it's gonna be six miles per hour per second. so the acceleration of that car is six miles per hour per second. and if that acceleration stays uniform, stays constant, that's to say then as long as it's doing that, every second goes by, the car is going to go be going faster than the second before. by how much? six miles per hour. by six miles per hour. you'll gain six miles per hour every second. ain't that neat? so that's the acceleration of the car. let's suppose i told you this: i have a car that will go from zero to 100 kilometers per hour in 10 seconds. what's the acceleration? from zero to 100 kilometers per hour in 10 seconds. let's see if you can do it at your desk. go. in this case, you're going 100 kilometers per hour and changing to 100 in 10 seconds, and so what do you have over here? 10. 10... kilometers. ...kilometers per hour per second. okay? you get the idea? acceleration is something that you can feel. when you're in a car and accelerate, you can feel that acceleration. in fact, you have controls in the car tha

later on we'll round that off to 9.8 meters per second, per second, okay? but 10s are easier to deal with, right? and we find out that how fast we go is simply the acceleration multiplied to how long you're falling. it makes sense. and how far you go has to do with the time squared. so it's averaging out 5t squared. how we got that is derived in the footnote of your book, and you can kind of go back and look at that if you want. i don't expect you to derive that. i want you to just know this doesn't pop out of the air and magic, okay? there's a reason for this. now, we talked how that came about last time. look it up if you want. what's kind of interesting is the behavior of the ball when it rolls off the table? i don't think i'll roll it off the bottom. it might wake up the people downstairs. but can you--it's gonna kind of curve, isn't it, gang? it's gonna curve. and, you know, that curve wasn't understood for a long time. and when that curve was understood, it was kind of exciting. and let's talk about that. we can kind of show that up here. it's all on

so if you have a00-mile-per-hour hurricane wind, you have a 65-mile-per-hour two-by-four, you don't wanto be caught by that. >> film, thanks very much. we'll be right back. you know what i love about this country? trick question. i love everying about this count! including prilosec otc. you know one pill each morning treats your frequent heartburn so you can enjoy all this grt land of ours has to offer like demolition derbies. and drive thru weddings. so if you're one of those people who gets heartburn and then treats day after day, block the acid with prilosec otc and don't get heartburn in the first pla. [ male announcer ] one pill each mornin hours. zero heartburn. >> aouncer: meet tom, a proud dad whose online friends all "like" the photos he's posting. oscar likes tom's photos, but he loves the access to tom's personal information. oscar's an identity thief who used tom's personal fo to buy new teeth and a new car, and stuck tom with the $57,000 bill. [tires squeal] now meet carl who works from the coffee shop and uses the free wi-fi. marie works from there too. she's an identity th

this project has a total of one -- $1.29 4 billion and a total impact of 20 two dollars per month per average bill. when we move to the west side, we focus on the csd discharges along ocean beach, lincoln way, the 70 -- vicente and merced. we had an average discharge our current of 3 per year to the bathing beaches. in doing these analyses, we focused on utilizing the transport storage boxes, the website pump station, and the existing out hall. we looked at various pop stations to get as to the target of three. you may recall that we had 100 stations at a cost of $277 million. we also discussed the possibility that a smaller pond station with green could get us to that target. based on initial analysis, that has been determined that with three could meet the target of three. the cost however would be $290 million. we recommend the two hundred $90 million with the $13 million difference from the $277 million, again, being allocated from the infrastructure $400 million commitment. again, as this project is developed, we can determine the right combination of pumping and infrastructure t

so, 80 mile-per-hour winds. it has slowed down. northwest at 8 miles per hour. and there is the risk that it is going to slow down even more. it's just going to crawl across the coast and there is a lot of march here, a lot of swamp land. there we are not going to see perhaps a weakening like we would if this storm was going to go across land and go quickly. this is going to be a slow, very painful process. unfortunately for folks along the gulf coast, very vulnerable area unfortunately for storm surge and flooding. of course we know it very well. now, tornado watches in effect for the next several hours. from new orleans all the way to panama city. so parts of mississippi, alabama, you could see some strong rotation overnight tonight. these could be rain wrapped tornadoes. so you can't see them coming. know noaah weather raids on. strong band north of that region and some earlier rotations. we will keep an eye on that. shepard, already seeing wind gusts of 64 miles per hour around new orleans. 48 in mobile. and there is the track. the latest update, again, 80 m

