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Q1. A 1700 kg car is travelling at 120 m/s while the driver takes his foot off the gas pedal. The car eventually rolls to the stop after 452 meters. Find the force of friction acting on car.
Q2. A baseball pitcher throws a ball at 43 m/s to a catcher 17m away. How far does the ball drop by the time it gets to catcher?
Q3. At a construction site, a 63.0 bucket of concrete hangs from a light (but strong) cable that passes over a light friction-free pulley and is connected to an 83.0 box on the horizontal roof. The cable pulls horizontally on the box, and a 45.0 bag of gravel rests on top of the box. The coefficients of friction between box and roof are shown. The system is not moving.
How much time is necessary to catch the car
A 2.20 sound wave travels through a pregnant woman's abdomen and is reflected from the fetal heart wall of her unborn baby. The heart wall is moving toward sound receiver as heart beats. The reflected sound is after that mixed with the transmitted so..
A 258-kg log is pulled up a ramp by means of a rope that is parallel to the surface of the ramp. The ramp is inclined at 30.0° with respect to the horizontal. The coefficient of kinetic friction between the log and the ramp is 0.980, and the log has ..
What is the main possible displacement of the shopper
How long does the total trip last
Find the magnitude of total displacement of the object
A ball is tossed from an upper story window of a building. Compute the height from which the ball is thrown.
If the initial temperature of the horseshoe is 450 °C, and the initial temperature of the water is 45° C, what is the equilibrium temperature of the system? Presume no heat is exchanged with the surroundings.
The alpha line in the Balmer series of the hydrogen spectrum consists of light having a wavelength of 6.56 ×10-7 meter. Compute the frequency of this light.
The magnitude of the acceleration due to gravity
If the weight of a room full of water is so great, why don't the first floors of houses built over basements all collapse as flooded to the ceiling.
What is frequency of the fork
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