Answer:
<u>1.8kJ</u>
Explanation:
Formula :
<u>Energy used = Power x time</u>
<u />
===============================================================
Given :
⇒ Power = 30 W
⇒ Time = 1 minute = 60 seconds
=============================================================
Solving :
⇒ Energy used = 30 W × 60 s
⇒ Energy used = 1,800 J
⇒ Energy used = <u>1.8kJ</u>
The sentence that would best describe the crater is A. Concave because
concave means curves inward like if you cut open a hollow sphere it is a concave shape.
The strength of the gravitational forces between two objects depends on
the masses of both objects and on the distance between their centers.
I don't think you can say that one or the other is the "<em>main</em>" influence.
-- If each mass is multiplied by ' k ', then the forces between them are
multiplied by ' k² '.
-- And if the distance between them is multiplied by ' k ', then the forces
between them are divided by ' k² '.
Seems pretty equal to me.
