Physics, 18.11.2019 19:31 guyfromnasa
In preparation for shooting a ball in a pinball machine, a spring (k = 730 n/m) is compressed by 0.0796 m relative to its unstrained length. the ball (m = 0.0585 kg) is at rest against the spring at point a. when the spring is released, the ball slides (without rolling). it leaves the spring and arrives at point b, which is 0.256 m higher than point a. ignore friction, and find the ball's speed at point b.
Answers: 1
Physics, 21.06.2019 18:00
Aplane flies directly between two cities, a and b, which are separated by . from a to b, the plane flies into a headwind. on the return trip from b to a, the wind velocity is unchanged. the trip from b to a takes less than the trip from a to b. what is the airspeed of the plane, assuming it is the same in both directions
Answers: 1
Physics, 22.06.2019 10:00
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 11:30
Write down two additional questions about earth's magnetic field that will make your presentation more informative.
Answers: 1
In preparation for shooting a ball in a pinball machine, a spring (k = 730 n/m) is compressed by 0.0...
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