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A 20 centimeter long and 170 gram rod is pivoted at one end. A 23 centimeter ball of clay is stuck on the other end.
Find the period if the rod and clay swing as a pendulum?
A 300 kg elevator is being pulled upwards by a steel cable at a constant velocity. What is the net force on the elevator
Monochromatic light is beamed into a michelson interferometer. The movable mirror is displaced 0.36 nm, causing the central spot in the interferometer pattern to change from bright to dark and back to bright 1829 times. Determine the wavelength of..
q1. charge is scattered uniformly throughout a long cylindrical shell of inner radius r and out radius 2r. at what
A person swimming 0.80 m below the surface of the water in a swimming pool looks at the diving board that is directly overhead, What is the actual height of the diving board
A person in an elevator is holding a 25 kg block by a cord rated to withstand a tension of 335 N. Starting from rest, the elevator begins to move upwards at a constant acceleration and the cord holding the block breaks. What was the least accelera..
A spring has a spring stiffness constant , k, of 440 N/m. How much must the spring be stretched to store 25 J of potential energy. Please tell me the formula and how you arrived at your answer.
a gymnast with mass m1 46 kg is on a balance beam that sits on but is not attached to two supports. the beam has a mass
A simple Atwood’s machine uses a massless pulley and two masses m1 and m2. Starting from rest, the speed of the two masses is 8.4 m/s at the end of 7.2 s. At that time, the kinetic energy of the system is 62 J and each mass has moved a distance of 30..
You have a concave spherical mirror with a 13.3-cm radius of curvature. You place an object on the mirror's axis, How far is the object's image from the mirror
A rocket is fired with an initial velocity of 3m/s at an angleof 35 degrees to the horizontal. What is the initial vertical componet of velocity
The angular momentum of a flywheel having a rotational inertia of 0.140 kg m2 about its axis decreases from 3.40 to 0.90 kg m2/s in 2.20 s. What is the average power of the flywheel
A 2.9-kg box is sliding along a frictionless horizontal surface with a speed of 1.8 m/s when it encounters a spring. Determine the initial speed the box would need in order to compress the spring by 1.2 cm
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