As you comb your hair, electrons are rubbed onto the comb, which becomes
A) negatively charged.
B) positively charged.
C) ionized.
Answer: A
You might also like to view...
Which of the following is a prototype of a new class of objects defined by the International Astronomical Union (IAU) as dwarf planets?
A) Pluto B) Uranus C) Titan D) Triton
The superposition of two waves
?
and
?
at the location x = 0 in space results in
A. beats at a beat frequency of 3 Hz. B. a pure tone at a frequency of 153 Hz. C. a pure tone at a frequency of 156 Hz. D. beats at a beat frequency of 6 Hz. E. beats at a frequency of 156 Hz.
An object is dropped from a tall building. The net force acting on the object is the difference between the object's _________ and the force of air resistance
Fill in the blank(s) with correct word
Which of the following characteristics are held in common by both gravitational and electrostatic forces when dealing with either point masses or charges?
a. potential energy is a function of distance of separation b. forces are conservative c. inverse square distance law applies d. all of the above choices are valid