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An elevator contains two masses: M1 = 2.0 kg is attached by a string (string 1) to the ceiling of the elevator, and M2 = 4.0 kg is attached by a similar string (string 2) to the bottom of mass 1.
Find the tension in string 1 (T1) if the elevator is moving upward at a constant velocity of v = 3.0 m/s.
Find T1 if the elevator is accelerating upward with an acceleration of a = 3.0 m/s2
What is the tension in string 2 (T2) if string 1 suddenly breaks?
Find (a) the ratio M/m; (b) the velocity of centre of mass; (c) the total kinetic energy of the two particles in the centre of mass; and (d) the final kinetic energy of m in the laboratory system.
A speedboat starts from rest at 2.01m/s2 for 7.00s. At the end of this time, the boat continues for an additional6.00 s with an acceleration of +.518 m/s2. Followingthis, the boat accelerates at -1.49m/s2 for 8.00s.
A copper block is removed from a 310 C oven and dropped into 1.10 kg of water at 20.5 C. What is the mass of the copper block
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A 50 g ball isreleased from rest 1.0 m above the bottom of the track shown in the figure . It rolls down a straight 30 degree, segment, then back up a parabolic segment whose shape is given byy=1/4x2, where x and y are in meters.
Mechanical Advantage The pulley system shown in the figure is used to lift a 52- crate. Note that one chain connects the upper pulley to the ceiling and a second chain connects the lower pulley to the crate. Assume the masses of the chains, pulley..
a bowling ball mass7.2kg radius0.11m and a billiard ball mass0.38kg radius0.028m may each be treated as uniform
The terminal voltage of a certain battery is measured with the battery disconnected and is found to be 6.18 V. The internal resistance of the battery is1.06 Ω. Find the voltage across thebattery terminals when there is a current of 1.92 A from the ne..
While waiting for your plane to take off, you suspend your keys from a thread and set the resulting pendulum oscillating. It completes exactly 86 cycles in 1 minute. You repeat the experiment as the plane accelerates down the runway, and now discover..
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