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A glass lens has a scratch-resistant plastic coating on it. The speed of light in the glass is 0.659c and the speed of light in the coating is 0.844c. A ray of light in the coating is incident on the plastic-glass boundary at an angle of 12.8° with respect to the normal. At what angle with respect to the normal is the ray transmitted into the glass?
What is the minimum rate of rotation, in revolutions per minute, required for the spheres to contact the cylinder wall?
Two masses are placed on an airtrack and given initial velocities towards each other. Calculate the impulse acting on mass one during the collision
The bullet becomes embedded in the block. If the bullet-block system compresses the spring by a maximum of 88.0 cm, what was the speed of bullet at impact with the block.
When he was first thinking about relativity (and before he developed his theory), find the your friend's speed relative to your reference frame
A solid wheel (solid cylinder) with mass 2.5 kg and a radius of 0.50 meter starts rotating from rest and has a constant angular acceleration of 2.5 radians/second^2 Determine the torque required to produce this motion
Two identical, small insulating balls are suspended by separate 0.35-m threads that are attached to a common point on the ceiling, Determine the tension in the threads
A standing observer perceives a train whistle to have a frequency of 300 Hz. what is the frequency of the sound waves emitted from the train
A piano tuner plays an out of tune A note on his piano and then strikes his 440 Hz tuning fork. What was the frequency of the note before he loosened the string
A hypodermic syringe contains a medicine with the density of water. The barrel of the syringe has a cross-sectional area of 2.5 x10-5 m2.
A coil of wire has a resistance of 38.0 ? at 25° C and 43.7 ? at 52° C. What is the temperature coefficient of resistivity
If frame rate increases what happens to the PRF
A 60.0cm long hollow nichrome tube of inner diameter 2.20mm, What is the current in the tube
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