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Question: A blue ball is thrown upward with an initial speed of 21.2 m/s, from a height of 0.5 meters above the ground. 2.6 seconds after the blue ball is thrown, a red ball is thrown down with an initial speed of 11.5 m/s from a height of 25.7 meters above the ground. The force of gravity due to the earth results in the balls each having a constant downward acceleration of 9.81 m/s2.
A football player who weighs 85 kg is carrying the ball directly up field at a rate of 15 km/hr. What is the initial momentum of the offensive player
A box is placed on a conveyor belt that moves with a constant speed of 1.05. The coefficient of kinetic friction between box and belt is 0.80. How much time does it take for the box to stop sliding relative to belt.
q1. a hot-air balloon is rising straight up with a speed of 1.83 ms. a ballast bag is released from rest relative to
An object initially displaced 75.25 m (along the horizontal x direction) has in initial velocity downward (along the -y direction) of 57.28 cm/s. Assuming that the object is on Neptune which has an average acceleration of gravity of 11.15 m/s2, deter..
Two metal blocks are attached by a cable as shown in the figure below and are submerged at rest near the surface of a lake. what is the total buoyant force on the two blocks
Two blocks of weights 24.0 and 50.0 N are connected by as massless string and slide down an inclined plane making an angle of 23.0 deg. to the horizontal. find the magnitude of the heavier block's acceleration
a parallel-plate capacitor in air has a plate separation ofnbsp1.43nbspcm and a plate area of 25.0 cm2. the plates are
Two stars in a binary system orbit around their center of mass. The centers of the two stars are 7.30 x 10^11 m apart. What is the mass of the smaller star
1500 cm3 of ideal gas at STP is cooled to -20o C and put into a 1000 cm3 container. what is the final gauge pressure?
A barge with a mass 1.50 X 10^5 kg is proceeding down river at6.2 m/s in heavy fog when it collides broadside with a bargeheading directly across the river. What are the speed and direction of motion of the first barge
question1a playground merry-go-round of radius r 1.80 m has a moment of inertia i 255 kg.m2 and is rotating at 8.0
A 12373-kg ice skater is standing at rest on a frozen lake. The friction between his skates and the surface of the ice is negligible. what is the magnitude of his recoil velocity
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