Answer:
D. gravitational potential energy
Explanation:
Answer:
it is ---D because you can't measure gas and it's mass
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Answer:
See explaination
Explanation:
please kindly see attachment for the step by step solution of the given problem.
There are some missing information in the question.
However, since you are talking about magnetic force, I think you refer to the Lorentz force. When a particle of charge q and velocity v is immersed in a magnetic field of intensity B, the force acting on the particle is:

where

is the angle between the magnetic field and the direction of the particle.
Therefore, if force F is doubled, then also the velocity v must be double of its initial value: