Answer:
A
Explanation:
they are atoms of the same element that have the same number of protons but different number of neutrons.
The temperature decreases as you increase in altitude.
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<span>a) Work = force x distance = 5.0 x 10^5 x 509 = 2.54 x 10^8
b) no change in velocity, therefore KE = 0
c) KE = 31 J
d) v = 15 m/s</span>
Answer: 5.0 m/s
Explanation:i had this question on my test
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Answer:
D.diamond
Explanation:
Refraction occurs due to the bending of light rays as they pass from one medium to another. The light rays bend as their speed changes as they pass from one medium to another. The more the speed changes, the more the light bends and therefore more refraction occurs. When light passes from air to the diamond, the speed of light decreases more than any of the other materials listed in the given choices. So the light rays slow down the most diamond and so most refraction occurs in diamond.