Answer:
2. the force of the stone's gravity polling up on the Earth
Explanation:
As we apply the force on the stone, the acting gravity on the stone resists as a reaction force. But that also depends upon the angle of force applied. There will be less force required on the horizontal component than vertical relative to gravity. But the force of friction aided by gravity always resists as a reaction force.
Answer:
38.7 °C.
The final temperature (reached by both copper and water) is 38.7 °C.
So the answer is probably C.
Answer:
All electromagnetic radiation, regardless of its wavelength, travels at what is called the "speed of light". In a vacuum, it is measured as 299,792,458 meters per second. 3.0 x 108 meters per second.
You will need to convert the diameter to radius. 3840km diameter will be 1740km radius.
<span>4 x 3.1416 x 1740² = ~38,046,032km² surface area.</span>