Number 2. This is a power plant windmill. Kinetic energy from the wind is being converted to mechanical energy.
Number 3. Those are energy power plants which involve coal being burned. Chemical energy is being converted to heat energy and then into kinetic energy.
Number 3. You're welcomed to use whatever object you'd like. An example you could put is a car. Chemical energy is being converted to mechanical energy.
Hope that helps. -UF aka Nadia
Answer:
2.281*10^28 photons
Explanation:
Data
- Volume of coffee, V = 245 mL
- Temperature change of the coffee, ΔT = 62 - 25 = 37 °C
- Density of coffee, D = 0.997 g/mL
- Specific heat capacity of coffee, cp = 4.184 J/(g*K) = 4.184 J/(g* °C)
- wavelength of the microwave radiation, λ = 12 cm = 0.12 m
Mass of the coffee
m = D*V = 0.997 * 245 = 244.265 g
Energy (heat) absorbed by the coffee
Q = m*cp*ΔT = 244.265 * 4.184 * 37 = 37814.1761 J
Energy of the photon
E = h*c/λ
where h is the Planck constant ( 6.63 x 10^(-34) J*s) and c is the speed of light at vacuum (3*10^8 m/s)
E = 6.63 x 10^(-34)*3*10^8/0.12 = 1.6575*10^(-24) J
number of photons required = total energy required / energy per photon
n = 37814.1761/1.6575*10^(-24) = 2.281*10^28 photons
Answer:
FALSE
Explanation:
Sedimentary rocks are defined as those rocks that are formed due to the combined effect of compaction and cementation process. In order to form sedimentary rocks, at first, the sediments that are transported from other places must be deposited. This deposited sediments over a due course of time, are subjected to high compaction due to the weight of the overlying weight. This results in the transformation of loose sediments into hard rocks. This how sedimentary rocks are formed which are comprised of sand-size particles. For example, Shale, Sandstone, and Mudstone.
Thus, both the compaction and cementation processes are important for the formation of sedimentary rocks.
Hence, the above-given statement is False.
Answer:
Helium
Explanation: The ionization energy decreases from the top to bottom in groups. And increases from left to the right across a period. Therefor Helium has tge largest first ionization energy, while francium has one of the lowest.
Answer:
The answer to your question is 60 ml of solution 5% and 40 ml of solution 10 %
Explanation:
Data
acetic acid = 5% = concentration 1
acetic acid 2 = 10% = concentration 2
final solution = 7 % =
final volume = 100 ml
Process
1.- Write an equation of the process
x = volume of solution 5%
100 - x = volume of solution 10%
Final concentration x final volume = concentration 1 x volume 1 + concentration 2 x volume 2
0.07(100) = 0.05x + 0.10(100 - x)
2.- Solve for x
7 = 0.05x + 10 - 0.1x
7 - 10 = 0.05 - 0.1 x
- 3 = -0.05 x
x = -3/-0.05
x = 60 ml of solution 5%
3.- Calculate the volume of solution 10%
Volume of 10% = 100 - 60
Volume of 10% = 40 ml