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kupik [55]
3 years ago
8

How can different objects interact when they are not even touching?

Physics
1 answer:
jeka943 years ago
3 0

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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a. ρ_\beta=1.996J/m^3

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U_E=\frac{1}{2}*E_o*E^2

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