Physics, 21.04.2020 20:14 victoriapellam04
Because the direction of Earth's motion around the Sun continually changes during the year, the apparent position of a star in the sky moves in a small loop, known as the aberration of starlight. In order to better understand this phenomenon, it is sometimes helpful to use visual analogies. In these visual analogies, the car is analogous to the Earth, and the rainfall is analogous to starlight. Determine which visual analogies correspond to the following scenarios:
A) The Earth moving around the Sun and interacting with light from a distant star
B) A person on the moving Earth observing the light from a distant star
C) A person on a motionless Earth observing the light from a distant star
Answers: 1
Physics, 21.06.2019 20:40
If an object with an initial temperature of 300 k increases its temperature by 1°c every minute, by how many degrees fahrenheit will its temperature have increased in 10 minutes? (a) 6°f (b) 10°f (c) 18°f (d) 30°f
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Physics, 21.06.2019 22:20
Aboxcar traveling at 12 m/s approaches a string of 5 identical boxcars sitting stationary on the track. the moving boxcar collides and links with the stationary cars and they all move off together along the track. what is the final speed of the cars immediately after the collision? (you may take the mass of each boxcar to be 18,537 kg.)
Answers: 1
Physics, 22.06.2019 16:30
In a classical model of the hydrogen atom, the electron moves around the proton in a circular orbit of radius 0.053 nm. what is the electron's orbital frequency? what is the effective current of the electron?
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Physics, 22.06.2019 18:00
Asynthetic fiber used in manufacturing carpet has tensile strength that is normally distributed with mean 75.5 psi and standard deviation 3.5 psi. how is the standard deviation of the sample mean changed when the sample size is increased from n equals 8 to n equals 47
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Because the direction of Earth's motion around the Sun continually changes during the year, the appa...
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