winds of about 80, 90 miles per hour.w gusts over 70 in new orleans. -- it still remains a hurricane. look at the yellows and reds. that is indicating rainfall rates in excess of an inch an hour. about 8 inches in parts of new orleans already. they could easily double or some in cases triple that number. there are widespread reports of flooding starting to occur. remember that new orleans is basically in a sink. it is in a bowl so the water naturally wants to get down into the city. the center of circulation, you can still see that eye off to the south and west of new orleans. haupt been moving a lot now off to the north and west at eight miles per hour. -- hasn't been moving a lot now off to the north and west at eight miles per hour. let's do local weather and we'll do more on isaac coming up. 70 here. we'll be in for a beautiful day across the mid atlantic. lots of sunshine expected with lower humidity. check out your wind at nine miles per hour. that is what you call a quiet radar. that is a quiet one. later today, lo

remember, tropical storm force winds are 39 miles per hour to 74 miles per hour.ight now isaac is a high end tropical storm. here's the satellite picture. winds are sustained at 70 miles per hour to 60 miles west of new orleans and it's moving just crawling northwest at about 6. notice this picture, the reds are less prominent than yesterday which means the convection is weak among. it's getting over land. the cloud tops are rant as high in the atmosphere. that said it is still -- are not as high in the atmosphere. that said it is still cranking out some serious rainfall. it will probably take until tomorrow night to get out of louisiana and then begin to accelerate off into the midwest and it's actually going to be a silver lining, some much needed rainfall in the midwest possibly a result of the remnants of isaac. joining us now to talk about how isaac's winds and rains are taking a toll on the gulf coast's infrastructure is major joe ingram, staff weather officer for the army corps of engineers here in d.c. thanks for being here. let's say we add another 4 to 8

in fact it gusts to 75 miles per hour. so in addition to very windy conditions, extremely heavy rain already reports of upwards of 8" of rain across parts of new orleans and they are just getting going, unfortunately. the storm moving so slowly, the heavy rain, the thunderstorms, the threat of tornadoes and the storm surge will continue here and continue to batter the southeast coast for several more hours. i think it will be late this afternoon before this system is far enough away that things will start to calm down there in the big easy. let's do some local weather very quickly. around here, you saw the live shot. couldn't be nicer. 69 degrees now. humidity 75%. north winds at 8. low humidity and lots of sunshine today. that's what you call a quiet radar. and we're not expecting anything more than a few clouds today. lots of sunshine, a beautiful afternoon, 85 and sunny. it will feel like a nice late summer day for us today and a nice trend for us as we get into the weekend. i'll have details on that and more on isaac i

isaac is moving just seven miles per hour. city could be seeing torrential downpours for much of today. flooding is a major concern elsewhere along the gulf coast. this is in gulf port, mississippi. we're hearing reports of storm surges of 11 feet. news4's melissa mollet is tracking this. >> let's look at this video. that is in gulf shores, alabama. take a look at that rain. take a look at that wind that sand moving across the road right now. again, a levee in louisiana being overtopped. deputies are going door to door telling people in that area to get to higher ground. officials say there is already 12 feet of water inside the homes there. just a short time ago a 83-mile-per-hour wind gusts was measured a lake ponchartrain. tens of thousands of people had to be evacuated from low-lying areas in both mississippi and louisiana, we will keep an eye on things for you throughout the morning. back to you. >> melissa, thank you. >>> and coincidentally, today marks the seventh anniversary of hurricane katrina. it killed more than 18

just a quick grocery list. $10 per crewmember per visit is pretty severe. these are sailboats. very few of them can be sailed alone. the past system is working now. it seems to me to be very satisfactory. the one-car permit per berth might be better to be per owner, because some cannot have it boats. i think needs to be a differentiation their. changing the parking seems to be something like fixing something that is not broken. we have an overflow and it seems to be fine the way it is. the idea of using the gate only to control parking -- there seems to be an art in the bay area. there are those who get in very quickly with the car in front of them. the much talked-about and much delayed embarcadero line -- you have all these properties under your authority. we need one line to serve the whole waterfront. i ask muni people. it is always going to be done in two years. if you have any clout, please use the. we got a lot of sun and solar. maybe that is something we should be looking at. thank you very much. commissioner ho: robert, and after robert, paul. >> my name is robert wood

