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

What does the cell nucleus do or, how does it function?

Asap! will give brainiest when a heat wave strikes a region causing more people to run air-conditioning units, electrical demand increases. what needs to be done to meet this increased demand? raising the control rodslowering the control rodsremoving the control rods

Building glycogen from glucose molecules is an example of