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Question: In a science museum, a 140 kg brass pendulum bob swings at the end of a 14.6 m -long wire. The pendulum is started at exactly 8:00 a.m. every morning by pulling it 1.2 m to the side and releasing it. Because of its compact shape and smooth surface, the pendulum's damping constant is only 0.010kg/s.
At exactly 12:00 noon, how many oscillations will the pendulum have completed?
What is its amplitude at noon?
Find the velocity diagrams at the mean, hub and tip diameters of an axial flow water pump based upon the free-vortex design. The mean diameter velocity diagram has an axial inlet with a flow coefficient of 0.3 and a work coefficient if -0.208. The..
A 0.200 kg block is placed on a vertical spring (k = 5.00x10^3) and pushed downward, compressing the spring 0.100 m. As the block is free, it leaves the spring and continues to travel upward. What height above the point of release would block reac..
A 69.00 kg person on skis is going down a hill sloped at 30° from the horizontal. The coefficient of friction between the skis and the snow is 0.20. What would be magnitude of the acceleration.
Find the current through a loop needed to create a maximum torque of 10.3 N · m. The loop has 59 square turns that are 17.2 cm on a side and is in a uniform
question an electron moves in a 0.5nt b-field. if the radius of the circular orbit is 1cm what is its period angular
Plutonium has a half life of 2.4 × 104 years. How long does it take for 99% of the plutonium to decay, What is the binding energy of the 4He nucleus
An astronaut in space cannot use a scale or balance to weigh objects because there is no gravity. What is the mass of this canister
In the experiment to verify time dilation by ?ying the cesium clocks around the Earth, what is the order of the speed of the four clocks in a system ?xed at the center of the Earth, but not rotating?
A 0.413 kg block is attached to a horizontal spring that is at its equilibrium length, and whose force constant is 24.6 N/m. The block rests on a frictionless surface. A 0.0500 kg wad of putty is thrown horizontally at the block, hitting it with an i..
A skateboarder, starting from rest, rolls down a 13.9-m ramp. When she arrives at the bottom of the ramp her speed is 8.68 m/s. Decide the magnitude of her acceleration, assumed to be constant. If the ramp is inclined at 26.8 ° with respect to the gr..
Water pressure at the bottom of a closed 1-m-tall closed barrel is98 kPa. What is the pressure at the bottom of the barrel when a 5-mpipe filled with water is inserted into the top of the barrel?
A system consists of 2.6 mol of an ideal monatomic gas at 375 K. How much heat should be added to the system to quadruple its internal energy at constant pressure? How much heat should be added to the system to quadruple its internal energy at consta..
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