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The cheetah can reach a top speed of 114 km/h (71 mi/h). While chasing its prey in a short sprint, a cheetah starts from rest and runs 50 m in a straight line, reaching a final speed of 82 km/h.
(a) Determine the cheetah's average acceleration during the short sprint.
m/s2
(b) Find its displacement at t = 3.4 s. (Assume the cheetah maintains a constant acceleration throughout the sprint.)
m
If the pressure of the 3.0-cm3 volume is reduced to 2.6 × 10?11 Pa (an extremely good vacuum) while the temperature remains constant, how many moles of gas remain in the container
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Then find the force between them as a function of distance h. describe why the sign of the force does (or does not) make sense to you.
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A simple camera lens with focal object length fO= 3 cm perfectly focuses the the image of an object on a photographic film located a distance 14 cm away from the lens. What is the new magnification
Three resistors of resistance 2 ?, 3 ? and 4 ? are connected in series with a 10 V battery. In which resistor is the greatest power dissipated
A car drives west on sw 8th street at a speed of 30.7 mph. The driver hits the brakes and the car slows down with a constant acceleration of 4.8 m/s^2
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