$\"\"$ \ \

\

The weight of the satellite is $\"\"$ tons.

\

Consider the radius of the earth is $\"\"$ miles.

\

(a)

\

The satellite is $\"\"$ miles above the earth.

\

The weight of the satellite is $\"\"$ .

\

Substitute $\"\"$ and $\"\"$ .

\

$\"\"$

\

$\"\"$ .

\

$\"\"$ .

\

The work done by the satellite is $\"\"$ .

\

$\"\"$

\

$\"\"$

\

$\"\"$ .

\

Since $\"\"$ and $\"\"$ .

\

$\"\"$ .

\

The workdone by the satellite is $\"\"$ .

\

$\"\"$

\

(b)

\

The satellite is $\"\"$ miles above the earth.

\

The work done by the satellite is $\"\"$ .

\

$\"\"$

\

$\"\"$

\

$\"\"$ .

\

Since $\"\"$ and $\"\"$ .

\

$\"\"$ .

\

$\"\"$ . \ \

\

The workdone by the satellite is $\"\"$ .

\

$\"\"$

\

(a) The workdone by the satellite is $\"\"$ .

\

(b) The workdone by the satellite is $\"\"$ .