Answer:
Because the uncontrolled and unreasonable use of energy resources in the past few decades has led to the depletion of conventional type of resources. Although, measures are taken at the government levels to control the energy consumption, these attempts only meet with little success. Public awareness is the only way to successfully deal with this problem.
Explanation:
We know that momentum = mass times velocity
So a. 720 kgm/s
Scenes the chair wheels are up the person is rolling backwards and if the wheels were down then the person would go forwards
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7) PE= Fwh = (72 m) (966 N) = 69552 Joules 7
8) zero PE=mass*g*height
I hope it’s correct
B. Mentally represent their environment