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A string on a string bass is tuned to vibrate at a fundamentalfrequency of 56.0 Hz. If the tensionin the string were increased by a factor of 3, what would be the new fundamental frequency?
A block of mass 10 kg lies to the left of a 5 kg block. The 10 kg block is pushed with a force of 30 Newtons at an angle of 30 degrees South of East. Determine the net acceleration of the system
A good baseball pitcher can throw a baseball toward home plate at 91 miles per hour with a spin of 1789 revolutions per minute. How many revolutions does baseball make on its way to home plate? For simplicity, assume that the 60.0 ft path is a straig..
An athlete needs to lose weight and decides to do it by "pumping iron." If the weight is lifted once every 1.90 s, how long does the task take (in hours)
Two point charges lie on the x axis. A charge of 6.2uC is at the origin, and a charge of -9.4uC is at x=10.0cm. What is the net electric field at x=+4.0cm
You are an astronaut (m = 100 kg) and travel to a planet that is the same radius and mass as the Earth, What is your apparent weight at the equator of this planet
An inclined plane is sliding, and accelerating, on a horizontal frictionless surface. What is minimum acceleration of the inclined plane
A 1.1 kg block of ice is initially at a temperature of -5°C. If 4.8 ? 105 J of heat are added to the ice, what is the final temperature of the resulting liquid water
Four point charges are arranged in a square with side length 1 meter. Charges qA and qD have charges of q= +1 uC, and charges qB and qC have charges of q= -1 uC. Point E exists at the center of the square.
The rms current in an ac circuit with a resistance of 130? is 0.70A. What is the maximum power consumed by this circuit
Metal sphere 1 has a positive charge of 8.00nC . Metal sphere 2, which is twice the diameter of sphere 1, What are the final charges on each sphere
The Bragg angle for a certain reflection from a powder specimen of copper is 47.75º at a temperature of 293 K and 46.60º at 1273 K. Find the coefficient of linear expansion of copper
The vector position of a 3.50g particle moving in the xy planevaries in the time according to r1 = (3i + 3j)t +2jt2. determine the net force exerted on the two particle system
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