Physics, 28.11.2019 05:31 nanagardiner08
Arocket is fired vertically from the ground. it moves upwards with a constant acceleration 10m/s square for 30 seconds after which the fuel is finished. after what time from the instant of the firing of the rockets will attain maximum height? ,find the maximum height it rraches above the ground and total time the rockrt will stay above the ground.
Answers: 3
Physics, 22.06.2019 05:30
What are similarities and differences of reflection, refraction, diffraction and absorption?
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Physics, 22.06.2019 09:30
Acar traveling at 22 m/s starts to decelerate steadily. it comes to a complete stop in 15 seconds. what is it’s acceleration?
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Physics, 22.06.2019 11:00
Afisherman notices that his boat is moving up and down periodically without any horizontal motion, owing to waves on the surface of the water. it takes a time of 2.20 s for the boat to travel from its highest point to its lowest, a total distance of 0.670 m . the fisherman sees that the wave crests are spaced a horizontal distance of 5.80 m apart. (a) how much is the wavelength? (b) find the period of the wave. (c) how fast are the waves traveling? (d) what is the amplitude a of each wave?
Answers: 3
Arocket is fired vertically from the ground. it moves upwards with a constant acceleration 10m/s squ...
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