after closing just above $16 per share. the stock sank more than 3.5% in after hours action, trading below $15.50 per share. the company has launched a business strategy review led by new c.e.o. marissa mayer. yahoo would get an estimated $4.2 billion profit from selling its stake in alibaba. also after the close, stronger than expected earnings from semiconductor maker n-vidia. the company continues profiting from its push into mobile phones. earnings were eight cents ahead of estimates. after closing up 3.4%, shares added another 5% in after hours action, trading around $15.50 per share as its outlook was better than expected. a merger in the energy equipment industry, as the biggest oilfield equipment maker looks to get bigger. national oilwell varco is the buyer, offering $2.5 billion for robbins and myers. robbins and myers shareholders would get $60 per share. robbins and myers stock shot up 27.4% to a new high, closing just shy of the buyout offer price. national-oilwell shares gained a fraction, rising to a three-an

the more customers they can serve per hour, the more leverage they have. the key to the gross margin are the cost of the food, the cost of the labor and most importantly the number of customers they can push through in a given day. of course there are dozens of other inputs advertised and need to have as little turnover as possible because the cost of training new employees is tremendous. it is a huge obstacle to making a lot of money. that's something a former ceo of costco made clear to us on many occasions on this show. in fact, senegal was legendary for paying employees the most and treating them with the best of benefits because it is so important to keep them happy so that the firm doesn't constantly have to train new people. new people are not known to regular customers and like to see the same old hopefully smiling faces and new people cost too much money. same for chipotle where the most talented are quickly given promotions and opportunities to run more stores. mcdonald's, similarly, often praised for gross margin improvements because it has the

i recorded gust of 45.2 miles per hour. steady in the 20's and 30's with water up on the sidewalk here and most of the boats are gone. look at that boat over there that is tossed around quite a bit. the owner is out of the country and people here are looking after it for him but he could be in some trouble if they get 5' storm surge and steady wind in the 50's we were told to expect. you mention the power outage, a man, 72-year-old man on a sailboat out here and he was rating on engine power and the engine died. he called the coast guard they rescued him and left the boat adrift out there in mobile bay. that boat wound up smacking into a power pole in the water on the other side of the bridge. you can see the causeway and his boat hit one of the posts, knocked out the power and they will not repair it until the storm passes which could be two or three days from now. >>shepard: a lost evacuations there? or are people riding it out? rick: a lot of the people had to get out. the west end of the island the road has been underwa

. >> reporter: the winds are 25 miles per hour and we expect them to deteriorated quickly as the threat of isaac looms and president barack obama has declared use use a state of emergency and this state as well as other states are prepared. >> we are not taking any chances, homes and businesses... >> it is approaching the central gulf coast. >> reporter: isaac is expected to hit sometime today and it could also hit mississippi where the state is taking every precaution necessary. >> we have to err on the side of caution. if they say it is a category 2, we have to plan for a category 3. >> reporter: in louisiana, the u.s. army corp of engineers are busy piling tons of sand to reinforce new orleans levee system from back in 2005 but residents say after surviving that storm they can handle isaac. >> we should be relatively okay. i am not kidding myself, i know we will have wind and water but as far as katrina's destruction i am knocking on wood. >> others are more cautious and have already sought shelter in area shelters. and many are also preparing. >> reporter: rick perry is getting in t

the wind will be a 5 miles per hour. we will drop down into the 60's tonight with increasing clouds. 40% chance for rain on saturday. another storm returns on tuesday. >> we have a messy situation on the west side outer loop of the beltway. an accident approaching liberty road. some debris southbound on 795. in ellicott city, main street remains shut down for the train derailment and cleanup. a crash northbound 32 at 144. eastbound 50, two left lanes are closed. one lane of traffic is getting by eastbound. we have a water main break and an alternate traffic pattern abington. the major outside at roadways. 70 west of the beltway is looking good. this is the j.f.x. at ruxton road. no problems getting into the city. that is the latest on traffic pulse 11. >> starling news in the cycling world. lance armstrong says he will drop his fight against doping claims. he is being stripped of its titles. he says he is not admitting to cheating but he is tired of trying to clear his name. a court has found an extremist who confessed t

