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A 0.47 m long guitar string, of cross-sectional area 1.0 10-6 m2, has Young's modulus Y = 1.90 109 N/m2. By how much must you stretch the string to obtain a tension of 10 N?
___mm
A magnetic computer disk 7.0 cm in diameter is initially at rest. A small dot is painted on the edge of the disk. The disk accelerates at 590 rad/s2 for 1/2 s, Through how many revolutions has the disk turned
A space freighter has a total mass of 1.00*10^6 kg. The captain wants to travel to a destination 1.00 light years away in 12 years, Approximately how much mass must be converted energy
Pat builds a track for his model car out of wood. The track is 14.00 cm wide, 3.00 m long, Locate the horizontal coordinate of the center of gravity of this track
A light ray in the air is incident on the water 60^circ from the normal. Illustrate what is the ray's direction of travel in the glass?
The safe slides with a constant speed if Clyde pushes from behind with 420 {rm N} of force while Bonnie pulls forward on a rope with 285 {rm N} of force. Illustrate what is the safe's coefficient of kinetic friction on the bank floor?
A train 400m long is moving on a straight track with a speed of 84.30km/h. The engineer applies the brakes at the crossing and later the last car passes crossing with the speed of 17.7 km/h. suppose constant acceleration; conclude how long the tra..
Using a 679-nm wavelength laser, you form the diffraction pattern of a 0.101-mm wide slit on a screen. How far is the screen located from the slit
A block of wood floats in fresh water with two-thirds of its volume V submerged. Find the density of the wood and the liquid
Sketch and describe a floe control loop.
A ball of mass 1.7 kg hangs at the end of a string 1.2 m in length from the ceiling of a room. The height of the room is 4.0 m. What is the gravitational potential energy of the ball relative to the ceiling
What is the angular speed of a rotating wheel that has a moment of inertia of 0.330 kg.m^2 and a rotational kinetic energy of 2.75J
The spring of the pressure gauge shown in has a force constant of 1 400N/m, and the piston has a diameter of 1.60cm. When the gauge is lowered into water in a lake, what change in depth causes piston to move in by 0.850cm.
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