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Physics, 21.08.2019 01:30 genyjoannerubiera
Ablow-back device for a diameter d = 0.22 (in) under p = 24000 [lb/in? ) pressure connects a breech block with a mass m = 1/2 (slug/32.2] to the origin, where x = 0, by a spring, which exerts a force of 3 (lb) when the breech block is moved back by 1.5 in), so that the spring constant is k=3/1.5 lb/in. friction is so small that the measuring instruments at hand do not detect any friction (3.1) find a formula for the force on the breech block in terms of pressure, diameter, and spring. (3.2) find an algebraic formula for the acceleration x(t) of the breech block at time t, for 0 0 when x(ti) = 0. (when is the breech block back at 0? )
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Physics, 22.06.2019 16:40, dylan6981
The astronauts on the space shuttle flights experienced an acceleration of 29 m/s2 (about 3 "g's") during lift-off. what upward force must the astronaut's seat apply to the astronaut in order to cause this acceleration? assume the astronaut's mass is 70 kg, and compute this force when the acceleration is near the earth's surface so their weight equals latex: mg m g .
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Ablow-back device for a diameter d = 0.22 (in) under p = 24000 [lb/in? ) pressure connects a breech...
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