Addition by 1. Components: Vector 
has a magnitude of 6.0 m and points 30° north of east. Vector 
has a magnitude of 4.0 m and points 30° west of north. The resultant vector 
+ 
is given by
A. 9.8 m at an angle of 64° east of north.
B. 9.8 m at an angle of 26° north of east.
C. 7.2 m at an angle of 26° east of north.
D. 3.3 m at an angle of 26° north of east.
E. 3.3 m at an angle of 64° east of north.
Answer: C
You might also like to view...
An observer located at Earth's North Pole (90°N
latitude) would observe that all of the stars a) move eastward across the sky. b) rise in the east and set in the west. c) move in concentric circles about the North Star. d) are completely stationary in the sky.
RLC Circuits: A 120-V rms signal at 60 Hz is applied across a series combination of a 30-mH inductor and a 100-? resistor. What is the rms value of the voltage across the resistor?
A. 120 V B. 60 V C. 100 V D. 150 V E. 0.70 V
Two moons orbit a planet in nearly circular orbits. Moon A has orbital radius r, and moon B has orbital radius 4r. Moon A takes 20 days to complete one orbit. How long does it take moon B to complete an orbit?
A) 20 d B) 40 d C) 80 d D) 160 d E) 320 d
A quantity of an ideal gas is kept in a rigid container of constant volume. If the gas is originally at a temperature of 19°C,
at what temperature will the pressure of the gas double from its original value? A) 91°C B) 38°C C) 311°C D) 273°C E) 122°C