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A hotel elevator ascends 273 m with a maximum speed of 3.78 m/s. Its acceleration and deceleration both have a magnitude of 0.91 m/s2. How long does it take to make the complete trip from bottom to top?
A square plate of copper with 47.0 cm sides has no net charge, Find the charge density of each face of the plate
The pulley system is used to lift a 61 kg crate. Note that one chain connects the upper pulley to the ceiling and a second chain connects the lower pulley to the crate. The crate is rising with an acceleration of 2.4 m/s2. Assume the masses of the ch..
A baseball player hits a ball towards the outfield with an initial velocity of 76.0 m/s at an angle of 45 relative to the ground. The outfield is 118 m away and is 4.0 m tall.
Compute gauge pressure of the flowing water
A projectile is fired with an initial speed of 36.2m/s at an angle of 41.1 degrees above the horizontal on a long flat firing range. determine maxiumum height reached by projectile
An object 9 cm tall is placed at the zero mark of a meterstick. A spherical mirror located at some point on the meterstick creates an image of the object that is upright, 4 cm tall, and located at the 49.0 cm mark of the meterstick.
An unknown piece of material with a mass of 5.1 kg and density of 1422 kg/m3 is suspended from a string, Determine the volume of the piece of material
A long pole is used to lift a window. If a vertical lift of 85 N is needed to raise the window, elucidate what force must be exerted along the pole? Assume the pole makes an angle of 49° with the vertical wall.
A proton is released from rest inside a region of constant, uniform electric field E1 pointing due North, What is the ratio of the magnitude of E2 to the magnitude of E1
You toss a ball up in the air with an initial velocity of 8 m/s (immediately after leaving your hand). Use gravity = -9.8 m/s2. What is its acceleration at its peak height
A rotating cylinder about 25 km long and 9 km in diameter is designed to be used as a space colony. with what angular speed must it rotate so that residents on it would experience the same acceleration due to gravity as on earth? In radians per se..
Compute the heat absorbed by the gas and work done by the gas during expansion.
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