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A mass of 0.450 kg rotates at constant speed with a period of 1.45 s at a radius of R 0.140 m . What is the rotation period for a mass of 0.550kg at the same radius
Two objects with masses of 2.10 kg and 6.80 kg are connected by a light string that passes over a frictionless pulley. (a) Determine the tension in the string.
It collides with a 10,000 kg railway car resting at the bottom of the track with its brakes off. The two cars couple together and roll up the track to a height of h. find out h.
Boat A negotiates a curve whose radius is 370 m. Boat B negotiates a curve whose radius is 120 m. Each boat experiences the similar centripetal acceleration. What is the ratio of speed of boat A to that of boat B.
The heat of vaporization of ethyl alcohol is about 200cal/g. If 1.30 kg of it were allowed to vaporize in a refrigerator, how various grams of ice would be formed from 0°C water.
One of the fragments falls straight downward as though it had been released from rest. Explain how far from the gun does the other fragment land
How much heat must be removed from 0.40 kg of water at 0 degrees C to make ice cubes at 0 degrees C?
A bucket filled with water has a mass of 54 kg and is hanging from a rope that is wound around .050 m radius stationary cylinder. if the cylinder does not rotate and bucket hangs straight down, what is the magnitude of the torque the bucket produc..
The volume control on a surround-sound amplifier is adjusted so the sound intensity level at the listening position increases from 23 to 61 dB
Let us model the electric behavior of such a molecule by a pair of ±1.60 × 10-19-C charges connected by a spring with force constant 8.29 × 10-4 N/m, Find the charge separation distance in an electric field of 6.41 × 105 N/C
To stretch a spring 2.00 cm from its unstretched length, 15.0 J of work must be done, What is the force constant of this spring
A swimming pool has dimensions 28m 11m and a flat bottom. The pool is filled to a depth of 2.30 m with fresh water.
1. A modern-day zeppelin holds 8,280 m3 of helium, Compute its maximum payload at sea level
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