Which of these describes the electrostatic force
a. particles of the same charge repel each other
b. particles of different masses repel each other
c. particles of opposite charge repel each other
d. particles without charge repel each other

Calculate the estimated density of each ball. use the formula d = m/v where d is the density, m is the mass, and v is the volume. record your calculations in table a of your student guide. given that the density of water is 1.0 g/cm3, make a prediction about whether each ball will float in water. record your prediction in table a. what is the estimated density of the table tennis ball? record your answer to the nearest hundredth