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A cylinder containing an ideal gas has a volume of 2.0m3 and a pressure of 1.0*105 Pa at a tempof 300 K. The cylinder is placed against a metal block thatis maintained at 900 K and the gas expands as the pressure remainsconstant until the temp of the gas reaches 900K. The changein internal energy of the gas is +6.0*105 J. How much heat did the gas absorb?
Microbiologists measure total current due to potassium ions (K +) moving through a cell membrane of a rock crab neuron cell to be 35 nA. How many ions pass through the membrane each second
two plates of radius R are separated by a distance 2h.the top plate rotates with velocity w. find the velocity as a function of radius r and and height z
Assume that light of wavelength 550 nm is being observed. Also suppose that diffraction effects, rather than atmospheric turbulence, limit the resolving power of the telescope. Find the greatest distance that these stars might be from the earth.
Two balls of mud collide head-on in a perfect inelastic Collision. Suppose m1=0.5kg, m2 = 0.25kg, v1i = 4 m/s and V2i = -3 m/s, What is the change in kinetic energy in this collision
A 1.90 m length of wire is held in an east-west direction and moves horizontally to the north with a speed of 15.2 m/s. Calculate the induced emf between the ends of the wire
At t = 0 a grinding wheel has an angular velocity of 25.0 rad/s. It has a constant angular acceleration of 21.0 rad/s2 until a circuit breaker trips at t = 1.81 s. What was its acceleration as it slowed down
light ray enters the atmosphere of the Earth and descends vertically to the surface a distance h = 92 km below. The index of refraction where the light enters the atmosphere is 1.00, and it increases linearly with distance to have the value n = 1...
in a photoelectric effect experiment, the cathode made of chromium (work function = 4.5 eV) is irradiated with ultraviolet light of wavelength 22 nm. what is the stopping potential
A 0.33 kg softball has a velocity of 19 m/s at an angle of 34° below the horizontal just before making contact with the bat. What is the magnitude of the change in momentum of the ball
a railroad car o.f mass 2.25 x 10^4 kg is traveling east 5.50 m/s and collides with a railroad car of mass 3.00 x 10^4 kg traveling west 1.50 m/s, find the velocity of the railroad cars
A child in danger of drowning in a river is being carried downstream by a current that has a speed of 2.75 km/hr. The child is 0.560 km from shore and 0.750 km upstream of a boat landing when a rescue boat sets out. If the boat proceeds at its maximu..
An 271 N object is moving to right when forces act on it Two forces act in + y direction (up) 32 N and 17 N One force acts in down , -y, direction 20N Two forces act to right , +x, direction 18 N and 26N, Determine the net force on the particle
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