Star A has a surface temperature of 8000K and its thermal emission peaks around 360nm. Star B is twice as cold, with a temperature of 4000K. Its thermal emission must peak around... 90nm

180nm

360nm

725nm

1450nm

Awave is produced in a rope. the wave has a speed of 33 m/s and a frequency of 22 hz.

How many atoms of nitrogen are in the chemical formula ni(w on

Abag of potato chips contains 2.00 l of air when it is sealed at sea level at a pressure of 1.00 atm and a temperature of 20.0 deg c. what will be the volume of the air in the bag if you take it with you, still sealed, to the mountains where the temperature is 7.00 deg c and atmospheric pressure is 70.0 kpa? assume that the bag behaves like a balloon and that the air in the bag is in thermal equilibrium with the outside air.