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A vertical spring, k= 305N/m, vibrates with amplitude of 28cm when.26kg hangs from it. The mass passes through the equilibrium point, (y=0) withpositive velocity at t=0.
(a) What equation describes the motion as a function of time?
(b) At what times will the spring have its maximum and minimum extensions?
a carnot cycle operates between source and sink temperatures of 250c and -15c. if the system receives 90 kj from the
During an experiment you determine the cat off wavelength of a cathod ray tube to be λ0. What are the stopping voltage(potential) and electron velocity in terms of λ0 for second experiment
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you have a bag of n 800 special imported coffee beans that you are putting in cups to distribute to your friends. the
The box is open at the top and has edge length L = 66 cm. Find out (a) the x coordinate, (b) the y coordinate, and (c) the z coordinate of the center of mass of the box.
a battery of emf 10 v and internal resistance 3nbspomega is connected to a resistor. if the current in the circuit is
A 10 uF capacitor carries an initial charge of 80 uC. If a resistance of 25 omega is connected across it, what is the initial current in the resistor
Katie, a 30.0-kg child, climbs a tree a to rescue her cat who isafraid to jump 8.0m to the ground. How much work does Katie do inorder to reach the cat
The light emitted by a helium-neon laser has a wavelength of 632.8 nm in air. As the light travels from air into fused quartz, determine the wavelength in fused quartz
The centers of a 7.0kg lead ball and a 140g lead ball are separated by 13cm. What gravitational force does each exert on the other
On a hot summer day (30 degrees Celsius), a pesky little mosquito produced its warning sound near your ear. What is the frequency in Hertz of the sound wave
Two people carry a heavy electric motor by placing it on a light board 1.55 m long. One person lifts at one end with a force of 390 N, What is the weight of the motor
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