Physics, 16.09.2019 17:20, graciecope04
Arocket is fired vertically and ascends with a constant vertical acceleration of 20 m/s2 for 1 min. its fuel is then all used and it continues as a free fall particle. (a) calculate the maximum altitude reached. (b) calculate the total time elapsed from takeoff until the rocket strikes the earth.
Answers: 3
Physics, 22.06.2019 14:30, sross8799
Suppose that 27 j of work is needed to stretch a spring from its natural length of 6 m to a length of 9 m. (a) how much work is needed to stretch the spring from 12 m to 14 m? j (b) how far beyond its natural length will a force of 78 n keep the spring stretched?
Answers: 2
Physics, 22.06.2019 16:40, odalysesquermon
The force needed to overcome static friction is usually less than that needed to overcome kinetic friction. true or false?
Answers: 1
Physics, 22.06.2019 22:00, morganzahn16
It takes a lot of energy to get the temperature of water to increase and eventually boil because water has a high heat.
Answers: 1
Arocket is fired vertically and ascends with a constant vertical acceleration of 20 m/s2 for 1 min....
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