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The theory of relativity had a great significance in physics, what scientist is famous for this type of theory?
Suppose a car travels 108 km at a speed of 40.0 m/s, and uses 2.10 gallons of gasoline. Only 30% of the gasoline goes into work done against friction. What is the force of friction
A stone is projected at a cliff H=60 meters with initial speed 75m/s at 60degrees above the horizontal. How long does it take for the stone to strike the top of the cliff?
a catapult launches a test rocket vertically upward from a well giving the rocket an initial speed of 80.2 ms at ground
Five thousand joules of heat is put into a Carnot engine whose hot and cold reservoirs have temperatures of 490 and 270 K, respectively. How much heat is converted into work
A projectile is launched with a momentum of 200 kg*m/s and 1000 J of kinetic energy. What is the mass of the projectile
If the motor is then switched off, and frictional forces equivalent to a constant horizontal force of 200N act on it, find in what distance will it come to rest
Consider two projectiles launched on level ground with the same speed, at angles tan (± 45degree). Find the ratio of their flight times
A tennis player swings her 1000 gram racket with a speed of 11 m/s. She hits a 60 gram tennis ball that was approaching her at a speed of 17 m/s. evaluate the average force that the racket exerts on ball
question a 2.00-kg object moves with constant velocity 3.00 ms toward the east. two forces act on the object. the first
a ball is launched directly upward from ground level with an initial speed of 18 ms. air resistance is negligible.a how
A 5.0-rn-diameter garden pond is 0.300m deep. Solar energy is incident on the pond at an average rate of 400 W/m2. If the water absorbs all the solar energy and does not exchange energy with its surroundings, how many hours will it take to warm from ..
The 3.3 kg piece of wood slides on the surface. The curved sides are perfectly smooth, but the rough horizontal bottom is 35 m long and has the kinetic friction coefficient of 0.24 with the wood. The piece of wood starts from rest 6.0 m above the rou..
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