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When a 0.045 kilogram golf ball takes off after being hit, its speed is 35 m/s.
(a) Determine how much work is done on the ball by the club?
(b) Suppose that the force of the golf club acts parallel to the motion of the ball and that the club is in contact with the ball for a distance of 0.020 meter. Neglect the weight of the ball and find the average force applied to the ball by the club.
The rules of tennis specify that the .057-kg ball must bounce to a height of between 53 and 58 inches when dropped from a height of 100 inches onto a concrete slab. What is the change in the momentum of the ball
Some bacteria are propelled by biological motors that spin hair-like flagella. How long does it take the motor to make one revolution
a uniform electric field of magnitude 445 nc pointing in the positive x-direction acts on an electron which is
During a 73.8-ms interval, a change in the current in a primary coil occurs. This change leads to the appearance of a 6.03-mA current in a nearby secondary coil. The secondary coil is part of a circuit in which the resistance is 12.6 ?. The mutual in..
A light spring-gun projectile launcher is mounted on an 0.533 kg air track glider. What is the speed of the air-track glider after the gun is fired
A spacecraft is in orbit around a planet. The radius of the orbit is 3.2 times the radius of the planet (which is R = 71466 km). What is the period of the spacecraft's orbit
When a grating is used with light that has a wavelength of 541 nm, a third-order maximum is formed at an angle of 30.0°. How many lines per centimeter does this grating have
Toni has a mass of 43 kg and is moving with a speed of 11.6 m/s. Assume that air resistance is negligible. Find Toni's kinetic energy. Toni's speed changes to 5.8 m/s. Now what is her kinetic energy? What is the ratio of the kinetic energies in parts..
A 168 kg polar bear standing 1.2 meters tall walks onto a floating sheet of ice 0.305 m thick. What is the surface area of the ice floe
A camper is trying to start a fire by focusing sunlight onto apiece of paper. The diameter of the sun is 1.39 x109 m, and its mean distance from the earth is 1.50x 1011 m. The camper is using a converging lenswhose focal length is 10.3 cm.
Energy is required to move a 1530 kg mass from the Earth’ssurface to an altitude 2.43 times the Earth’s radius RE. The acceleration of gravity is 9.8 m/s2. What amount of energy is required to accomplish this move?
Compared to an object that does not roll, other than instead slides without friction, should a rolling object be released from same, a greater, or a lesser height in order just barely to complete the loop the loop.
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