Classes are canceled due to snow, so you take advantage of the extra time to conduct some physics experiments. You fasten a large toy rocket to the back of a sled and take the modified sled to a large, flat, snowy field. You ignite the rocket and observe that the sled accelerates from rest in the forward direction at a rate of 14.5 m/s2 for a time period of 3.10 s. After this time period, the rocket engine abruptly shuts off, and the sled subsequently undergoes a constant backward acceleration due to friction of 5.65 m/s2.
After the rocket turns off, how much time does it take for the sled to come to a stop?time: sBy the time the sled finally comes to a rest, how far has it traveled from its starting point?distance traveled: m
Answers: 1
Physics, 22.06.2019 09:40, dakshshberry
Asatellite component is in the shape of a cube with 10cm edges, has an evenly distributed mass of 2 kg and one bolt hole at each of four corners. if the maximum predicted random vibration environment is 10 grms, what bolt size would be a good choice for restraint? what other factors might drive bolt size besides force/stress?
Answers: 2
Physics, 22.06.2019 10:00, kenna0
This is important 1. what happens to the speed of molecules in water vapor when it condenses to form a liquid? (2 points) the molecules slow down. the molecules speed up. the molecules slow down and then speed up. the molecules speed up and then slow down. 2. how might human activities change to compensate for a decrease in water supplies? (2 points) humans might build a factory. humans might build drainage systems. humans might extract more water from the ground. human behavior does not change because of the water cycle. i'll be grateful if anyone can answer these 2 questions !
Answers: 1
Physics, 22.06.2019 15:00, chynahgibsonwinfrey
What happens when a rubber rod is rubbed with a piece of fur?
Answers: 1
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