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A merry-go-round is accelerated uniformly from rest to an angular velocity of 5 rad/s in a period of 10sec. How many times does the merry-go-round make a complete revolution in this time?
A 5 litters cylinder contains oxygen at 20 C, and 101 kpa. if the temperature increases by 15 C, what is the final temperature of the gas?
A dock worker applies a constant horizontal force of 80.5 N to a block of ice on a smooth horizontal floor. What is the mass of the block of ice
A car starts a race on a circular track and completes the first three laps in a counterclockwise direction in 618 s, Obtain the car average angular velocity for first three laps
The max wavelength of light, which emits electrons is 460 nm. Calculate work function of sodium
A 71 kg skier encounters a dip in the snow's surface that has a circular cross section with a radius of curvature of 12 m. If the skier's speed at point A is 7.0m/s , what is the normal force exerted by the snow on the skier at point B? Ignore fricti..
Calculate the radius of an electron's orbit when it moves perpendicular to a magnetic field of 0.52 T with a speed of 6.15 x 105 m/s
A wedge of mass m=36.1 kg is located on a plane that is inclined by an angle ?=21.3 degrees with respect to the horizontal. A force F=302.3 N in the horizontal direction pushes on the wedge. The coefficient of kinetic friction between the wedge and t..
A electric model train travels at 34.7 cm/s around a circular track of radius 1.61 m. Find the train's period of revolution
A sound wave from a siren has an intensity of 82.2 W/m2 at a certain point, Obtain the intensity level of the sound wave due to the ambulance
The radius of the neutron is 1.2 × 10-15m and so this seems a reasonable estimate for the radius of the orbits. If the up quark moves around in one direction, and the down quarks move in the opposite direction, all with the same speed v how fast w..
A toy car runs off the edge of the table that is 1.6405 m high. The car lands 0.3311 m from the base of the table how long does it take for the car to fall? The acceleration by reason of gravity is 9.80 m/s2.
A particle leaves the origin with a speed of1 × 106 m/s at 30? to the x axis. It moves in a constant electric field E = Eyˆj. Find Ey such that the particle will cross the x axis at x = 2.5 cm if the particle is an electron. The fundamental charge is..
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