The problem statement is simply asking us to convert units. We convert from units of ft^3 to units of m^3. To do this, we need a conversion factor. For this case, we use 1 m is equal to 3.28084 ft. We do as follows:
5.0 ft^3 ( 1 m / 3.28084 ft )^3 = 0.1416 m^3
<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:
Explanation:
F = ma = mΔv/Δt = 90(14 - 10) / (6 - 0) = 60 N
p = mv = 90(14) = 1,260 kg•m/s (for bicyclist AND bike together)
Answer:
(3) mass-energy must be conserved
Explanation:
As we know that gamma rays are mass less and charge less photons which will have sufficient energy.
Now in case of Pair production the gamma photons convert its whole energy into mass by the law of Einstein's mass energy equivalence relation.
As per his relation we can say
![E = \Delta m c^2](https://tex.z-dn.net/?f=E%20%3D%20%5CDelta%20m%20c%5E2)
here we will have
[tex]\Delta m[\tex] = mass produced
now we also have to think that here the two particles must have a pair of particles and antiparticles so that the combined mass system will have energy equivalent to the energy of gamma photons and also it must follow the conservation of charge
So here it will form an electron and a positron such that total charge will be zero and the energy will be same as energy of gamma photon.
Use the kinematic equation: Vf=Vi+at
Then plug;
Vi=14 m/s
a=5 m/s²
t=20 s. Therefore;
Vf=14+(5*20)
Vf=114 m/s.