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zheka24 [161]
3 years ago
7

Sound cannot travel through___________.

Physics
1 answer:
lana [24]3 years ago
5 0

d.) a and b only

This is because sound needs a medium to travel.  It can travel in a solid (the fastest) and air for example.  Sound waves cannot propagate through a vacuum and since space is a vacuum the answer is a and b only.

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A private aviation helicopter's main rotor blades rotate at approximately
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Explanation:

We are given the angular velocity \omega a helicopter's main rotor blades:

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\omega=450 \frac{rev}{min} \frac{1 min}{60 s}

\omega=7.5 \frac{rev}{s}

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Studying this brochure from nasa, which explains more detail the instruments carried by the Juno spacecraft which scientific act
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Answer:

Juno scientific payload includes:

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Each mission of NASA has a specific set of instruments that it uses to perform scientific experiments on the desired heavenly body. In case of Juno, the mission for Jupiter has a series of instruments that would study domains of gravitational forces, magnetic effect, particle detection, radiation detection, UV/IR imaging, and plasma experiments.

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Vlad1618 [11]
"B" When an object moves away from us, the light is shifted to the red end of the spectrum, as its wavelengths get longer.
3 0
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Read 2 more answers
0<br> What is 33 C in absolute temperature? hs
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