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Q. A mass m is gently placed on the end of a freely hanging spring. The mass then falls 32.4 cm before it stops and begins to rise. What is the frequency of the oscillation?
Q. For safety in climbing, a mountaineer uses a nylon rope that is 60 m long and 1.0 cm in diameter. When supporting an 88 kg climber, the rope elongates 1.80 m. Find its Young's modulus.
A diving board of length 3 is supported at a point 1 from the end, and a diver weighing 480 stands at the free end. The diving board is of uniform cross section and weighs 295.
When the skateboarder reaches the highest point, how far is this point horizontally from the end of ramp.
A 3.60 long, 420 steel beams extends horizontally from the point where it has been bolted to the framework of the new building under construction. A 72.0 construction worker stands at the far end of the beam. What is the magnitude of torque about the..
Two charges q1 = 1.1 10-8 C and q2 = -4.8q1 are placed 50 cm apart. Find the point along the straight line passing by the two charges at which the electric field is zero, as measured from q1.
Suppose a patient having an MRI is immersed in a 3.0 T field along the axis of his body. He then quickly tips his head to the side, toward his right shoulder, tipping his head by 30 degrees in the rather short time of 0.15 s.
What work is done by the electric forc. begin from rest, a boat increases its speed to 4.00 m/s with constant acceleration. What is the boat's average speed.
A tuning fork with a frequency of 356 Hz is found to cause resonance in a closed column of air at 41 cm and at 65 cm. Find the velocity of sound produced by the tuning fork.
An aquarium contains a 5-cm layer of water (n = 1.333) floating on top of carbon tetrachloride (n = 1.461). If an angle of incidence into water from the carbon tetrachloride is 20, what is the angle of refraction into the air.
What is the magnitude of vertical component of its velocity as it strikes the ground.
An object of mass "m" is thrown up an inclined plane of angle "theta" with an initial velocity "v knot". If the motion is resisted by retarding force Fr=-kv (where k is a force coefficient and v the velocity of the object.)
A state highway patrol car radar unit uses a frequency of 9 x 10^9. what frequency difference will the unit detect from a car receding at a speed of 46.5 m/s from stationary patrol car.
Find the gage pressure at the center of pipe A in pounds per square inch and in kilopascals.
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