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How do rainbows form? Why is the secondary rainbow dimmer than the primary rainbow?
A 1.40 kg block slides with a speed of 0.950 m/s on a frictionless horizontal surface until it encounters a spring with a force constant of 734N/m. The block comes to rest after compressing the spring 4.15 cm.
A coin is placed 14.7 cm from the axis of a rotating turntable. The coefficent of static friction between the coin and the turntable is .51. What is the speed (in RPM) of the turntable when the coin falls off
Crate that weighs 20 Newton starts from rest and slides down a rough 5.0 meter long ramp inclined at 25o with the horizontal during this slide 20 Joule of energy is lost due to friction. Evaluate the kinetic force on the crate
question a 7.10 nc charge is located 1.76 m from a 4.14 nc point charge. a find the magnitude of the electrostatic
At the instant when the point charge is at the origin of this reference frame, what is the magnetic-field vector B→- it produces at the following points.
Yet another bizarre baton is created by taking four identical balls, each with mass 0.346 kg, and fixing them as before except that one of the rods has a length of 1.02 m, Calculate the moment of inertia of this baton when oriented
A rocket of mass 3.52 × 105 kg is in flight near earth's surface. Its thrust is directed at an angle of 61.0° above the horizontal and has a magnitude of 8.86 × 106 N. estimate the direction of the rocket's acceleration
A block is at rest on a plank whose angle can be varied. The angle is gradually increased from 0 deg. At 31.3°, the block starts to slide down the incline, traveling 2.80 m down the incline in 2.40 s. Compute the coefficient of static friction betwee..
A 60-kg skier with an initial speed of 16 m/s coasts up a 2.50-m high rise, Find her final speed at the top in m/s, given that the coefficient of friction between her skis and the snow is 0.08
The index of refraction for red light in water is 1.331 and that for blue light is 1.340. A ray of white light enters the water at an angle of incidence of 80.4°. What is the underwater angle of refraction for the red component of the light?
two wires on a piano are the same length and are stretched to the same tension. wire 1 vibrates at a frequency 1.5
A rocket of mass 3.95 × 105 kg is in flight near earth's surface. Its thrust is directed at an angle of 54.7° above the horizontal, compute the direction of the rocket's acceleration
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