According to newton’s law of universal gravitation, which statements are true?

a) as we move to higher altitudes, the force of gravity on us decreases.

b)as we move to higher altitudes, the force of gravity on us increases.

c)as we gain mass, the force of gravity on us decreases.

d)as we gain mass, the force of gravity on us increases.

e)as we move faster, the force of gravity on us increases.

Answer

A) As we move to higher altitudes, the force of gravity on us decreases.

Explanation

Gravitational force is the force of attraction between two bodies that given masses.

Gravitational force of the earth exists between the earth and other objects close to it.

This force is inversely to the square of distance between them. This means as the distance between the earth and the object increases, the gravity decreases.

∴ the correct answer is: A) As we move to higher altitudes, the force of gravity on us decreases.

when a device is used in a circuit in which the voltage is 81 v, the current flowing through the device is 3 a. what is the resistance of the device?

a. 27 ω

b. 40.5 a

c. 243 ω

d. 243 a

the correct answer is a. 27