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An aluminum rod is16.5cm long at 20°C and has a mass of 350 g. If14000J of energy is added to the rod by heat, what is the change in length of the rod?
mm
A 13-kg block rests on a level floor. A 300-g glob of putty is thrown at the block so that the putty travels horizontally, hits the block, what is the initial speed of the putty
If you twirl a small 7.0-g wooden ball in a circle at 4.0 revolutions per second on a light 10-cm string, approximately how many units of angular momentum does it have
The average temperature in Gunnison for the first two months of the year are: 1) January (31 days) 10°F 2) February (28 days) 15° F. What are the total number of degree days for Gunnison over these two months?
a support cable runs from the top of the boom to the tractor. The angle between the support cable and the horizontal is 32°, and the angle between the boom and the horizontal is 48°.
Three moles of an ideal gas undergo a reversible isothermal compression at 21.5°C. During this compression, 1870 J of work is done on the gas. What is the change of entropy of the gas?
A roughly spherical volume of rock 2.1 km in radius is 30% denser than the surrounding rock, calculate the gravitational acceleration it produces at Earth's surface
Two uniform solid spheres have the same mass of 2.15 kg, but one has a radius of 0.213 m while the other has a radius of 0.867 m. What is the corresponding value of F for the larger sphere
The largest fusion bomb ever detonated (called the Tsar Bomba) was tested by the Soviet Union in 1961. If this bomb used the deuterium-deuterium fusion reaction, how many kilograms of deuterium were required
A cylinderical water tank of radius 10ft and height 30ft is half filled with water. How much work is essential to pump all of the water out through a hole in the top of tank.
One particle has a mass of 4.59 x 10-3 kg and a charge of +7.03 ?C. A second particle has a mass of 8.88 x 10-3 kg and the same charge. Find the initial separation between the particles
In a Compton scattering experiment, an x-ray photon scatters through an angle of 21.0° from a free electron that is initially at rest. The electron recoils with a speed of 2,520 km/s. Calculate the wavelength of the incident photon.
At the end of the trip she measures the pressure to be 3 105 Pa. Ignoring the expansion of the tires, find out the air temperature inside the tires at the end of the trip.
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