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wind gusts, 78 miles per hour. rain now, 8.37 inches at lake front arrest port on lake ponchartrain in northern new orleans. it has been dark down there for the past several hours and i'm sure when we get some light this morning, we'll see lots of signs of damage down across southeast louisiana. tornado warnings as well. let's do local weather. couldn't be nicer around here. we've got sunshine in the forecast. overnight lows, look at that, back into the comfortable range. 69 in washington. 63 this morning in gaithersburg. we are 66 in leonardtown. very comfortable conditions around here. we have the 50s breaking out. 59 in frederick and in martinsburg. combination of warm temperatures in the mid-80s and low humidity. a lot of sunshine today. it will make today i think close to perfect for late summertime weather. it should be nice and dry. warming trend as we get into the weekend but lots of sunshine for the next several days. high pressure keeps us nice and dry. back into the low 90s by saturday. the thunderstorms

winds at 65 miles per hour.key west and it passes by sometime late tonight, midnight, and winds around 80 miles per hour in the open gulf and then the timeframe as possibly a category 2, 105-mile-per-hour winds. at the beaches, only in the 80s with lots of showers again today. the extended weather forecast shows that we stay in the 80s this week, all weekend long, not looking at many chances for 90s, and the best shot at being 90 is tomorrow, and that's the best shot of being dry between tomorrow and wednesday. that's my scoop. >> if we get through [ taste buds ] donuts, donuts, donuts! who are these guys? oh, that's just my buds. bacon, donuts. -my taste buds. -[ taste buds ] waffles. how about we try this new kind of fiber one cereal? you think you're going to slip some fiber by us? rookie. okay. ♪ nutty clusters and almonds, ♪ ♪ almonds. ♪ fiber one is gonna make you smile. ♪ [ male announcer ] introducing new fiber one nutty clusters and almonds. with 43% daily value of fiber for you. crunchy nutty clusters

90 or even 100 miles per hour. some of the worst conditions are moving into the city of new orleans as the eye wall continues to push in. we are seeing heavy rain out there. we are talking about over 6 inches already reported in the city of new orleans. we are seeing some of the flooding occurring in the city. we have a tornado watch. we have been talking about how we have a tornado risk. that's what we are seeing this morning across extreme western parts of the florida panhandle into parts of southeastern louisiana. this particular tornado watch goes into effect until 7:00 a.m. central time. we have one tornado warning across western parts of gulf port in mississippi. a tornado warning out there. there could likely be a tornado on the ground. these are short lived and could cause damage. we will keep you posted on that. we are starting to see dry air making its way into the center of the storm system you can see it popping up on the western side of the storm. hopefully that does help to weaken isaac but it is stil

motion at seven miles per hour. local immediateologists owe projecting it's going to slow down more that, could be up to 40 straight hours of rain. this story is not yet written. >> shep, thank you. now to fox news chief meteorologist in our extreme weather center. >> the story hasn't begun across areas of new orleans. they're just starting to get it. there is a long way ahead. this made a first land fall just at this tip here. this is where mississippi river exits into the gulf. this cut across a piece of land. now it's going to cut back in here around grand aisle and this is going to continue in this direction. it puts new orleans on the bad side of the storm. winds are going to be stronger, this is a future radar to get an idea at around 3:00 in the morning when you see reds and yellows that is heavy rain and winds. there is winds gusting to 64 in new orleans. reds andel yoz continue here, mid day still going on. winds in 60s still this, continues tomorrow night this time and we're talking winds around 60 miles i

