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A 2.60-kg kg material is forced against a masless spring with a force constant 200 N/m N/m , pressing the spring 0.220 m distance. After releasing, the material slides on a horizontal axis with a kinetic friction consant μk =0.30.
a.Calculate how far the material goes from initial position before reaching rest?
The index of refraction for a certain kind of glass is 1.648 for violet light and 1.619 for red light. find the difference between the angles of incidence of the two rays
2.30×106 atoms are excited to an upper energy level at t=0s. At the end of 10.0ns, How many photons have been emitted
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A crate is dragged 3.0 meter along a rough floor with a constant velocity by a worker applying a force of 500 Newton to a rope at an angle of 30o to the horizontal. Calculate how much work does each of these forces do
A softball of mass 0.220 kilogram that is moving with a speed of 4.0 m/s (in the positive direction) collides head-on and elastically with another ball initially at rest. Estimate the mass of the target ball
A 50.0 N box sliding on a rough horizontal floor and the only horizontal force acting on it is friction. You observe that at one instant the box is sliding to the right at 1.75 m/s and that is stops in 2.25 s by uniform acceleration. The force that f..
A plane traveling at 200.0 km/h attempts to land on a 250 m runway. The plane's engines and brakes accelerate uniformly at -7.0 m/s2. Will the plane be able to land safely
Calculate the normal force on the bridge atpoint B (the right support). The accelerationof gravity is 9.8 m/s2. Answer in units of N
A block of ice with mass 2.00kg slides 0.750m down an inclinedplane that slopes downward at an angle of 36.9 degrees belowthe horizontal. If the block of ice starts from rest, what is its final speed
a 12kg box is released from the top of an incline that is 5mlong and makes an angle of 40degrees to the horizontal. what will be the acceleration of the box
A 5.7-kg block is pushed 4.0 m up a vertical wall with constant speed by a constant force of magnitude F applied at an angle of ? = 30° with the horizontal, as shown in the figure below.
A 50 kg pole vaulter running at 10 m/s vaults over the bar. Her speed when she is above the bar 1.0 m/s. Neglect air resistance, as well as any energy absorbed by the pole, and determine her altitude as she crosses the bar.
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