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A body passes a certain point A of the straight line on which it is moving with uniform accelaration. One second aterwards it is 11m beyond A and in the nest second, it travels 13 m. Find the velocity it has when passing A, and how far it travels in the third second after passing A.
A puck (mass m1 = 2.50 kg) slides on a frictionless table. The puck is tied to a string that runs through a hole in the table and is attached to a mass m2 = 7.5 kg. What is the change in the kinetic energy of the puck
a a football player kicks a football in a field goal attempt. when the football reaches its maximum height what is the
during 9.75 seconds a motorcyclist changes his velocity from v1x -30.3 ms and v1y 13.1 ms to v2x -26.1 ms and v2y
Indiana Jones is pushing back a 285 kg box which slides 4.3 m down a 29° incline and kept from accelerating. Calculate the force exerted by jones
A woman with a mass of 55.0kg is standing on the rim of a large disk that is rotating at an angular velocity of 0.470rev/s, Calculate the magnitude of the total angular momentum of the woman-plus-disk system
A rotating door is made from 4 rectangular glass panes. The mass of each pane is 85 kg. Determine the magnitude of the doors angular acceleration
Light of wavelength 665 nm is used to illuminate normally two glass plates 12 cm in length, How many bright fringes appear along the total length of the plates
At time t=0 a grinding wheel has an angular velocity of 28.0 rad/sec. It has the constant angular acceleration of 35.0 rad/sec^2 until a circuit breaker trips at time t=1.80. From then on, the wheel turns through an angle of 433 as it coasts to the s..
You see the boy next door trying to push a crate down the sidewalk. He can barely keep it moving, and his feet occasionally slip. You start to wonder how heavy the crate is. You call to ask the boy his mass, and he replies " 48.0kg .
A 100-watt light bulb is brighter than a 25-watt light bulb because it uses more power. Which bulb has a greater resistance, the 100-watt or the 25-watt light bulb
q1. a 75-kg person sits on a 3.7-kg chair. each leg of the chair makes contact with the floor in a circle that is 1.5
A 13 g bullet traveling 230 m/s penetrates a 2.0 kg block of wood and emerges going 170 m/s. how fast does it move after the bullet emerges
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