san jose, novato, wind right now out of the west at 12 miles-per-hour.ery falllike temperatures today. inland, mid-to-low 70s. 75 right now in antioch. 72 in concord. 68 in san rafael. san francisco, 62. half moon bay, low clouds and fog off the coach, managed 63. that's your temperature right now, and it's 69 in san jose. so, we are looking for the clouds near the coast and the bay inland. you should be clear. it will be a nice mild day inland tomorrow, plenty of sunshine, and then get ready for slightly warmer temperatures heading into tuesday and wednesday. lows tonight, generally in the 50s. we me a brake out into a few mid-to up per 40s in extreme north bay communities, a bit a drizzle near the coast, and tomorrow morning, few coastal clouds, cool inland. by lunchtime, low 70s developing in extreme east bay locations, and by 4:00, temperatures in the mid-80s inland and even some 60s at the coast, less fog there tomorrow and then start to trim those temperatures down around the 7:00 hour. high pressure will build in tomorrow so look for slightly -- i

winds, 46 mile-per-hour wind baton rouge, 48 new orleans and a 43 mile-per-hour wind in biloxi. you can see where the storm is right now between morgan city and new orleans, 53 mile-per- hour wind just west of morgan city and a 41 mile-per-hour wind over in lake charles. winds are still a factor. rain is the big keith an additional 4 to 10 inches of -- big key. an additional 4 to 10 inches of rain possible on the gulf coast. for us flip a switch, live look outside looking out towards tysons brought to you by michael and son, fantastic really, 86, dew point in the 50s. that's great. comfortal, not very humid. i can open my windows tonight, turn off the air, currently 83 arlington, 85 college park, even a sprinkling of 70s, 79 vienna, 78 in reston, still 84 in manassas. so great night for football, no doubt about. that maybe you want a light jacket for the game, probably upper 60s, low 70s before the game is over. rest the ac, warmer thursday, hot finish to the week, but humidity remains in check through friday. next three days keep it code green, fantastic tomorrow 88, 94 friday,

now, 80-mile-per-hour winds. we're continuing to watch it move towards the city of new orleans and the official track hasn't changed a whole lot. take a look at the official track and you see what i'm talking about. making its way towards the north really moving through the northwest at 8 miles per hour, as a hurricane, very close to new orleans overnight tonight and init tomorrow as a hurricane and then quickly becoming a tropical storm. i'm still worried, i'm still a little leery about that path, however. i think it will stay farther south and i think we'll have to deal with a lot more rain and maybe a lot mor wind and, once again, we're going to continue to bring you live updates from new orleans right through the night tonight. righten through the 11:00, through the day tomorrow. we'll be here for you covering it. >> all right, doug kammerer, braving the storm, thanks. >>> president obama has already approved a disaster declaration for louisiana as isaac approaches and he has also urged gulf coast residents t

vehicles will now have to average more than 54 miles per gallon, up from the current 29 miles per gallonnow, to meet these standards, out to makers will have to adopt new technology to improve gas powered engines and some more alternative fuel cars and trucks. critics say the rules will add thousands of dollars to the sticker price. so we'll see. >> all right, shartia brantley. shartia, thank you. >>> and if you'ring looking for the best online deals, try shopping on tuesday and thursday. a new report says you can also find good deals on sundays. now, the best month to find deep discounts is november followed by january. march is the worst month to find great deals online. new companies are more likely to offer sales and deals. >>> "50 shades of gray" is no longer number one. it lost the top spot on amazon's best-seller look to a book about the assassination of osama bin laden. " "no easy day," written we a former member of s.e.a.l. team 6. they just pushed. the release date to september 4th. >>> meanwhile, a couple of dare defrls from arlington took their love to new heights when they t

it started out at about $31 per month. that would be projected to increase to $82 over the next 20 years. this is all the good work you have already planned, bringing on another $1 billion for replacement to keep the system running well. that is why that is going up over time. it levels off because we assumed that we are in a steady stage for our water mains. next would be the portion of the bill for customers that is related to store operation. this is the 24-7 operation of the storage system that we currently have today. you can see that that goes up modestly once you put it on top of the water bill. it grows to about $135 over that 20-year period. we have also gone through and looked at your capital plan and brought the level of investment up to 15 miles per year. that moves it towards a 100-year replacement cycle for the sewer mains as well as the water mains. in these numbers, part of what you have stacked up is a steady state of best management practices for repair replacement for what our existing system is, includi

