Forces that act on an object without changing its motion are

a= balanced forces
b= unbalanced forces
c= action forces
d= reaction forces

Which atom or ion is the largest? a. k b. k+ c. ca d. ca2+ e. li

Which of these statements explains the difference between nuclear binding energy and the strong nuclear force ?

What would happen to a volleyball left outside in the winter? o o o o a. it would expand. b. it would lose air. c. it would shrink. d. it would explode.