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A surfer is catching a wave. Suppose she starts at the top ofthe wave with a speed of 1.4 m/s and movesdown the wave until her speed increases to 9.5 m/s. The drop in her vertical height is2.7 m. If her mass is 59 kg, how much work is done by the (nonconservative)force of the wave?
Suppose the pressure of the gas equals to p=aV^2, where a is constant. Find the heat transfer to the gas during this process if this is a reversible change.
n air-filled spherical capacitor is constructed with inner and outer shell radii of 7.00 and 14.0 cm, respectively. Calculate the capacitance of the device
A car is traveling along a straight road at a velocity of +34.0 m/s when its engine cuts out. Find the velocity of the car at the end of the initial ten-second interval
A bicyclist is coasting down a hill with a slope of 8 deg into a head wind of 5 m/sec (measured relative to the ground). The bicycle + rider mass is 80 kg and the coefficient of rolling friction is 0.02. Assuming that the frontal area is about 0.5 m2..
A girl delivering newspapers covers her route by traveling 7.00 blocks west, 4.00 blocks north, and then 3.00 blocks east. What is her resultant displacement
The robot HooRU is lost in space, floating around aimlessly, and radiates heat into the depths of the cosmos at the rate of 12.9 W. What is HooRU's temperature
A solid cylinder is rolled down a ramp. They cylinder starts 0.29 m above the level surface below. If it starts at rest, what is the speed of the center of mass as it reaches the level surface
A tennis player standing 12.6 m from the net hits the ball at 2.79° above the horizontal. how fast was the ball moving when it left the racket
To complete your master's degree in physics, your advisor has you design a small, linear accelerator capable of emitting protons, What the average power must be delivered to the stream of protons
An oil-filled capacitor has square parallel plates 25cm on a side, separated by 0.50mm. Find the dielectric constant of the oil
Suppose that the aluminum cup inside a calorimeter has a mass of 48 g and contains 84 g of water. Both the cup and water are initially at a temperature of 5.6 degrees C, what is your best estimate of the specific heat of the aluminum
If you move towards a pipe at a speed of 3.3m/s, what frequency will you hear from this organ pipe? speed of sound is 330m/s
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