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A model rocket is constructed with a motor that can provide a total impulse of 39.0 N·s. The mass of the rocket is 0.229 kg. What is the speed that this rocket achieves when it is launched from rest? Neglect the effects of gravity and air resistance.
The escape speed from a distant planet is 43 km/s. If the acceleration of gravity on the planet surface is 11.0 m/s2, what is the radius of the planet
Consider a binary separator used to separate aluminum cans from glass. A total mass of 0.8 tonne/hr enters. what is the recovery of aluminum
The output voltage of an AC generator is given by ?v = 107 V sin (45?t). Find average power delivered to the inductor
A bicycle is moving at a speed v = 4.26 m/s. If the radius of the front wheel is 0.450 m, how long does it take for that wheel to make a complete revolution.
Objective questions based on work, energy, power.
Suppose that a simple pendulum consists of a small 61 g bob at the end of a cord of negligible mass. find the pendulums maximum kinetic energy
A 60.0 g bullet is fired from a muzzle velocity of 525 m/s from a gun with mass 4.50 kg and a barrel length of 55.0 cm, Find the bullet's momentum as it leaves the barrel
a 2598.79 lbs. go cart and driver rounds a curve. If the centripetal force on the go cart and driver is 1250 lbs. What is the radius of the curve
Suppose 1.0 mol of a monatomic ideal gas initially at 10 L and 335 K is heated at constant volume to 670 K, What is the net work done by the gas during the cycle
a 0.22 kg block of cheese lies on the floor of a 870 kg elevator cab that is being pulled upward by a cable through distance d = 2.3 m. how much work is done on the cab by the force from the cable
The decibel level of the noise from a jet aircraft is 130 dB when measured 16.8 m from the aircraft. How much sound power does the jet aircraft emit? How much sound power would strike the eardrum of an airport worker 16.8 m from the aircraft? Assu..
A child is moving at constant velocity carries a 2N ice cream cone 1m across a level surface. WHat is the net work done on the ice cream cone
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