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A 12.7-kg block initially slides at 13.1 m/s on a flat rough surface and eventually stops. If the block cools to the ambient temperature, which is 26.1°C, what is the entropy change of the system?
question1itrsquos been a great day of new frictionless snow. julie starts at the top of the 60-degree slope. at the
A box of mass 15 kg is dragged by a 50 N horizontal force a distance of 10 m over a rough surface with the coefficient of friction = 0.14 the work done by friction force.
Two nonconservative forces are present: friction does -2.00 104 J of work on the car, and a chain mechanism does +3.00 104 J of work to help the car up a long climb. Illustrate what is the change in the car's kinetic energy, ΔKE = KEf - KE0, fro..
An 84.6-kg climber is scaling the vertical wall of a mountain. His safety rope is made of nylon that, How much is the rope stretched when it breaks his fall and momentarily brings him to rest
Consider an LC Circuit in which L = 500 mH & C = 0.100 microF. What is the resonance frequency
Astronomers discover an exoplanet (a planet of a star other than the Sun) that has an orbital period of 3.03 Earth years in its circular orbit around its sun, Find the radius of the exoplanet's orbit in meters
A simple fuel level gauge can use the dielectric constant of the fuel to indicate its level in a tank. For which fuel is this a more appropriate gauge
A 1.10 kg water balloon is shot straight up with an initial speed of 4.10 m/s. What is the kinetic energy of the balloon just as it is launched
A 62-kg water skier is being pulled by a nylon (Young's modulus 3.7 x 109N/m2) tow rope that is attached to a boat. What is the change in length of the rope when the skier has an acceleration whose magnitude is 0.49 m/s2
q1. a persons heart and head are 1.2m and 1.7m above the feet respectively. find out the potential energy associated
A critically damped simple harmonic oscillator starts at the origin at rest, and is subject to an additional force Fext = Fto/t. Find the subsequent motion
A 62.0kg skier is moving at 6.50m/s on a frictionless, horizontal snow-covered plateau when she encounters a rough patch 3.50m long. How fast is the skier moving when she gets to the bottom of the hill
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