Iwhat is your mass in kilograms of you weigh 120 pounds?

Atomic nuclei of almost all elements consist of

Which are true about beta reactions? there will be more than one answer. a. it has no change b. it doesn't change the mass of the number c. it has a mass of 0.0005 atoms d. it causes transmutation.

The first law of thermodynamics states that heat added to a system is neither created nor destroyed but is as it changes into other forms of energy.