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3 years ago

How long does it take a wave to travel 1200 meters with the speed of 3 X 108m/sec?

Physics

1 answer:

Vladimir79 [104]3 years ago

5 0

Around 3.70 seconds unless traveling through media

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Astronomers determine that a certain square region in interstellar space has an area of approximately 2.4 \times 10^72.4×10 7

mafiozo [28]

Answer:

1.5 × 10³⁶ light-years

Explanation:

A certain square region in interstellar space has an area of approximately 2.4 × 10⁷² (light-years)². The area of a square can be calculated using the following expression.

A = l²

where,

A is the area of the square

l is the side of the square

l = √A = √2.4 × 10⁷² (light-years)² = 1.5 × 10³⁶ light-years

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3 years ago

A student is watching waves come in from the ocean. He noticed that the first wave he saw (Wave A) had twice the amplitude of th

Alika [10]

Answer:

Wave A

I hope this helps

8 0

2 years ago

What is tensile stress?

Rasek [7]

Tensile strength is the amount of tension a material can hold, at least I hope that’s what it is.

5 0

3 years ago

6. A satellite is orbiting Earth just above its surface. The centripetal force making the satellite follow a circular trajectory

Svetllana [295]

Answer:

Engular velocity: $w=1,24*10^{-3}/s$

Linear velocity: $V=7905 m/s$

The time it takes:

$t=5060s=84min$

Explanation:

The magnitude of the centripetal acceleration can be related to the angular velocity and radius as:

(1) $a=r*w^{2}$

Solving for w:

(2) $w=\sqrt{\frac{a}{r} }$

Replacing a=9,8m/s2 and r=6,375,000m:

(3) $w=\sqrt{\frac{9,8m/s^{2}}{6375000m} }=1,24*10^{-3}/s$

And the angular velocity relates to the linear velocity:

$V=w*r=1,24*10^{-3}/s*6375000m=7905 m/s$

The perimeter of the orbit is:

$P=\pi *2*r=\pi *2*6375000m=40.05*10^{6}m$

The time it takes:

$t=\frac{P}{V} =\frac{40.05*10^{6}m}{7905 m/s}=5060s=84min$

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3 years ago

To get employees to work longer hours, employers often offer __________ in the form of extra pay.

Dovator [93]

C- Incentives it’s like a reward ~!

6 0

2 years ago