In a test run, a certain car accelerates uniformly from zero to 24.0 m/s in 2.95 s. (a) what is the magnitude of the car’s acceleration? (b) how long does it take the car to change its speed from 10.0 m/s to 20.0 m/s? (c) will doubling the time always double the change in speed? why?
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Physics, 21.06.2019 13:00
The two most prominent wavelengths in the light emitted by a hydrogen discharge lamp are 656 nm(red) and 486 nm (blue). light from a hydrogen lamp illuminates a diffraction grating with 520lines/mm , and the light is observed on a screen 1.5m behind the grating. part a what is the distance between the first-order red and blue fringes? express your answer to two significant figures and include the appropriate units.
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Physics, 21.06.2019 17:50
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Physics, 21.06.2019 19:30
Agymnast dismounts off the uneven bars in a tuck position with a radius of 0.3m (assume she is a solid sphere) and an angular velocity of 2rev/s. during the dismount she stretches out into the straight position, with a length of 1.5m, (assume she is a uniform rod through the center) for her landing. the gymnast has a mass of 50kg. what is her angular velocity in the straight position?
Answers: 3
Physics, 22.06.2019 16:30
The ph is the a.independent variable b.the dependent variable c.control group
Answers: 1
In a test run, a certain car accelerates uniformly from zero to 24.0 m/s in 2.95 s. (a) what is the...
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