How are mass and weight different?
A. Weight is the amount of matter an object contains; mass is the type of matter an object is made of.
B. Mass is the amount of matter an object contains; weight is how much mass an object contains.
C. Weight is a measure of how much gravity pulls an object; mass is how much matter the object has.
D. There is no difference; they are the same.
Answer: C
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At absolute zero
A. all molecular motion is ceasing B. the pressure of an ideal gas is zero C. the volume of an ideal gas is zero D. the Celsius temperature is zero
The great contribution of Tycho Brahe was to ________
A) offer the first detailed model of a Sun-centered solar system, thereby beginning the process of overturning the Earth-centered model of the Greeks B) observe planetary positions with sufficient accuracy so that Kepler could later use the data to discover the laws of planetary motion C) discover four moons orbiting Jupiter, thereby lending strong support to the idea that the Earth is not the center of the universe D) discover that planets orbit the Sun in elliptical orbits with varying speed
Identical 2.0-?C charges are located on the vertices of a square with sides that are 2.0 m in length. Determine the electric potential (relative to zero at infinity) at the center of the square
a. 38 kV b. 51 kV c. 76 kV d. 64 kV e. 13 kV
A 4.0-?C charge is situated at the origin of an xy-coordinate system. What is the potential difference between the points x = 4.0 m and y = 2.0 m because of this charge?
A) -9.0 × 103 V B) 9.0 × 103 V C) -36 × 103 V D) 36 × 103 V E) 0 V