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A loudspeaker produces a musical sound by means of the oscillation of a diaphragm whose amplitude is limited to 2.0 μm. At what frequency (in Hz) is the magnitude a of the diaphragm's acceleration equal to g?
Two physical pendulums (not simple pendulums) are made from meter sticks that are suspended from the ceiling at one end. Determine the period of the metal pendulum
A ball rolls off the edge of a horizontal tabletop, 1.70 m high. It strikes the floor at a point 1.49 m horizontally away from the edge of the table. What was its speed at the instant it left the table
A circular conducting loop of radius 11.0 cm is located in a region of homogeneous magnetic field of magnitude 0.300 T pointing perpendicular to the plane of the loop. Calculate the magnitude of the induced emf in the loop
A block of mass 12-kg slides from rest down a frictionless 34° incline and is stopped by a strong spring with k = 1.0x 10^4 N/m. The block slides 3 m from the point of release to the point where it comes to rest against the spring.
The energy flow per unit time per unit area (S) of an electromagnetic wave has an average value of 601 mW/ m2
A person walks first at a constant speed of 4.80 m/s along a straight line from point to point and then back along the line from to at a constant speed of 2.75 m/s. What is her average velocity over the entire trip
An "energy bar" contains 21g of carbohydrates. If the energy bar was his only fuel, how far could a 68 kg person walk at 5km/hr? Express your answer using two significant figures.
A string on a guitar vibrates at 420 Hz. If the tension on the string is 102 N, what is the mass of the string if the portion that vibrates is 63.7 cm long
Four protons, each with charge +e, are fixed at the corners of a square of side length a, Determine magnitude and direction of the electric field E
A 3.67 g bullet is fired vertically into a 1.61 kg block of wood. The bullet gets stuck in the block, What was the initial velocity of the bullet
You have decided to make a large cooler to store meat. Calculate the net rate of heat flow per second out of the cooler if the interior temperature is 5 C and the exterior temperature can be 45 C
Below are birds-eye views of six identical toy cars moving to the right at 2? Various forces act on the cars with magnitudes and directions indicated below. All forces act in the horizontal plane and are either equivalent or at 45 or 90 degrees to ca..
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