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A 60.0kg skier traveling at 20.0m/s reaches the foot of a steady upward 20.0 degree incline and glides 35.0m along this slope before coming to rest. Calculate the coefficient of friction along this slope?
a 3.00 kg block starts from rest at the top of a 30 degree incline and slides 2.00 meters down the incline in 1.50
The electric field in a particular space is = (x + 1.9) N/C with x in meters. Consider a cylindrical Gaussian surface of radius 22 cm that is coaxial with the x axis. What net charge (in Coulombs) is enclosed within the cylinder
A tiger leaps horizontally from a 5.4 -high rock with a speed of 4.0. How far from the base of the rock will she land
A 45.0 kg girl is standing on a 162 kg plank. The plank, originally at rest, is free to slide on a frozen lake, which is a flat, frictionless surface. What is her velocity relative to the surface of ice
A circular loop of wire 0.2 m in diameter is placed with its normal at an angle of 30° to the direction of a uniform 0.14 T magnetic field. What emf appears in the loop
A tennis player places a 40 kg ball machine on a frictionless surface, as shown below. The machine fires a 0.052 kg tennis ball horizontally with a velocity of 30.6 m/s toward the north. What will be the final velocity of the machine.
A uniformly charged wire or radius R1=0.02m runs down the axis of a cylinder of inner radius R2=0.06m. Find the electric field at the surface of the wire
A laser beam is projected through a diffraction grating which has a slit to slit separation of 2 microm (5000 lines/cm). What is the wavelength of the laser
A solid cylindrical disk has a radius of 0.15 m. It is mounted to an axle that is perpendicular to the circular end of the disk at its center. What is the mass of the disk
A highway curve with a radius of 550 m is banked properly for a car travelling 130 km/h. If a 1660- kg Porshe 928S rounds the curve at 250 km/h, how much sideways force should the tires exert against the road if the car does not skid.
A tall tree is growing across a river from you. You would like to know the distance between yourself and the tree, as well as its height, How far away is the tree
A soap film whose index of re%uFB02ecetion is 1.33 is suspended in air. When sunlight strikes the film nearly perpendicularly, Find the thickness of the film
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