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Derive the equation for centripetal acceleration from the position equations x=Rcostheta and y=Rsin(theta).
Suppose that a particle of mass 0.24 kg acted upon by a spring undergoes simple harmonic motion. What is the total energy of this motion
in lab test on a 9.25cm cube of a certain material a force of 1375 n at 8.50 degree to the cube is in the bottom of the
The drawing shows a square, each side of which has a length of L = 0.25 m. Find the electric potential energy of a third charge
A bicyclist makes a trip that consists of three parts, each in the same direction (due north) along a straight road. What is the average speed of the bicyclist for the trip
a scientific instrument weighs 85.2 N in the Earth's surface and weighs 32.2 N in the surface of mercury. What is the acceleration of gravity on Mercury
a ships anchor chain is wrapped around a hollow steel drum of mass m 500 kg and radius r 0.5m. the drum is located on
A molecule of DNA (deoxyribonucleic acid) is 2.14 µm long. The ends of the molecule become singly ionized: negative on one end, positive on the other. Determine the effective spring constant of the molecule
In a local bar, a customer slides an empty beer mug down the counter for a refill. The height of the counter is h. With what velocity did the mug leave the counter
an automobile tire is pumped up to a gauge pressure of 2.0 x 105 pa when the temperature is 27 degc. what is its gauge
A 75 kilogram astronaut is space walking outside the space shuttle and pushes a 400 kilogram satellite away from the shuttle at 1.5 m/s. Find the resulting speed of the astronaut back towards the shuttle
The moon orbits the earth at a distance of 3.85 x 108 m. Assume that this distance is between the centers of the earth, Find the period for the moon's motion around the earth
A photon with a 300 nm wavelength Compton scatters off a target and deflects by an angle of 25 from the incident direction. What is the wavelength of the photon after the Compton scatter
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