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schepotkina [342]
3 years ago
11

HELP: When Jane drives to work, she always places her purse on the passenger's seat. By the time she gets to work, her purse has

fallen on the floor in front of the passenger seat. One day, she asks you to explain why this happens in terms of physics. What do you say?
Physics
1 answer:
Rudiy273 years ago
5 0

a force is a push or pull that acts upon an object as a result of its interaction with another object.  Newtons third law of motion suggests that something standing still will stay that way until another force pushes it.  This applies to Janes bag.  Every time Jane hits the brakes in her car, her bag will move forward until it finally falls off the seat.

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Answer:

<em>work done in pumping the entire fuel is 466587 J</em>

<em></em>

Explanation:

weight of the gasoline per volume = 6600 N/m^3

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length of the tank = 2 m

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work done in pumping fuel to this height = ?

First, we find the volume of the fuel

since the tank is cylindrical,<em> we assume that the fuel within also takes the cylindrical shape.</em>

<em>Also, we assume that the fuel completely fills the tank.</em>

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total weight = 6600 x 14.139 = 93317.4 N

work done = (total weight of the fuel) x (height through which the fuel is pumped)

work done in pumping = 93317.4 x 5 = <em>466587 J</em>

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