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A crate of mass 2000 kg is hanging from a crane at the end of a cable 12 m long. If we attach a horizontal rope to this crate and slowly apply a pull of 1800 N, what angle will the cable finally create with the vertical?
The most abundant isotope of lithium, Li-7, contains three protons and four neutrons and has a mass of 7.01600 u. What is the mass defect for this nucleus in atomic mass units
A block of ice of mass 0.4 kg and initial temperature T = 0 oC is placed in a sealed insulated container full of Helium gas, What is the mass of the liquid water
An 8.0-kg block is set moving with an initial speed of 6.0 m/s on a rough horizontal surface. how far does the block travel before it stops
a square plate of edge length 12.0 cm and negligible thickness has a total charge of 5.80 x 10-6 c. estimate the
An artillery shell accelerates in the barrel of a gun with an acceleration of 10,000 m/s2 for 0.04 second, Find the highest the shell will go after leaving the barrel
7.5 mol of helium are in a 18 L cylinder. The pressure gauge on the cylinder reads 67psi, What are the temperature of the gas in Celsius and the average kinetic energy of a helium atom
Two parallel plate capacitors of area A = .002m^2 each, and plates separations of 5.00 mm, 8.85mm and are connected in parallel and then connected to a 120 volts battery. Find the total energy stored in the capacitors
In a local bar, a customer slides an empty beer mug down the counter for a refill, With what velocity did the mug leave the counter
A loudspeaker sounds a 600 Hz tone. Find the difference in the wavelength of the sound waves produced in air at -5°C and at 36°C
A 250 N beam hangs from a cable. The beam moves at a constant velocity. What is the force on the cable
A classroom slide projector projects an enlarged (50 times taller) image of a 24mm high photographic film onto a screen located 10 meters from the projector. What focal length lens (cm) does the slide projector require to produce a sharply focus i..
A meter stick is hinged at its lower end and allowed to fall from a vertical postion. iof its moment of inertia is Ml2/3 with what angular velocity does it hit the table
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