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A 1.75 kg block slides on a rough, horizontal surface. The blockhits a spring with a speed of 1.86 m/s and compresses it a distanceof 12.1 cm before coming to rest. If the coefficient of kineticfriction between the block and the surface is μk =0.592, what is the force constant of the spring?
A 25 kg cannon shell is subjected to a constant acceleration of 1200 g while in the cannon barrel. What force is the burning propellant exerting on the shell
What is potential barrier for the molecule aggregation? Will the solution be stable at these conditions? Will it be stable at 100 mmol/L salt concentration?
A water slide launches a child horizontally above a swimming pool. The distance from the top of the slide to the launch point is 4.48 m. How far from the launch point does the child land
question a car m2000 kg is parked on a road that rises 20 degrees above the horizontal. what are the magnitudes of 1
You are on an airplane traveling 30° south of due west at 100.0 m/s with respect to the air. What is the heading of the plane with respect to the ground
a cameraman on a pickup truck is traveling westward at 20 kmh while he videotapes a cheetah that is moving westward 30
When a hammer strikes a nail, it is compressed along its length. Suppose that a steel nail 8.00 cm long, What average force was exerted on the nail by the hammer
A 528 Hz sound wave travels through a substance. The wavelength of the sound wave is measured to be 3.2 meters
A horizontal 790-N merry-go-round of radius 1.30 m is started from rest by a constant horizontal force of 45 N applied tangentially to the merry-go-round. Find the kinetic energy (Joules) of the merry-go-round
a spring is hanging vertically from a ceiling. assume the springs mass is negligible. i hang a 0.5kg mass on the spring
Two charged plates create a potential difference of 190 V. At a point halfway between the plates an electron is released from rest. What was the initial speed and direction of the proton
a bicycle tire with a radius of .42 m has a linear velocity of 2.6 ms and an tangential acceleration of -1.0 ms2.i what
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