The outer planets (Jupiter, Saturn, Uranus, Neptune) are called the "<u>GAS</u> giants".
The rocky planets are called "rocky" because they're made of <u>ROCK</u>.
Does this help guide you to the correct choice ?
Here's another hint: The MOST dense planet in our solar system, the one we call "Earth", is one of the 'rocky planets'.
<h3><u>Answer;</u></h3>
- Almost all of the energy on Earth comes from the Sun.
- The energy in fossil fuels originally came from the Sun.
- Plants convert the energy of sunlight into chemical energy.
<h3><u>Explanation</u>;</h3>
- <u>Many different forms of energy are used here on surface of the earth, but almost all of them originate from the sun, not just light and heat (thermal) energy.</u>
- <u>Plants convert light energy from the sun into chemical energy (food) by the process of photosynthesis.</u> Animals eat plants and use that same chemical energy for all their activities
- Heat energy from the sun causes changing weather patterns that produce wind. Wind turbines then convert wind power into electrical energy.All these conversions to different forms obeys the law of conservation of energy.
- <em><u>Fossil fuels are energy sources that were created over very long periods of time from decayed and fossilized living matter, and energy in these living organisms originally came from the sun.</u></em>
Answer:
Given that
T= 0.43 s
Radius of the ball path's , r=2.1 m
a)
We know that
f= 1/T
Here f= frequency
T= Time period
Now by putting the values
f= 1/T
T= 0.43 s
f= 1/0.43
f=2.32 Hz
b)
We know that
V= ω r
ω = 2 π f
ω=Angular speed
V= Linear speed
ω = 2 π f=ω = 2 x π x 2.32 =14.60 rad/s
V= ω r= 14.60 x 2.1 = 30.66 m/s
c)
Acceleration ,a
a =ω ² r
a= 14.6 ² x 2.1 = 447.63 m/s²
We know that g = 10 m/s²
So
a= a/g= 447.63/10 = 44.7 g m/s²
a= 44.7 g m/s²
Deciliter = 1/10 of a liter
Milliliter = 1/1000 of a liter
So, there are 100 milliliters in one deciliter
Answer:
Prevost's theory of exchanges stated that each body radiates to, and receives radiation from, other bodies. ... Prevost went on to comment that "The heat of several portions of space at the same temperature, and next to one another, is at the same time in the two species of equilibrium."
Explanation: