The answer is, "B", "Ammonia".
1. Tectonic plates move
2. Magma forms and rises through the cracks
3. Lava flows onto the Earth’s surface
4. Lava cools and hardens to form igneous rock
Answer:
B Eight light-minutes
Explanation:
In the case when the distance separated earth and the sun so here we orbit the sun for a 150 million km distance and the light moves would be 300,000 kilometers per second
Now divide this
= 150 million ÷ 300,000 kilometers per second
= 500 seconds
This 500 seconds represent 8 minutes and 20 seconds
Hence, option B is correct
Answer:
Vb = v/2
Half of the speed of Car A before the collision
Explanation:
This problem can be solved by using conservation of momentum.

Since car B was stopped before the collision and its mass is twice the mass of A:

Also, since it is an elastic collision, car A stops after hitting car B. Rewriting the equation:

Therefore, the speed of car B after the collision is half of the speed of car A before the collision (v)
Vb = v/2