Four students measure the mass of an object, each using a different scale. They record their results as follows:
Student A B C D E
Mass (g) 49.06 49 50 49.1 49.061
Which student used the least precise scale?
A) A
B) B
C) C
D) D
E) E
C
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The largest volcano in the solar system, ________, is found on Mars
Fill in the blank(s) with correct word
A single circular (radius = R) loop of wire is located in the yz plane with its center at the origin. The loop has a clockwise current as seen from the point (+R, 0, 0). The direction of the magnetic field at the point
A.
and at the point (+R, 0, 0) is ?
.B.
and at the point (0, +2R, 0) is ?.C.
and at the point (+R, 0, 0) is +.D.
and at the point (0, +2R, 0) is +.E.
The vertical acceleration of a projectile
a. equals g pointing downwards. b. equals g pointing upwards. c. equals g pointing sometimes upwards and other times downwards. d. is zero. e. continuously increases.
When the bent wire is lowered in the water and then raised to the surface, a further attempt to raise it causes the spring to
1) stretch 2) contract 3) stay the same due to water's 4) buoyant force. 5) surface tension. 6) capillarity.