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A watermelon cannon fires a watermelon vertically up into the air at a velocity of +13.5 m/s, starting from an initial position 1.20 meters above the ground. When the watermelon reaches the peak of its flight, what is (a) its velocity, (b) its acceleration, (c) the elapsed time, and (d) its height above the ground?
A 10g bullet is fired horizontally into a 300g wooden block initially at rest on a horizontal surface and becomes embedded in it. The coefficient of friction between block and surface in 0.50. The combined system slides 4.0m before stopping. With ..
at a 62 heating efficiency determine the quantity of natural gas in g required to melt 25g of solid gold initial
in a simple model of the hydrogen atom the electron revolves in a circular orbit around the proton with a speed of
An explosion breaks an object into two pieces, one of which has 1.5 times the mass of the other. how much kinetic energy did each piece acquire
A person lifts a 4.5 kg cement block a vertical distance of 1.2 m and then carries the block horizontal. ly a distance of 7.3 m. Determine the work done by the person and by the force of gravity in this process.
Based on your understanding of the material on Rome, in what ways do you see the concept of power or propaganda being displayed? Describe a particular artifact and the context with which it would have been viewed. What makes the artifact an image of ..
A roller-coaster car has a mass of 504 kg when fully loaded with passengers point A, what is the force exerted by the track on the car at this point
What happens in the table as to the potential energies
A charged sphere of mass 2.5x10^-5 kg and net charge of 6.0x10^-9 C hangs from a silk thread, suspended between two large parallel conducting plates. find the magnitude of the charge dentist on each plate
A Toyota AE86 Trueno has a mass of 1011 ± 90 Kg and is moving with a velocity of 150 ±3 km/h north. What is the car momentum
On wet pavement, the coefficient of kinetic friction may be only 0.25. How fast should you drive on wet pavement
An astronaut measures her mass by means of a device consisting of a chair attached to a large spring. what is the mass of the astronaut and chair
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