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A pendulum sweeps out an angle of 12.5 during its motion. How far does the pendulum bob (the ball at the end of the rope) travel in one complete cycle of motion if its length is 12.3 cm?
Hydrogenic atoms in an ultraviolet light fall from energy quantum state n = 9 to state n = 2 while releasing ultraviolet photons. How many photons are being released per second
A crane is being used to lift a container onto a cargo ship. What is the maximum power the crane must provide to the container during lift
A cylinderical wooden log rolls (without slipping) down a small ramp. The log has a radius of 15 cm, a length of 2.0 m, and a mass of 78 kg. What is the log's total kinetic energy at the bottom of the ramp
A certain electric motor draws a current of 46Awhen connected to 120 V. What is the motor's power consumption
Two identical blocks are stacked one on top of the other. What is the maximum horizontal force that can be applied to the lower block without the upper block slipping
Measurements of the radioactivity of a certain isotope tell you that the decay rate decreases from 8305decays per minute, What is the half-life T1/2 of this isotope
A 70.0cm wire of mass 8.20g is tied at both ends and adjusted to a tension of 41.0N. When it is vibrating in its second overtone, find the frequency at which it is vibrating
A red ball is thrown down with an initial speed of 1.1 m/s from a height of 29.0 meters above the ground. Then, 0.6 seconds after the red ball is thrown, What is the maximum height the blue ball reaches
the frequency of a microwave signal is 9.76 ghz. what is its wavelength in
A 0.123-kg ball is dropped from a height of 1.19 m and lands on a light (approximately massless) cup mounted on top of a light, What is the required spring constant of the spring
If a feather is dropped on the moon falls 81.7cm in one second, calculate the acceleration due to gravity on the moon
What is the annual petroleum consumption of the United States, and where does this petroleum originate? Include all sources supplying a significant fraction of the US consumption (5% or more).
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