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A car of mass 1420 kilogram traveling at 20 m/s is at the foot of a hill that rises 120 meter in 2 kilometer. At the top of the hill, the speed of the car is 10 m/s. Compute the average power delivered by the car engine, ignore any frictional losses.
A monochromatic light source emits a wavelength of 490 nm in air. When passing through a liquid, What is the liquid's index of refraction
tarzan swings on a vine from a cliff to rescue jane who is standing on the ground surrounded by snakes. his plan is to
The masses of the earth and moon are 5.98 × 1024 and 7.35 × 1022 kg, respectively. What is the magnitude of the charge placed on each body
If the system is stopped, how much hanging mass would be required to bring the rotating mass to the same position.
A 3.0kg mass initially traveling in the +x direction at 3.0m/s collides with a 2.0kg mass traveling in the -x direction at 3.0m/s. find The coefficient of restitution between the two masses
A nozzle is now attached to the end of the hose. If the nozzle diameter is one-third the diameter of the hose, what is the speed of the water leaving the nozzle
bill steps off a 3.6 m high diving board and drops to the water below. at the same time ted jumps upward with a speed
During an adiabatic process, the temperature of 6.00 moles of a monatomic ideal gas drops from 565°C to 227°C. Find the change in internal energy
In a collision between a car of mass 1000 kg and a pickup truck of mass 1600 kg, the truck is initially at rest and the car is moving with a velocity 21 m/s. Immediately after the collision, the car is moving with a velocity 2.0 m/s in the same di..
As part of a carnival game, a 0.503-kg ball is thrown at a stack of 15.8-cm tall, 0.383-kg objects and hits with a perfectly horizontal velocity of 10.8 m/s. what is the moment of inertia of the object
the altitude of a hang glider is increasing at a rate of 6.80 m/s. At the same time, Find the magnitude of the glider's velocity
an office heater puts out 2010 btus british thermal units of energy in the form of heat per hour. given that 1 btu
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