A sample of iron absorbs 81.0 J of heat, upon which the temperature of the sample increases from 19.7 Celsius to 28.2 Celsius. If the specific heat of iron is 0.450 J/g-K, what is the mass (in grams) of the sample

The blackbody curve for a star name zeta is shown below. what is the peak wavelength for this star ?

Which is true of a liquid? it has a definite volume but not a definite mass. it has a definite mass but not a definite volume. it has a definite volume but not a definite shape. it has a definite shape but not a definite volume.

What is the molecular weight of copper