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A stone is thrown horizontally with an initial speed of 7.5m/sfrom the edge of cliff. A stopwatch measures the stone's trajectorytime from the top of the cliff to the bottom to be 2.5s. What is the height of the cliff?
A 19.5 ?F capacitor is fully charged by connecting it to a 14.0 V battery. Calculate the charge stored on one of the capacitor plates
An electric motor turns a flywheel through a drive belt that joins a pulley on the motor and a pulley that is rigidly attached to the flywheel as shown in the figure below. The flywheel is a solid disk with a mass of 70.5 kg and a radius R = 0.625..
Evangelista Torricelli was the first person to realize that we live at the bottom of an ocean of air. He correctly surmised that the pressure of our atmosphere is attributable to the weight of the air.
A 5.00g bullet is fired horizontally into a 1.30kgwooden block resting on a horizontal surface. What was the initial speed of the bullet
A particle moves along a straight line with an acceleration of a = 2pi / (2s^(2/3) + 3s^(5/8)) m/s^2, where s is in meters. Determine the particles velocity when s = 2 m, if it starts from rest when s = 1m.
An ocean liner leaves New York City and travels 43° north of east for 189 km. How far east and how far north has it gone? In other words, what are the magnitudes of the components of the ship's displacement vector in the directions.
Eight books, each 3.90 cm thick with mass 1.70 kg, lie flat on a table. How much work is required to stack them on top of each other.
A magnifying glass has a focal length of 8cm. How close to an object do you need to place the magnifying glass, What type of image is this and what is its magnification
A diffraction grating is made up of slits of width = 300 nm with separation = 1150 nm. The grating is illuminated by monchromatic plane waves of wavelength ? = 560 nm at normal incidence. How many maxima are there in the full diffraction pattern? Wha..
An archer pulls the bowstring back for a distance of0.550 m before releasing the arrow. Thebow and string act like a spring whose spring constant is490 N/m. What is the elastic potential energy of the drawn bow?
A spherical capacitor of inner radius 10 cm stores 10nC of charge when charged with 10V. Find s capacitance, its outer radius and the volume between the two spheres
A 423 Hz sound wave travels through a substance. What is the speed of sound in the substance
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