Explanation:
The weight of an object on the surface of the earth is equal to the gravitational force exerted by the earth on the object.


which gives us an expression for the acceleration due to gravity <em>g</em> as

At a height h = R, the radius of a satellite's orbit is 2R. Then the acceleration due to gravity
at this height is

Simplifying this, we get

Levers
Most machines in your body are levers that consist of bones and muscles. Tendons and muscles pull on bones, making them act as levers. Joint, near where tendon is attached to bone acts as fulcrum. Muscles produce input force.
Answer:

Explanation:
Recall weight density of water 62.5 lb/ft^3 and the height 6ft base 8ft
The width of the triangle

The hydrostatic force is the pressure times area of the submerged





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