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A 1260 g mass is on a horizontal surface with mu-k = 0.340, and is in contact with a massless spring with a force constant of 745 N/m which is compressed. When the spring is released, it does 12.07 J of work on the mass while returning to its equilibrium position. Calculate the distance the spring was compressed.
An Olympic skier whose mass is 50 kg is moving at 25 m/s down a 20degree slope encounters a region of wet snow of coefficient of frictio Uk=0.55 which reduces her speed. Find the acceleration of the skier
At one point in a pipeline, the water's speed is 2.75 and the gauge pressure is 3.80×104. Find the gauge pressure at a second point in the line 10.8 lower
So I have a spring with a ball on it. I measure how many times it oscillates 10 times and I measure those 10 times at 11.6 seconds which means one time it takes is 1.16 seconds. How do I find the spring constant
Design an amplifier using a 741 that has a gain of 20. What are the input and output impedances of your amiplifer
Water flows at the rate of 3.21 kg/s through a hose with a diameter of 3.52 centimeter. Find the speed of water in this hose
A transverse wave on a string is described by the following wave function. y = 0.105 sin [(?/12)x + 5?t] where x and y are in meters and t is in seconds. (a) Determine the transverse speed at t = 0.290 s for an element of the string located at x = 1...
A train has a length of 98.0m and starts from rest by a constant acceleration at time t=0s. At this instant, a car just reaches the end of the train. The car is moving by a constant velocity. At a time t=12.0s, the car just reaches the front of the t..
One end of a 0.23-m copper rod by a cross-sectional are a of 1.19*10-4 m2 is driven into the enter of a sphere of ice at 0° C (radius = 0.16 m). The portion of the rod that is embedded in the ice is also at 0° C. The rod is horizontal and its other e..
Two people with a combined mass of 134 kg hop into an old car with worn-out shock absorbers. This causes the springs to compress by 9.00cm. Find the total load supported by the springs
You are in a hot air balloon (yes, another balloon problem!) rising from the ground at a constant velocity of 2.10 m/s upward, How long does the cork remain in the air
A 400 kg piano is being lowered into position by a crane while two people steady it by ropes pulling to the sides. Bob's rope pulls to the left, 15 degree below horizontal, by 380 N of tension. Ellen's rope pulls toward the right, 25 degree below hor..
ball a with a mass of 0.500kg is moving east at velocity of 0.8 ms. it strikes ball b also of mass 0.5 kg which is
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