A ball is thrown up in the air from the ground with an initial speed of 25 m/s. It reaches its maximum height, and on its way down, gets stuck in between some tree branches at a height of 15 m. Calculate the total time of flight of the ball (in seconds) till it gets stuck in the branches.
Answers: 3
Physics, 21.06.2019 15:30
Taylor's experiment: 1. accurately measured the speed of light 2. locked together the phases of two light sources so that the interference pattern would not shift 3. showed that man's reaction time was much slower than the speed of light 4. showed that individual photons have wave characteristics
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Physics, 21.06.2019 16:40
Three point charges, two positive and one negative, each having a magnitude of 20 μc are placed at the vertices of an equilateral triangle (30 cm on a side). what is the magnitude of the electrostatic force on the negative charge
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Physics, 22.06.2019 10:30
Agroup of students were investigating the force of gravity. they began by dropping a foam ball from a height of 3 meters into a bucket of sand. the ball hit the sand in 0.306 seconds. they dropped additional balls of approximately the same diameter, but of different masses. here is the data they collected. based on this experiment and the collected data, what would their conclusion be?
Answers: 1
Physics, 22.06.2019 15:40
If two parallel light rays hit a mirror, they will not be parallel to each other after they reflect.
Answers: 1
A ball is thrown up in the air from the ground with an initial speed of 25 m/s. It reaches its maxim...
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