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A string with a mass m = 5.00 g and a length L = 9.00 m has one end attached to a wall; the other end is draped over a small, fixed pulley a distance d = 8.00m from the wall and attached to a hanging object with a mass M = 8.50 kg as in the figure below. If the horizontal part of the string is plucked, what is the fundamental frequency of its vibration?
Suppose you see two main-sequence stars of the same spectral type. Star 1 is dimmer in apparent brightness than Star 2 by a factor of 100. What can you conclude? (Overlook any effects that might be caused by interstellar dust and gas.)
The wavelength of an ocean wave
A satellite in a circular orbit around the earth with a radius 1.019 times the mean radius of the earth is hit by an incoming meteorite. Calculate the amount of that work converted to heat
A 2.0 kg mass is attached to the end of horizontal spring (k = 50 N/m), What is the maximum speed of the mass
an electric transformer is in a cylinderical tank 60cm in diameter and 1 meter high, with a flat top and bottom. how many degrees will the tanks surface rise above room temperature
A 1.50cm diameter parallel plate capacitor with a spacing of 0.600mm is charged to 400V. What is the total energy stored in the electric field
The pressure exerted by a phonograph needle on a record is surprisingly large. what pressure is exerted on the record in N/m2
Three 45-? lightbulbs and three 70-? lightbulbs are connected in series. What is the total resistance of the circuit
A parallel-plate capacitor has 3.95 cm2 plates that are separated by 4.29 mm with air between them. how much energy does it store
A model rocket fired vertically from the ground ascends with a vertical acceleration of 3.2 m/s2 for 5.2 s. What is the maximum altitude reached
At the start of a race, a four-man bobsled team pushes their sled as fast as they can along a 50 m flat starting stretch. find the speed of the sled right before the team jumps on the sled
Compute the momentum of the bullet
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