Question 5 of 8 What is the electric force between two point charges when 91 = +2e, 92 = +3 e,
and r = 0.05 m?
(FE
ка
k92
e- 1.6 × 10-1°C, k- 900 x 10°Nom/C?)
X
A. 5.5 x 10-25 N
B. -5,5 x 10-25 N
C. -1.1 x 10-24 N
O D. 1.1 x 10-24 N

What is the mass of the water that is being heated? it requires 2,500 joules to raise a certain amount of water (c = 4.186 jig c) from 20.0°c to 60.0°c. o 159 o 40 g o 63 g o 80 g

During cooling, the kinetic energy of the molecules falls. why does this happen? a.the motion of the molecules increases. b. the motion of the molecules slows down. c.the van der waals forces between molecules decrease d. the forces of attraction between the molecules are overcome.

What are the examples for scaler quantities