Question

If the Earth were 9 times as far from the Sun as it is, the Earth’s orbital velocity would be about ____ times slower.

Answer 1

Answer:

if the earth were 9 times as far from the sun as it is, the earth's orbital velocity would be about 3 times slower.

Explanation:

Answer 2

Answer:

3 TIMES SLOWER

Explanation:

Orbital velocity =$\sqrt{\frac{GM}{R}}$ Where G=Universal gravitational constant , M be the mass of body and R be distance between two bodies.

Given,

$9R_{E} =R_{S}$

So orbital velocity of sun =$\sqrt{\frac{GM}{R_{s} }}$(1)

orbital velocity of EARTH=$\sqrt{\frac{GM}{R_{E} }}$(2)

$\frac{(1)}{(2)}$ BECOMES,

$=\sqrt{\frac{R_{S} }{R_{E } } }\\\\= \sqrt{\frac{9R_{E} }{R_{E} } } \\\\\=3$