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harina [27]
3 years ago
15

A certain planet has an escape speed . If another planet has twice size and twice the mass of the first planet, its escape speed

will be
A) Sqrt[2] V
B) V
C) V/2
D) V/Sqrt[2]
E) 2V
Physics
2 answers:
LenKa [72]3 years ago
7 0

Answer:

answer is V

Explanation:

solong [7]3 years ago
3 0
I think the correct answer from the choices listed above is option A. A certain planet has an escape speed . If another planet has twice size and twice the mass of the first planet, its escape speed will be <span>Sqrt[2] V. Hope this answers the question.</span>
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Explain what causes acid rain to form and its negative effects on living and nonliving things.
OLga [1]
What causes it to form: <span>Acid rain is caused by a chemical reaction that begins when compounds like sulfur dioxide and nitrogen oxides are released into the air. These substances can rise very high into the atmosphere, where they mix and react with water, oxygen, and other chemicals to form more acidic pollutants, known as acid rain. Human activities, power plants, and exhaust from vehicles all are causes.</span>
Affects on living things-
Acid rain can kill trees
It can affect plant growth patterns
Toxins can kill animals
Nonliving things- 
It can decay building materials and paints
it breaks down rocks

Hope this helped! Mark brainliest?
6 0
3 years ago
John runs 120 meters in 10 seconds and then runs back to where he started in another 10 seconds. Which statement is true? Rememb
atroni [7]

Answer:

B

Explanation:

<em>A. His speed is 0 m/s </em>

<em>B. His velocity is 12 m/s </em>

<em>C. His velocity is 0 m/s </em>

<em>D. His acceleration is 12 m/s</em>

Total distance traveled by John = 120 + 120 = 240 meters

Total time taken by John to cover the distance = 10 + 10 = 20 s

<em>Average speed of John = total distance traveled/total time taken</em>

      = 240/20 = 12 m/s

Hence, the average speed/velocity of John throughout the journey is 12 m/s.

The correct option is B.

4 0
3 years ago
If a car stopped then accelerates at 25m/s2 for 2 seconds what is the final velocity of the car?
nalin [4]
The velcocity equals acceleration times time
which is 50 ms per sec
5 0
4 years ago
A force is applied to an object at rest with a mass of 100 kg. A force twice as large is applied to another object at rest with
MAVERICK [17]
The second object, the one that had twice the force applied to it, would move twice as far, I believe.
3 0
3 years ago
Dylan is the best athlete in our school. He plays football, basketball, and baseball and does the pole vault for the track team.
geniusboy [140]
We need to subtract his current status by his goal:

goal - current = needed
6.12 - 5.73 = 0.39 m.

Now, we need to convert to cm. Since there is 100 cm in 1 m:

0.39 * 100
39 cm

Hope this helps!
4 0
3 years ago
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