Velocity: Which of the following quantities has units of a velocity? (There could be more than one correct choice.)
A. 40 km southwest
B. -120 m/s
C. 9.8 m/s2 downward
D. 186,000 mi
E. 9.8 m/s downward
Answer:
B. -120 m/s
E. 9.8 m/s downward
You might also like to view...
Heat (Q) is the amount of _____________that is transferred from an area at high temperature to an area at low temperature.
Fill in the blank(s) with the appropriate word(s).
A light ray is incident on the surface of water (n = 1.33) at an angle of 60° relative to the normal to the surface. The angle of the reflected wave is
a. 80° b. 40° c. 20° d. 60° e. 30°
If a circle has a radius of 1.109 m, what is its area expressed to the correct number of significant figures?
A) 3.86 m2 B) 3.863 m2 C) 3.864 m2 D) 3.8638 m2 E) 3.86379 m2
A certain electromagnetic field traveling in vacuum has a maximum electric field of 1200 V/m. What is the maximum magnetic field of this wave? (c = 3.0 × 108 m/s)
A) 8.7 × 10-6 T B) 3.4 × 10-4 T C) 2.2 × 10-5 T D) 4.0 × 10-6 T E) 9.6 × 10-6 T