Forces that are equal in size and opposite in direction are known as
a. balanced forces
b. net forces
c. friction forces
d. accelerated force
Ans: a. balanced forces
You might also like to view...
Discrete spectral lines are observed when excitation occurs in a
A) solid. B) liquid. C) gas. D) superconductor. E) all of the above
Current: What current is flowing in a wire if 0.67 C of charge pass a point in the wire in 0.30 s?
A. 2.2 A B. 0.67 A C. 0.30 A D. 0.20 A
A true statement about the modern theory of light is that
A. light waves do not carry energy but photons can. B. light can behave like a wave or a particle depending on the situation. C. light can only behave like a particle in atoms. D. photons do not have a frequency.
Three point charges are placed on the x-axis, as follows. A charge of +2.0 ?C is at the origin, a charge of -2.0 ?C is at x = 50 cm,
and a charge of +4.0 ?C is at x = 100 cm. What are the magnitude and direction of the electrostatic force on the charge at the origin due to the other two charges? (k = 1/4??0 = 9.0 × 109 N ? m2/C2 )