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Answer:
Explanation:
Ocean contains salty water which causes the object to float rather than sinking, So yes it's easy to swim in ocean than water without salt.
Answer:
Actually it's called electro-magnetic induction...
The thermal energy used by the tires is 1.14 J.
Here, the thermal energy used will be the work done by Mark.
Given,
Distance = 140 m
Force exerted = 160 N
Thermal energy = ?
We know,
Work = force * displacement
But here the thermal energy of tires is asked.
In this question, the thermal energy used is the energy consumed to do the work.
So, using the formula of work we can find the thermal energy.
W = 160 / 140 = 1.14 J
Therefore the thermal energy used by the tires is 1.14J
To learn more about thermal energy, refer: brainly.com/question/1687193
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I believe it always acts in the direction opposite to that of the object in motion, so if the force was applied to the left then friction acts in the right
hope that helps
