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A 670-kg meteorite happens to be composed of aluminum. When it is far from the Earth, its temperature is - 15°C and it moves with a speed of 14.0 km/s relative to the Earth. As it crashes into the planet, assume that the resulting additional internal energy is shared equally between the meteor and the planet, and that all of the material of the meteor rises momentarily to the same final temperature. Find this temperature. Assume that the specific heat of liquid and of gaseous aluminum is 1170 J/kg· °C.
The depth of the ocean is sometimes measured in fathoms (1 fathom = 6 feet). Find the volume of water (in cubic meters) beneath this rectangle
A square coil, enclosing an area with sides 2.7 cm long, is wrapped with 2,461 turns of wire. What average voltage is induced in the coil
A 2.00 kg block is pushed against a spring with negligible mass and force constant k=400 N/m, compressing it 0.220m. When the block is released, it moves along a frictionless,
A man enters a tall tower, needing to know its height. He notes that a long pendulum extends from the ceiling almost to the floor and that its period is 24.0 s. How tall is the tower
A 90% efficient turbine operates between two reservoirs connected by a 200-m length of 40-cm-diameter cast iron pipe that transports 0.8 m3=s of 20-C water. Estimate the power output of the turbine if the elevation difference between the surfaces ..
a 20-kg mass is attached to a spring. if the frequency of the simple harmonic motion is 2pi cycles what is the spring
Calculate the Q-value of the alpha decay of 211Po. It was found that 211Po can follow an alpha decay to an meta state. The alpha energy in this decay is 7.275 MeV
question a 4.0-microc charge is situated at the origin of an xy-coordinate system. what is the potential difference
A computer to be used in a satellite must be able to withstand accelerations of up to 23 times the acceleration due to gravity. What is the minimum amplitude of vibration that must be used in this test
A toaster operating on 120 V uses a current of 15.0 A. What is the toaster's power consumption, what is the cost of using the toaster for 3.2 min
During Charlie's golf drive, the angular velocity of his club is zero at the top of the backswing and 20 rad/s, What is the linear velocity of the club head just before impact with the ball
The bird is again coasting along at 1.00 mph in an easterly direction except now the wind is gusting at an angle to the bird's velocity. What is the displacement and direction of the vector
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