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A standard 1 kilogram weight is a cylinder 44.0 mm in height and 40.0 mm in diameter. What is the density of the material?
kg/m3
A Carnot engine performs work at the rate of 380 kW when using 730 kcal of heat per second. If the temperature of the heat source is 560 C, at what temperature is the waste heat exhausted.
A space station is constructed in the shape of a wheel 25 in diameter, with essentially all of its 5.10×10^5 mass at the rim.
the lowest pressure attained in a "vacuum" in a laboratory on the earth is 1X10^-17 atm at a termperature of 4.1 K. what is the number of molecules per cubic centimeter in this vacuum
At the end of three months, the spot rate is $1.37 per euro, and Quality delivers the merchandise, collecting 400,000 Euros. Illustrate what are the effects on net income from these transactions?
You push with a 20 N horizontal force on a 2 kg mass resting on a horizontal suface against a horizonatal friction forces of 12N. What is the accerlation.
A fireman 52 m away from a burning building directs a stream of water from a ground-level fire hose at an angle of 32° above the horizontal.
At sea level, a pressure gauge on a closed rigid tank reads 30.0 psi. What is the gauge pressure (in psi) for the tank in the new place
In a photoelectric effect experiment, a metal sample is illuminated by 10.0 mW of ultraviolet light of wavelength 240 nm. What is the longest wavelength of light that can knock electrons out of this metal
You walk from your house 0.25 miles West to Fred's house, What is your displacement from your initial position
A particle of mass 7.22 x 10^-27 kg, moving at 7.06 x 10^5 m/s, strike an identical particle which is initially at rest. What are the final speeds of the particles
A laser used in eye surgery emits a 3.08 mJ pulse in 1.04 ns, focused to a spot 32.4 um in diameter on the retina. Calculate (in SI units) the power per unit area at the retina
If your roommate turns up the radio, increasing the sound level from 70 dB to 82 dB, what is the factor by which the intensity (in W/m^2) increases
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