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A ball is launched at 21.9 m/s at an angle of 25 degrees above the horizontal from the top edge of a building 55.7 m high. How far from the edge of the building does the ball land and what is its speed when it hits the ground?
a rod (length 3 meters, mass 1 kg) is pinned at its end so the stick can rotate freely in a plane parallel to a tabletop. Where along the rod is the force applied
A soot particle, originally neutral, gets charged in a process that removes 27 electrons. Find its resulting charge
Obtain an expression for the velocity
q1. an object weighs 302 n in the air. when tied to a string connected to a balance and immersed in water it weighs 220
This procedure has actually been used to "weigh" astronauts in space. A 42.5- chair is attached to a spring and allowed to oscillate. What is the mass of the person
A 2.6kg block slides along a frictionless surface at 2.0m/s . A second block, sliding at a faster 5.0m/s, collides with the first from behind and sticks to it. What was the mass of the second block
Imagine sitting on a steadily spinning merry-go-round, neither speeding up nor slowing down. Like all physics students, you have an identical twin, and your twin is sitting on the merry-go-round, but closer to the center than you. Which of you, if ei..
A 60 kg trunk is pushed 4.0 m at constant speed up a 30° incline by a constant horizontal force. Calculate the work done by the weight of the trunk
Two capacitors are connected to a battery. The battery voltage is V = 90 V, and the capacitances are C1 = 2.00 ?F and C2 = 4.00 ?F. Determine the total energy stored by the two capacitors
At point A, 4.20m from a small source of sound that is emitting uniformly in all directions, the intensity level is 52.0dB. How far must you go so that the sound level is one-fourth of what it was at A
A man lost in a maze makes three consecutive displacements so that at the end of his travel he is right back where he started. find the magnitude and direction of the third displacement
A meter stick is found to balance at the 49.7-cm mark when placed on a fulcrum. When a 53.0-gram mass is attached at the 27.0-cm mark, What is the mass of the meter stick
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