Explanation:
because the moon has less mass than earth, the force due to gravity at the lunar surface is only about 1/6 that on earthso,the weight of a body on earth is 6×5N =30N
Answer:
The change in frequency hearded by an observer in the truck is f'= 636.36 Hz.
Explanation:
Vo= 36 m/s
Vf= 45 m/s
V= 342 m/s
f= 500 Hz
f'= f * ((V- (-Vo)) / (V - Vf)
f'= 636.36 Hz
Answer:
8.90 x 10^-3
Explanation:
8.90 x 10^-3
It has to be 10^-3 (ten to the negative three) because when you move the decimal back to it's proper place you are moving it to the left.
and it has to be 8.90 because you have to observe correct sig figs. The 0 at the end of the number is significant because it is at the end of the number AND to the right of the decimal point.
<span>The momentum of the second ball will depend on the acceleration of the first moving ball.</span>
Explain why the speed of light is lower than
3.0 × 108 m/s as it goes through different media.
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the molecules are forced to vibrate. that vib causes re emission. speed of emiited waves less than in vac.