720 hats were sold;
20% of 600 = 120
600 + 120 = 720
Explanation:
Wien’s Law:
The law states that the wavelength at which black body emits maximum heat is inversely proportional to the temperature of the body in Kelvins.
1) Walls at 300 K
2) Ice water at 273 K :
3) Hot water at 373 K :
4)Skin at 310 K:
5)An incandescent light bulb at 3000 K
For earthquakes, there is a lapsed time between the arrival of the
p-wave and the s-wave, because the waves travel at different speeds. The length
of this period of time determine the
distance to the epicenter.
Earthquakes create seismic waves. P waves are faster than S
waves. As the P and S waves move out from an earthquake, the P waves get ahead
of the S waves. The distance of a seismic station from an earthquake can be
determined from the time difference between the time of arrival of the first P
wave and the first S wave.
Answer:
It is B: To keep their bloodline pure.
Explanation:
I got this right on my test btw