A force of 450 N accelerates a box across a frictionless surface at a rate of 15 m/s2. What is the mass of the box? 30 kg
6,750 kg
6,750 N
30 N

Using the periodic table, complete the table to describe each atom. type in your answers.a ? b? c? d? e? f?

Neils bohr believed that electrons orbited the nucleus in different energy levels, based on strong support from

In the millikan oil drop experiment they determined that every drop had a charge which was a while number multiple of -1.60x10^-19. if a drop has a total charge of -9.60x10^-19 then how many excess electrons are contained within the drop?