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The Eiffel Tower is built of wrought iron approximately 300 meter tall. Find how much its height changes between July (temperature of 29oC) and January (temperature of 0oC). Neglect the angles of the iron beams, and treat the tower as a vertical beam.
An archer shoots an arrow horizontally at a target 15m away. What was the initial speed of the arrow
a 280 kg log is pulled up a ramp by means of a rope that is parallel to the surface of the ramp. the ramp is inclined
A fire house 4.0cm in diameter is capable of spraying water at a velocity of 10 m/s. For a continuous horizontal flow of water, what horizontal force should a fireman exert on the hose to keep it stationary
The leader of a bicycle race is traveling with a constant velocity of +11.2 m/s and is 10.4 m ahead of the second-place cyclist. How much time elapses before he catches the leader
Luggage is transported from one location to another in an airport by a conveyor belt. At a certain location, the belt movesdown an incline that makes an angle of 1.7° with the horizontal. Assume that with such a slight angle there is noslipping of..
How many revolutions does the ball make during its fall. Now assume that the ramp is frictionless, so that the ball slides instead of rolling. Through what horizontal distance d does the ball move before landing in this case.
Two blocks connected by a string are pulled across a rough horizontal surface by a force applied to one of the blocks, what is the magnitude of the applied force
water flows at 0.56 ms through a pipe 19 cm in diameter when the pressure is 34000 pa. determine the water velocity
a fire hose exerts a force on the person holding it. this is because the water accelerates as it goes from the hose
A system gains 2850 J of heat at a constant pressure of 1.32 × 105 Pa, and its internal energy increases by 4100 J. What is the change in the volume of the system
If a bird were to start out from the origin (where the student starts) and fly directly (in a straight line) to the school, illustrate what distance would the bird cover? Express your answer in miles.
Scientists want to place a 4400.0 kg satellite in orbit around Mars. They plan to have the satellite orbit at a speed of 2659.0 m/s in a perfectly circular orbit. Here is some information that may help solve this problem:
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