Which type of force would be the equal and opposite force to a gravitational force?
a. gravitational
b. electromagnetic
c. strong
d. weak
e. It could be any one of the above or some combination of them.
a
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The position of an object that is oscillating on an ideal spring is given by the equation x = (12.3 cm) cos[(1.26s-1)t]. At time t = 0.815 s,
(a) how fast is the object moving? (b) what is the magnitude of the acceleration of the object? What will be an ideal response?
Which statement is always correct when applied to a charge distribution located in a finite region of space?
A. Electric potential is always zero at infinity. B. Electric potential is always zero at the origin. C. Electric potential is always zero at a boundary surface to a charge distribution. D. Electric potential is always infinite at a boundary surface to a charge distribution. E. The location where electric potential is zero may be chosen arbitrarily.
The troposphere acquires most of its energy
content by a) latent heat transfer. b) Rayleigh scattering. c) absorption of terrestrial radiation. d) positive albedo changes.
Microscopic properties of an object:
a. are just small versions of the macroscopic properties. b. are completely unrelated to macroscopic properties. c. are overall large scale properties. d. are the properties of particles that make up the object. e. are the average of many properties of individual particles.