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Q. If an object on a horizontal frictionless surface is attached to a spring, displaced, and after that free, it oscillates. Suppose it is displaced 0.130 from its equilibrium position and free with zero initial speed. After 0.800, its displacement is found to be 0.13 on the opposite side and it has passed the equilibrium position once throughout this interval.
-Determine amplitude-determine the period of motion-determine the frequency of motion
Spider-Man attempts to save passengers on an out-of-control train using his web-slinging power. If the train (m = 137,000 kg) was at first travelling at 33m/s and he needs to stop it within 46 s, what is the magnitude of force he must provide.
Would a plucked guitar sting vibrate for a longer time or a shorter time if the instrument had no sounding board? explain.
A boy coasts down a hill on a sled, reaching a level surface at the bottom with the speed of 8.4 m/s. If the coefficient of friction between sled's runners and snow is 0.040.
The third floor of a house is 10.00 m above street level. How much work is required to move a 170kg refrigerator to the third floor.
What is the Acceleration of an object moving on a circular track
Find out the acceleration of the sled and child
The two liquids do not mix. What is the difference in height between the top surface of glycerine and top surface of the alcohol.
A gymnast of mass 55.0 hangs from a vertical rope attached to the ceiling. You can ignore the weight of the rope and assume that the rope does not stretch. Use the value for the acceleration of gravity.
Compute magnitude of the average emf
In Millikan's experiment, an oil drop of radius 1.85 μm and density 0.852 g/cm3 is suspended in chamber C whilst a downward electric field of 0.62 × 10^5 N/C is applied. Find the charge on the drop, in terms of e.
a loaded cart has a total mass of 227kg.if a 312n force acting at an angle of 30degree to the ground is applied. how much work is done in moving the cart 15meters?
250 kg ball is dropped to the floor from a height of 1.0 m and upon rebounding, reaches a height of .60 m. What is the impulse delivered to the ball by the floor?
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