A rocket is launched AGAINST gravity from rest with an acceleration of 4 bj m/s2 m/s2
. The engines
last for 10 seconds before they shut off. The rockets keeps flying upwards but it eventually stops due to
gravity. Answer the questions using gravity -9.8 bj m/s2
• Compute the velocity of the rocket RIGHT BEFORE the engines shut off.
• Compute the height the rockets reaches while the engines are still on.
• Compute the time the rocket takes to reach MAXIMUM HEIGHT.
• What is the maximum height the rocket reaches RESPECT to the ground?
Answers: 1
Physics, 21.06.2019 22:50
If the temperature were raised very high, classically what would we expect the heat capacity per object to be for this one-dimensional system? give a numerical value. chigh t = __ j/k/object (one reason for the discrepancy is that the high-temperature limit assumes that the number of oscillators is large (n > > 1), which is not the case in this tiny system.)
Answers: 2
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Which statement is true? a. kepler's laws apply only to the motion of earth. b. kepler's laws can be used to predict eclipses. c. kepler's laws are true for a central force that is directly proportional to distance. d. kepler's laws can be deduced from newton's laws of motion and gravity.
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Physics, 22.06.2019 21:00
During a car accident, a 125kg driver is moving at 31m/s and in 1.5s is brought to rest by an inflating air bag. what is the magnitude of the change in momentum to the driver
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A rocket is launched AGAINST gravity from rest with an acceleration of 4 bj m/s2 m/s2
. The engines...
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