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A spring (k = 255 N/m) is compressed and a 235 g disk is placed against the spring. Releasing the spring launches the disk with a velocity of 2.20 m/s.
Assuming a coefficient of friction of 0.45 between the disk and the surface it slides on, how far will it travel (after leaving the spring) before coming to a stop?
Suppose a spacecraft of mass 28000kg is accelerated to 0.25c, How much kinetic energy would it have
how to compute the fraction of silver in the crown.
A train car with mass m1 = 527 kg is moving to the right with a speed of v1 = 8 m/s and collides with a second train car, What is the mass of the second train car
In an amusement park ride called The Roundup, passengers stand inside a 19.0 m -diameter rotating ring. What is the longest rotation period of the wheel that will prevent the riders from falling off at the top
Two liquids, A and B, are mixed together, and the resulting temp is 22C. If liquid A has mass m and was initially at temp 35C, and liquid B has mass 3m and was initially at temp 11C, cacluatle the ratio of the specific heats of..
Determine the maximum charge per area that can be stored on a parallel plate capacitor if the region between the plates is filled with silicon oil
My professor today stated that if a ball was to fall a certain height, then the work done by gravity on the ball would equal the work done by the ball's equal and opposite gravitational pull. By W=F*d, this means that the earth must travel the ..
A loudspeaker of mass 25.0 is suspended the distance of = 2.40 below ceiling by two cables that make equal angles with the ceiling. Each cable has a length of = 2.50. What is the tension in each of cables.
Assume you are swimming in a river while a friend watches from the shore. In calm water, you swim at a speed of 1.25 m/s. The river has a current that runs at a speed of 1m/s.
A uniform disk of radius 0.517 m and unknown mass is constrained to rotate about a perpendicular axis through its center. Find the mass of the disk
The planet saturn has a mass of 5.69x10^26kg and a volume of 8.01x10^23m^3. Would Saturn sink or float in water Explain
Using kinematic equations prove that if two balls are released simultaneously from a table, one with zero velocity and other with horizontal velocity, they will both reach ground at the same time.
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