Physics

Problem

At what approximate altitude

h

(in km) above Earth’s surface will the acceleration due to gravity reduce to one-half of its surface value? (Use

R = 6.4\times10^{6}\,\text{m}

and give the answer to the nearest

50\,\text{km}

.) a)

3\,200\ \text{km}

2\,650\ \text{km}

1\,600\ \text{km}

6\,400\ \text{km}