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A soccer ball is kicked with a speed of 9.55 at an angle of 55.0 above the horizontal.If the ball lands at the same level from which it was kicked, how long was it in the air?
Consider a rectangular swimming pool of depth 2.7 m with a width and length of 13 m. What is the force exerted by the water on one of the sidewalls of the pool
A pendulum consists of a 3.1 kg stone swinging on a 4.2 m string of negligible mass. The stone has a speed of 7.9 m/s when it passes its lowest point. what is the total mechanical energy of the system
q1. a coin is placed 12.0 rm cm from the axis of a rotating turntable of variable speed. when the speed of the
You have a 0.421-kg sample of gas containing 1.99 moles. Calculate the rms, average, and most probable speeds of the gas\'s molecules
A rifle is aimed horizontally at a target 1,699.92 m away. The bullet hits the target 2.18 inch below the aim point. determine the bullets time of flight
A uniform disk of radius 0.459 m and unknown mass is constrained to rotate about a perpendicular axis through its center. Find the mass of the disk
A 1.8 kg ball of putty moving to the right has a head-on inelastic collision with the .50 kg putty ball moving to the left. If the combined blob doesn't move just after the collision, what can you end about the relative speeds of the balls before the..
Two small spheres hang in equilibrium at the bottom ends of threads, 40.0 cm long, that have their top ends tied to the same fixed point. Find the distance between the centers of the spheres
The gravitational force exerted on a baseball is 2.11 N down. A pitcher throws the ball horizontally with velocity 15.0 m/s by uniformly accelerating it along a straight horizontal line for a time interval of 174 ms. The ball starts from rest.
A mechanic's socket rolls off a 1.5 m high bench with an initial horizontal speed of 0.80 m/s. How far from the edge of the bench does the socket hit the floor
A motorist driving a 1200-kg car on level ground accelerates from 20.0 m/s to 30.0 m/s in a time of 5.7 s. determine the average mechanical power in watts the engine must supply during this time interval
A glider with mass m = 0.240 kg sits on a frictionless horizontal air track, connected to a spring with force constant k= 5.00 N/m. What must the initial displacement of the glider be if its maximum speed in the subsequent motion is to be 3.00 m/s
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