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A monochromatic parallel beam of light of wavelength 633 nm is incident on totally reflecting plane mirror.angle of incidence is 60 degree. and number of photon striking per second is 1X10^19. calculate force exerted by light beam on mirror
A uniform drawbridge must be held at a 37 angle above the horizontal to allow ships to pass underneath. What is the angular speed of the drawbridge
A proton is moving parallel to a uniform electric field. The electric field accelerates the proton and increases its linear momentum to 3.00 10-23 kg·m/s from 1.30 10-23 kg·m/s in a time of 6.80 10-6 s. What is the magnitude of the electric field?
Use the free electron model to estimate the gap parameter ?0 and the transition temperature Tc for (a) aluminum (1.81 x 10^29 electrons/m3 ) and (b) zinc (1.31 x 10^29 electrons/m3 ).
A 6-g bullet is fired into a 1.2-kg pendulum of length 83 cm. The pendulum swings by 12 degrees. What was the initial speed of the bullet? Please explain!!
Suppose 2.5 cubic meter of oil is spilled into the ocean. Find the area of the resulting slick, assuming that it is one molecule thick
Two out-of-tune flutes play the same note. One produces a tone that has a frequency of 243 Hz, What is the frequency of the tuning fork
How far must the spring be compressed. A small remote-control car with a mass of 1.62 moves at a constant speed of = 12.0 in a vertical circle inside a hollow metal cylinder that has a radius of 5.
a block with a mass of 2.50kg is resting on a ramp. find the max static friction force that acts on the block.
A dog running in the +y-direction at 7.0 m/s hears its owner call from behind, Compute the dog's change in velocity
An air-track glider attached to a spring oscillates with a period of 1.50s . At t=0s the glider is 4.50cm left of the equilibrium position, obtain the phase constant
An alpha proton consisting of 2 protons and 2 neutrons (q = 0) is moved from a point 3nm due north of a carbon nucleus with 6 protons and 6 neutrons to a point 2nm due south of the carbon nucleus
Sam, whose mass is 74kg , straps on his skis and starts down a 44m -high, 20? frictionless slope. Use work and energy to find Sam's speed at the bottom
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