The dimensional equivalence of the quantity "momentum" in terms of the fundamental quantities (mass, length, time) is:
a. MLT?1.
b. ML2T?2.
c. MLT.
d. MLT?2.
a
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The moons of Mars are believed to be
a. composed primarily of iron and nickel. b. composed primarily of frozen gases of water and carbon dioxide. c. orbiting Mars in a direction opposite to the direction that Mars rotates. d. formed from material ejected from Olympus Mons and other large volcanoes on Mars. e. captured asteroids.
A ball is thrown vertically upward with an initial speed of 20 m/s. Two seconds later, a stone is thrown vertically (from the same initial height as the ball) with an initial speed of 24 m/s. At what height above the release point will the ball and stone pass each other?
a. 17 m b. 21 m c. 18 m d. 27 m e. 31 m
Distinguish between laminar and turbulent flow of fluids
What will be an ideal response?
A straight wire is carrying a current of 2.0 A. It is placed at an angle of 60° with respect to a magnetic field of strength 0.20 T. If the wire experiences a force of 0.40 N, what is the length of the wire?
A) 1.8 m B) 1.6 m C) 1.2 m D) 1.0 m E) 1.4 m