Physics, 23.03.2020 23:01 tammydbrooks43
A fireworks rocket is fired vertically upward. At its maximum height of 70.0 m , it explodes and breaks into two pieces, one with mass mA = 1.30 kg and the other with mass mB = 0.300 kg . In the explosion, 950 J of chemical energy is converted to kinetic energy of the two fragments. What is the speed of each fragment just after the explosion?
Answers: 2
Physics, 22.06.2019 05:00
Which statements describe the movement of ocean currents around the globe? check all that apply. strong winds force warm water to sink to the ocean floor. the coriolis effect causes warm and cold water to mix. cool dense water sinks to the ocean floor. warm water replaces cool surface water. wind blowing parallel to the shore causes upwelling of cool water.
Answers: 1
Physics, 22.06.2019 10:30
The uniform slender bar rests on a smooth horizon- tal surface when a force f is applied normal to the bar at point a. point a is observed to have an initial acceleration aa of 20 m/s2, and the bar has a corre- sponding angular acceleration of 18 rad /s2. deter- mine the distance b.
Answers: 1
A fireworks rocket is fired vertically upward. At its maximum height of 70.0 m , it explodes and bre...
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