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A chain on a table is stretched out in a straight line perpendicular to the table's edge with one-fourth of the length L hanging over the side. Determine how much work is required to pull the hanging section of the chain back onto the table?
Two wires on a piano are the same length and are stretched to the same tension. Wire 1 vibrates at a frequency 1.5 times that of wire 2. Calculate the ratio of their masses (m1/m2).
q1. the longest string a thick metal wire on a particular piano is 3.0 m long and has a tension of 300.0 n. it vibrates
in a haynes- shockley experiment the distance between the cross r and a is d0.1m t0.25 milliseconds if the carriers are
a disoriented physics professor drives 3.33 north then 4.69 west and then 1.61 south.1-use components to find the
What is the resulting compressional force on the Earth. what is the acceleration of a rock at top of its trajectory when it has been thrown straight upward.
Two canoeists in identical canoes exert the same effortpaddling and hence maintain the same speed relative to the water. What is the speed of the water relative to shore
The mass of a copper atom is 1.54 10-25 kg, and the density of copper is 8 920 kg/m3. Find the edge dimension of each cube
A fan is spinning at 900 rpm. When its motor is turned off it makes 75 rev before coming to a stop. If the work down by dissipative forces is 44.4J, Find the moment of Inertia of the fan and the torque due to dissipative forces.
When red light in a vacuum is incident at the Brewster angle on a certain type of glass, the angle of refraction is 39.0°. What is the index of refraction of the glass
A horizontal wire of length 0.11 m, carrying a current of 3.0 A, is placed in a uniform external magnetic field. Determine the magnitude of the external magnetic field
What is instantaneous acceleration
A 55kg swimmer is standing on a stationary 210kg oating raft. Find the recoil velocity that the raft would have
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