For a moon orbiting its planet, rp

0.65

What shape is the Earth's orbit around the Sun?(1 point)

Responses

an ellipse that is almost circular
an ellipse that is almost circular

a circle
a circle

an ellipse that is elongated
an ellipse that is elongated

a spiral

an ellipse that is almost circular

A satellite orbiting Earth at an orbital radius r has a velocity v. Which represents the velocity if the satellite is moved to an orbital radius of 5r?(1 point)

Responses

15√v
the fraction with numerator 1 and denominator square root of 5 v

15v
1 fifth v

5–√v
square root of 5 v

5v
5 v

the fraction with numerator 1 and denominator square root of 5 v

Which of the following statements about Newton's theory of universal gravitation are true? Select the three correct answers.(2 points)

Responses

Gravitational force increases as the mass of objects increases.
Gravitational force increases as the mass of objects increases.

Gravitational force increases as mass of objects decreases.
Gravitational force increases as mass of objects decreases.

Gravitational force increases as the distance between objects increases.
Gravitational force increases as the distance between objects increases.

Gravitational force increases as the distance between objects decreases.
Gravitational force increases as the distance between objects decreases.

The theory applies only to objects on Earth.
The theory applies only to objects on Earth.

The theory applies to all objects in the universe.

Gravitational force increases as the mass of objects increases.

Gravitational force increases as the distance between objects increases.
The theory applies to all objects in the universe.