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A 70.0 kilogram man throws a 0.0420 kilogram snowball forward with a ground speed of 34.0 m/s. A second man, with a mass of 59.0 kilogram, catches the snowball. Both people are on skates. The first man is initially moving forward with a speed of 2.20 m/s, and the second man is initially at rest. Determine the velocities of the two people after the snowball is exchanged? Disregard the friction between the ice and the skates.
suppose a uniformly charged ring in the xy plane, centered at the origin. The ring has radius a and positive charge q distributed evenly along its circumference.
dorothy is up on her 11.0m by 14.0m roof enjoying the view of kansas. suddenly a strong wind blows down her ladder
If a low-pressure sodium vapor lamp emits 50 W of yellow light, how many photons does it emit each second
In some places, insect "zappers", with their blue lights, are afamiliar sight on summer nights. These devices use a high voltageto electrocute insects. One such device uses an ac voltage of 4310V, which is obtained from a secondary 120 V outlet by me..
A discus thrower (with arm length of 1.2 m) starts from rest and begins to rotate counterclockwise with an angular acceleration of 2.4 rad/s2. What is the tangential acceleration of the discus thrower at this point
the magnitude of the force that a spring exerts f when it is stretched a distance x from its unstressed length is
Consider a chain with length 0.9 m and mass per unit length 0.6 kg/m. Suppose it is initially suspended above a table so that the lower, What is the force when one-half of the chain lies on the table
A horizontal block-spring system with the block on a frictionless surface has total mechanical energy E = 55.1 J, What is the kinetic energy of the system at the equilibrium point
A long jumper leaves the ground at an angle of 20.0o to the horizontal and at a speed of 11.0 m/s. How far does he jump
a baseball is thrown from the roof of a building of height 20.6 with an initial velocity of magnitude 14.0 and directed
A person weighs 691 N in air but only 499 N when standing in water up to the hips. Find the volume of each of the person's legs
A 4.90 kilogram ball, moving to the right (positive direction) at a velocity of +1.65 m/s on a frictionless table, Determine the final velocity of the 4.9 kilogram ball if the collision is elastic
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