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In a Broadway performance, an 65.2-kg actor swings from a 4.50-m-long cable that is horizontal when he starts. At the bottom of his arc, he picks up his 55.0-kg costar in an inelastic collision. What maximum height do they reach after their upward swing?
=_____ m
A 350kg piano slides 3.8m down a 29 degree incline and is kept from accelerating by a man who is pushing back on it parallel to the incline. Calculate the work done by the man on the piano
questiona status newtons first law of motion. b a 2-kg object is affecting horizontally with a speed of 4 ms. how much
Two charged dust particles exert a force of 8.5 x10-2 N on each other. What will be the force if they are moved so they are only one-seventh as far apart.
An 79 kg person is parachuting and experiencing a downward acceleration of 2.0 m/s2 shortly after opening the parachute. What upward force is exerted on the open parachute by the air
An electric motor can lift a weight of 2000N through a height of 10 m in 20 sec. What is power of motor
In 6.00 days the number of radioactive nuclei decreases to one-eight the number present initially. What is the half-life (in days) of the material
How fast must the car be travelling just as it leaves the cliff in order to clear the river and land safely on the opposite side.
What is the speed of the arrow as it leaves the bow.
Dolphins and other sea creatures can leap to great heights by swimming straight up and exiting the water at a high speed. How much time does it take for the dolphin to come to rest
Illustrate what is the gauge pressure at the upper face of the block? what is the gauge pressure at the lower face of the block? what is the mass of the block?
after boarding an airpalne you carry your 14.0 kg suitcase down the aisle to your seat a distance of 24.0 m
Your car's fan belt turns a pulley at 3.15rev/s . When you step on the gas for 1.55s , the rate increases steadily to 6.00rev/s, What's the pulley's angular acceleration
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