Answer:
Explanation:
The answer is the layer right under the convection current, C and D. The heat is generated by radioactive decay of heavy elements in the Earth core.
Answer: Magnetic and gravitational force
Explanation: When a magnet and an iron nail are kept at a distance,the magnet attracts the nail without touching using magnetic force. In this example, the magnet and the nail are interacting.
The earth pulls the moon towards it and keeps it in orbit without touching it, using gravitational force. In this example,the moon and the earth are interacting.
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Answer:
Cart B has a smaller mass
Explanation:
I may be wrong but if mass is decreased then acceleration increases, and if velocity increases then acceleration increases so my logic is that if mass decreases then velocity increases.
There isn't really a center of the universe.
Geometrically the center would be the location out of which the universe started expanding but it is impossible to find such a point.
Theories about universal expansion are talking about space at any given point expanding at a rate equal to that of any other point according to Hubble's Law