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3 years ago

The Earth's place in space can be described as _________.

Physics

2 answers:

Ludmilka [50]3 years ago

8 0

Answer:

the awnser is b cause the earth is the third planet from the sun

Explanation:

Olin [163]3 years ago

4 0

The answer is B because if you use process of elimination, you find that A is invalid because Venus is the second planet. C is out because Mars is the 4th planet. D is out because we are nowhere near the Andromeda Galaxy. We are millions of light years away.

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A car that increases its speed from 20km/h to 100km/h undergoes what acceleration

DedPeter [7]

Answer:

Positive acceleration

Explanation:

its speeding up so it is positive

5 0

2 years ago

Which type of mirror causes light rays to refract away from each other?

Vikentia [17]

Mirrors don't cause refraction.

A convex mirror could cause parallel rays to REFLECT away from each other.

8 0

3 years ago

Base your answer(s) to the following question(s) on the information and diagram

klio [65]

Done I don't know answer of this question or this photo is the answer can you tell me

8 0

2 years ago

Which of the following is the FINAL step in a forecasting system?

Lelechka [254]

Answer:

gather the data needed to make the forecast

3 0

3 years ago

A person on a cruise ship is doing laps on the promenade deck. On one portion of the track the person is moving north with a spe

Aleksandr-060686 [28]

The direction of motion of the person relative to the water is 16.7° north of east.

Why?

We can solve the problem by applying the Pitagorean Theorem, where the first speed (to the north) and the second speed (to the east) corresponds to two legs of the right triangle formed with them. (north and east directions are perpendicular each other)

We can calculate the angle that give the direction using the following formula:

$Tan(\alpha)=\frac{NorthSpeed}{EastSpeed}\\\\Tan(\alpha)^{-1}=Tan(\frac{NorthSpeed}{EastSpeed})^{-1}\\\\\alpha=Tan(\frac{NorthSpeed}{EastSpeed})^{-1}$

Now, substituting the given information we have:

$alpha=Tan(\frac{NorthSpeed}{EastSpeed})^{-1}$

$\alpha =Tan(\frac{3.6\frac{m}{s} }{12\frac{m}{s} })^{-1}\\\\\alpha =Tan(0.3)^{-1}=16.69\°(North-East)=16.7\°(North-East)$

Hence, we have that the direction of motion of the person relative to the water is 16.7° north of east.

Have a nice day!

7 0

2 years ago