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Problem: The volume control on a stereo is designed so that three clicks of the dial increase the output by 10 dB.
Part 1: How many clicks are required to increase the power output of the loudspeakers by a factor of 100?
Rework your solution from the beginning and check each step carefully.
What will be the resulting speed of the boat. A 74 kg fireman slides down a 4-m pole by applying a frictional force of 384 N against the pole with his hands. If he slides from rest, how fast is he moving once he reaches ground.
A 46.0 {\rm kg} crate, starting from rest, is pulled across a floor with a constant horizontal force of 250 {\rm N}. For the first 11.5 {\rm m} the floor is frictionless, and for the next12.0 {\rm m} the coefficient of friction is 0.22. What is the f..
A capacitor is discharged during a 90.0 resistor. The discharge current decreases to 22.0 percent of its initial value in 3.00ms .What is the value of the capacitor? Express your answer with the appropriate units.
A wire 3.00 m long and 0.450 mm2 in cross-sectionalarea has a resistance of 38 at 20°C. If its resistance increasesto 38.3 at 28.0°C, what is the temperature coefficient of resistivity?
A spring is compressed by .02 m ad launches a block up an incline (ignore friction). what is the maximum distance will it travel
A generator has a square coil consisting of 500 turns. The coil rotates at 82 rad/s in a 0.49 T magnetic field. What is the length of one side of the coil
A certain ship is shaped like a box, with vertical sides and a flat bottom. When the ship sails with cargo in the ocean (saltwater), Find the mass of the ship without the cargo
A 130kg mail bag hangs by a vertical rope 3.3m long. As the bag is moved to this position, how much work is done by the worker
A steel section of the Alaskan pipeline had a length of 65 m and a temperature of 12°C when it was installed. What is its change in length when the temperature drops to a frigid -38°C?
The terminals of a 12-V battery are connected to parallel plates. What plate separation would produce an electric field between the plates of 1400 N/C
A 54-kg skier coasts up a snow-covered hill that makes an angle of 25° with the horizontal. Find the work done by the kinetic frictional force that acts on the skis
A small cylinder, with mass M, radius R=0.1 m,and moment of inertia 1/2 MR2, rolls up along acurved surface with an initial speed V=4 m/s. What is the cylinder's initial angular speed
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