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A box of mass m = 3.50 kg is given a push down an inclined plane which makes an angle of 30 degree with the horizontal. The box moves at 2.00 m/s when it is 30.0 cm vertically above the top of the spring, and the coefficient of kinetic friction between the box and the incline is 0.25. If the force constant of the spring is k = 20.0 N/m, find the maximum displacement of the end of the spring.
An airplane is to drop an abject to hit a target on the ground. The plane is flying at a constant speed of 300 km/h horizontally, How far in advance should the object be let go in order for it to reach the target
three 0.04 kg particles have been glued to a rod of length L = 13 cm and negligible mass and can rotate around a perpendicular axis through point O at one end. How much work is required to change the rotational rate
q1. a heavy piece of hanging sculpture is suspended by a 146.0 cm long 8.03 gm wire. when the wind blows hard the wire
An apple drops from the tree and falls freely. The apple is originally at rest a height {H0} above the top of the grass of a thick lawn, which is made of blades of grass of height {h}. When apple enters the grass, it slows down at a constant rate ..
A positively charged particle of mass 6.20 multiply.gif 10-8 kg is traveling due east with a speed of 50 m/s, What is the magnitude of the magnetic force acting on the particle
An air-filled parallel-plate capacitor has plates of area 2.50 cm2 separated by 2.00 mm. The capacitor is connected to a 3.0-V battery, What is the magnitude of the uniform electric field between the plates
A 6.30 kg block is pushed 9.45 m up a smooth 40 degree inclined plane by a horizontal force of 70 degrees north. Calculate the final kinetic energy of the block
what slit separation required to desired interference patten.
A 60·kg crate, starting from rest, is pulled across a floor with a constant horizontal force of 340·N. What is the final speed of the crate
Cheetahs, fastest of the great cats, can reach 45 in 2 starting from rest. Assume that they have constant acceleration throughout that time, find their acceleration (in (a) and (b) ) and the distance (in (c) and (d) ) Q2. They travel during that t..
A CD with a diameter of 12.0 cm starts from rest and with a constant angular acceleration of 1.00 rad/sec2 acquires an angular velocity of 5.00 rad/sec.
A toroid of mean radius 27 cm and circular cross section of radius 1.7 cm is wound with a superconducting wire of length 1000 m that carries a current of 350 A. What is the magnetic field at the mean radius
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