A quantity that has both a magnitude and direction associated with it is called a __________
Fill in the blank(s) with correct word
vector
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Sunspots are parts of active solar regions dominated by magnetic fields that encompass all layers of the Sun's atmosphere
a. True b. False Indicate whether the statement is true or false
Assume that Hubble's constant is 22 kilometers per second per million light-years. Then we would expect a galaxy 100 million light-years away to be moving (Assume the motion is due only to Hubble's law.)
A) away from us at 2,200 km/s B) away from us at 220 km/s C) toward us at 2,200 km/s D) away from us at 22,000 km/s
A tiny object carrying a charge of +3.00 ?C and a second tiny charged object are initially very far apart
If it takes of work to bring them to a final configuration in which the +3.00 ?C object i is at x = 1.00 mm, y = 1.00 mm, and the other charged object is at x = 1.00 mm, y = 3.00 mm, find the magnitude of the charge on the second object. (k = 1/4??0 = 8.99 × 109 N • m2/C2) A) 2.15 ?C B) 4.30 ?C C) 10.74 ?C D) 4.30 nC
Are sunspots really dark and cool?
What will be an ideal response?