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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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jenny's model train is set up on a circular track. There are six telephone poles evenly spaced around the track. It takes the en
d1i1m1o1n [39]

Answer:

T = 60 s

Explanation:

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so the angular separation between the poles is given as

\theta = \frac{2\pi}{6}

\theta = \frac{\pi}{3}

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\omega = \frac{\pi}{30} rad/s

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5 0
3 years ago
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If an object moving at 12 m/s has a kinetic energy of 72 j what is the mass
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5 0
3 years ago
An object of mass 30 kg is falling in air and experiences a force due to air resistance of 50
Setler79 [48]

Answer:

very hard others will answer it

Explanation:

hard

6 0
2 years ago
When a certain rubber band is stretched a distance x, it exerts a restoring force of magnitude f = ax, where a is a constant. th
Veseljchak [2.6K]
Given:
F = ax
where
x = distance by which the rubber band is stretched
a =  constant

The work done in stretching the rubber band from x = 0 to x = L is
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Answer:  \frac{aL^{2}}{2}

4 0
3 years ago
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