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A golf ball is hit with an initial angle of 38.5° with respect to the horizontal and an initial velocity of 81.5 mph. It lands a distance of 86.8 m away from where it was hit. By how much did the effects of wind resistance, spin, and so forth reduce the range of the golf ball from the ideal value?
The drawing shows a hydraulic system used with disc brakes. The force is applied perpendicularly to the brake pedal. find the force applied to each side of the rotating disc
662 kev photons are emitted as a result of the deay of 137cs the photon undergo compton scattering. what is the minimum energy of compton scattered photon? what is the max compton electron energy?
A hair dryer is rated at 1700 W when connected to a 120 V source. Find the resistance of the hair dryer as well as the current in the hair dryer when it is turned on
Two objects are connected by a string that passes over a frictionless pulley as shown in the figure. Assume the incline is frictionless and take m1=2.00kg, m2=6.00kg and theta=55.0 degrees. (a) Draw free-body diagrams of both objects (b) find the mag..
Two ball, of equal masses mA = 40g and mB = 60g, are suspendedas shown. What is the velocity of each ball after the elastic collision
In San Francisco a very simple technique is used to turn around a cable car when it reaches the end of its route. The car rolls onto a turntable, what is the magnitude of the net torque applied to the car
You're an optometrist, mounting a projector at the back of your 4.2m -long exam room, 2.6m above the floor. At what height should you center the pattern on the wall
A 1.95 kg mass attached to a spring oscillates with a period of 0.390 s and an amplitude of 17.0 cm. Find the total mechanical energy of the system
A sound is set up in a pipe closed at one end and open atthe other. According to the formula given by Dr. Willis in class,when n=3 how much of a wavelength is in the pipe?
Place on magnet on a table and hold the other in your hand, well above the first. From directly above, slowly lower the upper magnet toward the first. Watch for the moment when the lower magnet jumps up to meet the upper. Separate the magnets and ..
when the nuclear reactor accident occurred at chernobyl in 1986 2.0times107ci were released into the
As a space craft approaches a planet, the rocket engines on it are fired to slow it down so it will go into orbit around the planet. how long must the engines be fired
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