Archive for the ‘Physics’ Category

how long will spent nuclear fuel rods remain hot if not placed in water?

Tuesday, June 22nd, 2010

tjcsonofallnations asked: It seems incredibly dangerous that the only way these rods don't explode is if they are kept in pulls of cooled water/boric acid. What would happen if the power went out and the backup generators failed? Would the rods explode, spewing radiation out into the populous? ...

truck

Saturday, May 30th, 2009

kh2anime asked: a large truck on a hydraulic lift that takes the 7000 N of force on a Pisten with an area of 0.4 pistens of m3.the pu? support only? PA 16000 Pressure? it sure yo place this truck on that hydraulicCURTIS

How long is the truck in motion?What is the average velocity of the truck during the motion described?

Wednesday, May 13th, 2009

Victoria B asked: A truck on a straight road starts from rest and accelerates at 2.0 m/s2 until it reaches a speed? 20 m / s. Then the truck travels for 20 s at speed? constant until the brakes are applied, stopping the truck in a uniform manner in an ...

What is the speed of two railroad cars after they collide?

Tuesday, May 5th, 2009

finding.4ever asked: Rail car dell'AMS m. is moving at speed? v when faced with a second railroad car of mas m. what? at rest. The two cars close together instantaneously and move along the track. What? speeed car immediately after the collision? How to get it?JUNIOR

Suppose a car can accelerate at 1m/s2. How large a break in traffic is needed to enter a highway where cars?

Monday, April 27th, 2009

Vivian C asked: Suppose that a car can accelerate to 1m/s2. How great a break in traffic? required to enter into a main road where cars are moving a 20m / s if the drive wants to avoid forcing the diaries following car to slow down or come close to ...

How much energy did truck 1 lose from the top to the bottom of the hill?

Friday, March 13th, 2009

krysdizzle_2006 asked: You are a researcher of traffic accident. You arrived at the scene of an accident. Two trucks of equal mass (3,000 kg each) were involved in an accident to a post lantern arrest. here? what you know: The truck 1 approched the intersection from the top of ...

What is the maximum acceleration the truck can have without the box slipping?

Thursday, March 5th, 2009

smiles asked: A box of 100 kilograms of the dimensions 50 cm X 50 cm X 50 the cm is in the back of a truck-based platforms. The factors of friction between the box and the base of trucks are Î ¼ s = 0:40 and K ¼ Î = ...

What was the kinetic energy of each truck before they began braking?

Saturday, February 28th, 2009

krysdizzle_2006 asked: You are a researcher of traffic accident. You arrived at the scene of an accident. Two trucks of equal mass (3,000 kg each) were involved in an accident to a post lantern arrest. Here is what you know: The truck 1 approched the intersection from the top ...

What was the potential energy of truck 1 at the top of the hill?

Thursday, February 26th, 2009

krysdizzle_2006 asked: You are a researcher of traffic accident. You arrived at the scene of an accident. Two trucks of equal mass (3,000 kg each) were involved in an accident to a post lantern arrest. Here is what you know: The truck 1 approched the intersection from the top ...

How fast does a truck have to be moving to catch a stuntman falling off a bridge?

Friday, February 13th, 2009

John Q asked: During the film, a stuntman must each be from a bridge into a moving truck. Assume that the stuntman has a speed initial 0 m / s and should fall 7 M. The truck? 10m away when the stuntman begins to fall and is traveling at a ...