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Hearing the siren of an approaching fire truck, you pull over to the side of the road and stop. As the truck approaches, you hear a tone of 470 Hertz; as the truck recedes, you hear a tone of 420 Hertz.
Find how much time will it take for the truck to get from your position to the fire 5.5 kilometer away, assuming it maintains a constant speed?
An ideal monatomic gas is contained in a vessel of constant volume 0.210 m3. The initial temperature and pressure of the gas are 300 K and 5.00 atm, respectively. Find the specific heat of the gas
Why is it unwise to suddenly apply the brakes of a car on a wet or icy pavement? Everyday examples where areduction in the force of friction would be undesirable?
question a proton is at the origin and an electron is at the point x 0.35nm y 0.34nm. find the electric force on the
an electron is fired with speed 2400 ms into a region of uniform electric field with magnitude 8 nc. assuming the
Jaime has a 4-kilogram mass on a 3 meter string, and he is swinging it around in a circle. How much force is Jaime using to pull the mass toward himself
A micrometer is connected to the movable mirror of aninterferometer. When the micrometer is tightened down on athin metal foil, What is thethickness of the foil
an accident in a fuel reprocessing plant caused by improper mixing of 235-u produced a burst of fission energy
An insulated Thermos contains 119 cm3 of hot coffee at 64 °C. You put a 12g ice cube at its melting point to cool the coffee. By how a lot of degrees have your coffee cooled once the ice has melted and equilibrium is reached.
A 46.0-kg child takes a ride on a Ferris wheel that rotates four times each minute and has a diameter of 20.0 m. What is the centripetal acceleration of the child
spark plugs should be tightened to a specified torque of 13.33 nm. you have a wrench that is 0.3 m long but because of
A 70-kg log falls from a height of 25 m into a lake. If thelog, the lake, and the air are all at 300K, find the change inentropy of the Universe for this process
A spring is mounted at angle of 35 degrees on a frictionless incline. The spring is compressed by 15 cm where it is allowed to propel a mass of 5.5 kg up the incline. a. if the spring constant is 550 N/m, how fast is the mass moving when it leaves th..
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