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A thin rod of length 0.75 meter and mass 0.46 kilogram is suspended freely from one end. It is pulled to one side and then allowed to swing like a pendulum, passing through its lowest position with angular speed 3.7rad/s. Ignore air resistance and friction.
(a) Evaluate the rod kinetic energy at its lowest position.
J
(b) Determine how far above that position the center of mass rises.
m
Waly Whacko claims to have invented a heat engine that will revolutionize industry. What error did he made in his choice of temperature scale
An oscillator with a natural frequency of 480 Hz is driven by a 540 Hz sinusoidal signal. At what frequency does it oscillate
A small spinning asteroid is in a circular orbit around a star, much like the earth's motion around our sun. calculate the equilibrium temperature of the asteroid
A decade before Einstein published his theory of relativity, J.J. Thomson proposed that the electron might consist of small parts, Find the total electric potential energy of this arrangement
Sam, whose mass is 74kg , straps on his skis and starts down a 44m -high, 20? frictionless slope. Use work and energy to find Sam's speed at the bottom
The light shining on a diffraction grating has a wavelength of 480 nm (in vacuum). The grating produces a second-order bright fringe whose position is defined by an angle of 9.38°. How many lines per centimeter does the grating have?
A cylinder with a height of 1.30 and an inside diameter of 0.110 is used to hold propane gas (molar mass 44.1 ) for use in a barbecue. It is initially filled with gas until the gauge pressure reads 1.80×106 and the temperature is 22.0. The temperatur..
question1one of the ways that a forensic scientist can figure out the make and model of a car from a hit and run
A system does 136 J of work on its environment and gains 66 J of heat in the process. compute the change in the internal energy of the system
A 747 airliner reaches its takeoff speed of 187 mi/h in 31.4s. What is the magnitude of its average acceleration.
An archaeologist found a fragment bone of animal. It has an activity per gram of carbon that is 25% that of an equivalent sample of carbon from a similar living animal
Find the magnitude of total displacement of the object
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