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The 20-cm-long wrench in the figure swings on its hook with a period of 0.80s. When the wrench hangs from a spring of spring constant 340N/m , it stretches the spring 2.9cm
What is the moment of inertia about the hook?
At the top a giant 360 swing on the high bar, a 50 kg gymnast has a velocity of 1 m/s and he is 3.5 m about the ground, What is the gymnast's gravitational potential energy
Four objects are situated along the x axis as follows: a 1.70kg object is at -0.9m, a 1.60kg object is at 0.2m, a 2.4-kg object is at the origin, and a 2.50kg object is at -1.10m.
Triply charged uranium-235 and uranium-238 ions are being separated in a mass spectrometer. What is the separation between their paths in meters when they hit a target after traversing a semicircle
what are the magnitude and direction of its acceleration. find out the magnitude of the charge on the moving particle.
create destructive interference between the speakers. Friction provides the force required for a car to travel around a flat, circular race track.
A 65.0 kg person jumps from rest off a 3.19 m-high tower straight down into the water. Determine the magnitude of the average force that the water exerts on the diver
What is the linear speed of the phonograph needle
lady ate a whole medium size pizza storing up 120 food Calories. This energy is used to heat up 2 liters of water from a certain initial temperature to a final temperature of 80 deg.C, what was the initial temperature of the water?
An electron moves with speed 700 m/s. Entered uniform E and B field on straight path. E points down and into page. E B and v are perpendicular
Light of a wavelength 450 nm is incident on a sodium emitter in a photoelectric effect apparatus. What is the cutoff frequency for the emitter
A satellite strikes the International Space Station traveling at a speed of 14.70 miles/ Second relative to the station. calculate the energy released by the collision
White light containing wavelengths from 405 nm to 760 nm falls on a grating with 8000 lines/cm. How wide is the first-order spectrum on a screen 2.20m away.
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