Two balloons are charged with an identical quantity and type of charge:-0.4 C. They are held apart at a separation distance of 20 m. Determine the magnitude of the electrical force between them.
A.5,400,000 N
B.3,600,000 N
C.1,800,000 N
D.1,200,000 N

These models show the electron structures of two different nonmetal elements. which element is likely more reactive, and why? element 1 is more reactive because it has fewer electron shells and is toward the top of its group on the periodic table. element 1 is more reactive because it has more electrons in its valence shell and is farther to the right on the periodic table. element 2 is more reactive because it does not have a valence shell close to the nucleus, so it will attract electrons. element 2 is more reactive because it does not have a full valence shell, so it will attract electrons.

An observer that stands still as the electron moves by him, will observe

To travel at constant speed, a car engine provides 24kw of useful power. the driving force on the car is 600n. at what speed does it travel?