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A sample of helium-4 behaves as an ideal gas as it isheated at constant pressure from 294 K to 404 K. If 33 J of work isdone by the gas during this process, what is the mass of helium present?
Consider two long straight parallel wires, each carrying 5 amps. These wires are 0.04 m apart. What is the magnitude of the magnetic field half way between these two wires
A 7kg squirrel walks to the end of a 15 kg board resting on two saw horses. When the squirrel is at the 1m position away from the right end of board, How long is the board
A block of mass 1.60 kg is connected to a spring of spring constant 149 N/m which is then set into oscillation on a surface with a small coefficient of kinetic friction. find the total energy was lost in the first full oscillation
After the Sun exhausts its nuclear fuel, its ultimate fate will be to collapse to a white dwarf state. Calculate the average density of the white dwarf
Big yellow fishing swimming at 2.0m/s swallows little green fish at rest. Big yellow fish is 3 times as massive as little green fish. What fraction of big yellow fish's initial kinetic energy was lost
Calculate the wavelength ?1 for gamma rays of frequency f1 = 6.40×10^-14 Now express this gamma-ray wavelength in nanometers
A child suddenly runs into the street. If it takes the driver 0.80 s to react and apply the brakes, explain how many meters will the car have moved before it begins to slow down?
A 1.30 kg mass on a spring oscillates horizontally with little friction according to the following equation: x=0.0500cos(2.90t), Find the maximum energy stored in the spring during an oscillation
Assume that you need to get a heavy couch into the bed of a pickup truck. You know the bed of the truck is at the height of 1.00 and you require a ramp that makes an angle of 40 with the ground if you are to be able to push the couch.
What is the charge density on the surface. suppose that air resistance can be neglected.
After the horizontal projectile leaves the gun, what are the accelerations in the x and y directions
A block of mass m1=3.20 kg on a frictionless plane inclined at angle 30 degrees is connected by a massless cord over a massless, Calculate the acceleration of each block
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