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A ball of mass 0.640 kg moving east (+x direction) with a speed of 3.20 m/s collides head-on with a 0.480 kg ball at rest. If the collision is completely elastic, what will be the speed and direction of each ball after the collision?
A diver leaves the end of a 4.0-m-high diving board and strikes the water 1.3 s later, determine magnitude of velocity when she enters the water
A 1-cm-thick layer of water stands on a horizontal slab of glass. A light ray in the air is incident on the water 64? from the normal. what is the ray's angle from the normal
Two manned satellites approaching one another at a relative speed of 0.300 m/s intend to dock. What is the loss of kinetic energy in this inelastic collision
You are standing at x = 8.5 km. Lightning bolt 1 at x=0 km and lightning bolt 2 at x = 13.0 km. Both flashes reach your eye at the same time. what is the time difference between the two flashes
A block with a mass of m is resting on a 20 degree slope. The block has coefficients of friction 0.81 and 0.55 with the surface. What is the minimum mass that will stick and not slip
Another particle, of mass 7.4 10-27 kg, moves along the positive x-axis with a speed of 4.0 106 m/s. (Assume that mass is conserved.) Evaluate the third particle's speed. What is the direction of motion?
Two thin lenses with a focal length of magnitude 16.5cm , the first diverging, How far from this first lens is the final image formed
A certain gyroscope consists of uniform disk with a 50 cm radius mounted at the center of an axle that is 11 cm long and of negligible mass. what is the precession rate
For N2 at 25oC and 1.00 atm calculate the number of collisions per second made by one molecule; the number of collisions per second per cubic centimeter; compare these values to N2 at 25oC and 1.0*10^-6 torr using the values already calculated Show a..
A boy in a wheelchair (total mass 51.0 kg) has speed 1.40 m/s at the crest of a slope 2.40 m high and 12.4 m long.Find the work he did in pushing forward on his wheels
in an electrically heated home the temperature of the ground in contact with a concrete basement wall is 12.0 oc. the
Radio waves of frequency 1.1 x 10^10 Hz are emitted from a radar antenna travelling in an eastward direction. If the amplitude of the electric field component is 1.2 V/m, calculate the intensity of the wave
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