Answer:
The sun heats the earth through radiation. Since there is no medium (like the gas in our atmosphere) in space, radiation is the primary way that heat travels in space. When the heat reaches the earth it warms the molecules of the atmosphere, and they warm other molecules and so on.
Answer: "converted"
Energy can be converted from one form to another
Explanation:
The law of conservation of energy states that energy can neither be created nor destroyed but converted from one form to another.
For instance:
- an electric generator convert mechanical energy to electrical energy
- a solar panel system convert solar energy to electrical energy.
- an electric pressing iron convert electrical energy to heat energy
Thus, energy can be converted from one form to another
1.97 E-7 m should be right. I took this a while ago.
Hi there!
We can use Newton's Second Law:
∑F = net force (N)
m = mass (kg)
a = acceleration (m/s²)
We are given the mass and acceleration, so:
∑F = 20 · 2 = <u>40 N</u>
