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A rocket is fired vertically and ascends with a constantvertical acceleration of 20 m/s2 for 1.0 min. Its fuelis then all used and it continues as a free-fallparticle.
a. What is the maximum altitude reached?
b. What is the total time elapsed from takeoff until the rocketstrikes the earth?
A hotel elevator ascends 240 m with a maximum speed of 5.8 m/s. Its acceleration and deceleration both have a magnitude of 1.0 m/s2.
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A student could either pull or push, at an angle of 30â?? from the horizontal, a 45kg crate on a horizontal surface, Calculate the minimum work required for both pulling and pushing
A pulse travels on a string 8.0 m long and 12 g mass. If the tension in the string is 32 N, how long does it take the pulse to travel the length of the string
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A plank 2.00 cm thick and 16.7 cm wide is firmly attached to the railing of a ship by clamps so that the rest of the board extends 2.00 m horizontally over the sea below, find the shear modulus of the wood
an airplane whose airspeed is 550 kmh heads due north. but a 80 kmh wind coming from the east suddenly begins to blow.
A certain double-pane window consists of two glass sheet, each 80 cm x 80 cm x 0.30 cm, separated by a 0.30 cm stagnant air space. How much heat passes through the window each second
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