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Q. A 200 g ball is tied to a string. it is pulled to an angle of 8 degrees and released to swing as a pendulum. a student with a stopwatch finds that 10 oscillations take 12 s. how long is the string?
Q. Two violin strings are tuned to the same frequency, 294 Hz. The tension in one string is then decreased by 1.5 %. What will be the beat frequency heard when the two strings are played together?
A sled starts up an incline of 350 with the horizontal. The sled starts from the bottom with an initial velocity of 5 m/s. (a) How far u p the incline does it go? A second sled starts to slide from the top when the first sled starts to slide down...
Find the speed of the car when brakes were applied.
Calculate the smallest coefficient of static friction necessary for mass A to remain stationary.
A bowling ball with a mass of 6.8 kg strikes a stationary pin that has a mass of 1.6 kg. After the collision, the pin flies forward (in the positive x direction) with a speed of 7.3 m/s, and the ball continues forward at 3.2 m/s (in the positive x..
What horizontal force acts on the puck after the push
What slit separation will produce first-order maxima.
suppose that visible light enters a Plexiglas cube containing water at a 20o angle of incidence, travels through the water and exits the cube.
Two equal forces act on the two different objects, one of which has a mass ten times as large as the other. Will the more massive object have the larger acceleration, an equal accelearation, or a smaller acceleration.
A guitar string is 90cm long and has a mass of 3.6g from the bridge to support post (L) is 60cm and the string is under the tension of 560. What are the frequencies of fundamental and first two overtones.
The burning of gasoline in a car releases about 3 × 10^4 kcal/gal. If a car averages 43 km/gal when driving 90 km/h, which requires 20 hp, what is an efficiency of the engine under those conditions.
Coherent light with wavelength of 602 passes by two very narrow slits and the interference pattern is observed on a screen a distance of 3.00 from the slits. The first-order bright fringe is a distance of 4.84 from the center of the central bright..
A flight attendant pulls her 71 N flight bag a distance of 322 m along a level airport floor at a constant velocity. The force she exerts is 36 N at an angle of 53° above the horizontal.
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