Answer:
-0.10472
Explanation:
Remember that any <u><em>clockwise</em></u> rotation is considered negative, and any <u><em>counterclockwise</em></u> rotation is considered positive.
The formula for period is:
Solve for and you get:
The period is 60 seconds so make that division and you're left with -0.10472 or -0.10
if significant figures apply (negative because the rotation is clockwise).
<u>Answer:</u> The number of photons are
<u>Explanation:</u>
We are given:
Wavelength of microwave = (Conversion factor:
)
where,
h = Planck's constant =
c = speed of light =
= wavelength = 0.122 m
Putting values in above equation, we get:
Now, calculating the energy of the photon with 88.3 % efficiency, we get:
Density of water = 1 g/mL
Volume of water = 165 mL
Putting values in above equation, we get:
where,
m = mass of water = 165 g
c = specific heat capacity of water = 4.184 J/g.°C
= change in temperature =
Putting values in above equation, we get:
This energy is the amount of energy for 'n' number of photons.
q = 53127.72 J
E =
Putting values in above equation, we get:
Hence, the number of photons are