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A uniform beam is supported by a cable at one end and force of friction at the other. Cable at least 30 degrees. Length of beam 6m. Friction is .86 and mass is 100kg. Find the minimum X distance we can add 250 kg and the beam not slip from the wall
An object of mass m1 = 2.10 kg placed on a frictionless, Draw free-body diagrams of both objects, This answer has not been graded yet
An interferometer is used to measure the length of a bacterium. The wavelength of the light used is 650 nm. How long is the bacterium
String 1 in the figure has linear density 2.90 and string 2 has linear density 3.20 . A student sends pulses in both directions by quickly pulling up on the knot, then releasing it. Consider the pulses are to reach the ends of the strings simultaneou..
A car is traveling in the x direction with a velocity of 20 m/s. The driver applies the brakes, What is the stopping distance
four long parallel wires each carry 2.0 a in the same direction. they are parallel to the z-axis and they pass through
a singly ionized nickel atom has an overall charge of 1e where e 1.602 x 10-19 c and a mass m 9.80 x 10-26 kg. it
A softball of mass 0.220 kg that is moving by a speed of 7.0 m/s (in the positive direction) collides head-on and elastically by another ball initially atrest. Afterward it is found that the incoming ball has bounced backward with a speed of 5 m/s.
A diffraction grating has 4272 lines/cm. Calculate the width of the dark area between the first and second order spectra on a screen 3.3 m away
Two blocks are connected by a lightweight, flexible cord that passes over a single frictionless pulley. If m1 >> m2, find the acceleration of each block
A 13cm -diameter cylinder contains argon gas at 10 atm pressure and a temperature of 50oC. A piston can slide in and out of the cylinder. What is the final temperature of the cylinder
A gasoline engine with an efficiency of 0.4 generates 1800 W of power. how many liters of gasoline does the engine consume each hour
a soccer player kicks the ball toward a goal that is 13.0 m in front of him. the ball leaves his foot at a speed of
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