maximum winds about 08 miles per hour. they've had winds gusting 60, 70 miles per hour through the city during the overnight hours. parts of the area, about 8 inches of rain so far. they're not done with it yet. in some ways, they are just getting started. >> could it grow in strength? >> not going to grow any more in strength. it is not losing a lot of strength either. >> it is just sitting there, not moving really quick. >> we'll take a look at it in a minute. let's do local weather real quick. here in town, we are doing fine. beautiful, i mean gorgeous. temperature falling back in the 60s outside the beltway. right now, we are 71 in town. humidity in check. 73%. wind are out of the north at five miles per hour. that is what you call a quiet radar. i'll show you a not quiet radar down in new orleansin just a bit. i think it will be asony, bright, beautiful day with high temperatures topping out in the mid-80s and not a lot of humidity. we are in for a nice stretch of weather not only today but as you get into tomorrow an

we are working less per week in fewer hours per year. the average housekeeper in 1910 spent 12 hours a day on laundry, cooking, sweeping, cleaning. today, it is about 1.5 hours. here is the typical housewife's laundry day in the year 1910. first, sheep took water to the stove -- she took water to the stove, moves on to the task of ironing using a heavy flat iron continuously heating it over the required 8.5 hours and miles of walking. by 1940, our heroine has a washing machine and her lawn today is down to 2.5 hours as she walked 665 feet. today, nobody spends 2.5 hours on the launch. you throw the laundry in. if you have a fancy machine, it e-mails you to let you know when it is done. [laughter] in 1900, most houses the not have central heat, did not have plumbing. though other routine tasks including lugging lumber around. the average american has gained six hours a week of leisure. that is the amount of time we spent in the office are commuting is down by six hours a week. that is the equivalent of getting seven extra vacation weeks p

winds at 80 miles per hour.n by tomorrow night, it looks like it could stay as a tropical storm well inland. here's the thing. remnants of this could go well up into chicago, as we head through the next couple of days. >> thanks, jeff. thanks for joining us tonight. we hope to see you back here tomorrow. >> announcer: it's "the tonight show with jay leno," featuring rickey minor and "the tonight show" band. tonight, jay welcomes -- emmy award-winning actress, lisa kudrow. from "fast n' loud," richard rawlings and aaron kaufman. the music of owl city and carly rae jepsen.

at this moment, isaac's winds are 70 miles per hour and that is shy four miles per hour of hurricanetreet. it is less than be you miles from the mouths of the mississippi and has slowed down. think of the storm needs water for life. the water is fuel. the land will kill it longer it sits over the water the stronger it will become. it was moving at 20 miles per hour and now moving at 14 miles per hour and it will sit over the hot gulf of mexico water gain strength and gain power as it moves toward. it will get here later but it will be stronger that is the prediction from the national hurricane center. isaac will be between the florida panhandle and by - bay yoys of the new orleans it is it ripe for the french quarter it is expect tod bring a storm surge. that ruined new orleans in 2005. remember a category 3 hurricane named kathryn did not hit new orleans. it hit mississippi and yet new orleans way to the west got a 19 foot storm surge that ruined the city and flooded the big easy and left of the streets of the beautiful town covered exactly senyears ago, that kathryn hit the coast l

winds are up to 80 miles per hour. that's a sustained wind and it does appear it's going to stay a category one as it makes land fall. right now it's 30 miles south, southwest of the mouth of the mississippi and 100 miles southeast of news , weather , new orleans. we are looking at winds of 80 miles per hour with gusts over the course of the next 12 to 18 hours. we get into thursday, at least in the afternoon. then it moves up into arkansas and weakens, becomes a depression eventually, extra tropical. but the good news, the silver lining, i cannot emphasize this enough is rain in parts of the midwest, where they have been dry and especially this summer. so again, land fall tonight. probably just to the southwest of new orleans. late tonight or very, very early in the morning on wednesday. radar. it's already pounding much of the florida panhandle. remember, scott broom was in pensacola. tropical storm force winds extend out from the center about 180 miles. we'll focus on this eye going across new orleans, but remember