Which statement best describes the mass of gold and iron atoms based on their respective specific heat values? choices: gold atoms are heavier than iron atoms. iron atoms are heavier than gold atoms. gold atoms have the same mass as iron atoms.

Acharge q experiences no net force at a particular point in space. which of the following situations described below must always be true? -there are no other charges nearby. -if there are other charges nearby, they must all have the same sign as q. -if there are other charges nearby, they must all have the opposite sign of q. -if there are other charges nearby, the total positive charge must equal the total negative charge. -none of the above

Why should the wavelength scale of spectroscope be calibrated

Calculate 9 ∙ 10-5 divided by 3 ∙ 10-9. (box after the "10" in answer is for the