Derive an expression for the energy needed to launch an object from the surface of earth to a height h above the surface. ignoring earth's rotation, how much energy is needed to get the same object into orbit at height h? express your answer in terms of some or all of the variables h, mass of the object m, mass of earth me, its radius re, and gravitational constant g.
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Physics, 21.06.2019 18:00
Which statement is true for light passing into a medium that is more optically dense than the first medium through which it past
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Ahanging spring stretches by 35.0 cm when an object of mass 450 g is hung on it at rest. in this situation, we define its position as x = 0. the object is pulled down an additional 18.0 cm and released from rest to oscillate without friction. what is its position x at a moment 84.4 s later? express your answer in cm.
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12. a body is a particular amount of matter. it can be a solid, liquid or gas. it can be described as existing in a. size and shape. b. motion and force c. time and space. d. location and movement.
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How is the ideal mechanical advantage of a wheel and axle calculated?
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Derive an expression for the energy needed to launch an object from the surface of earth to a height...
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