A component of a vector can be greater than the vector's magnitude
Indicate whether the statement is true or false
FALSE
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Magnetic Field of a Long Wire: A horizontal wire carries a current straight toward you. From your point of view, the magnetic field caused by this current
A. points directly away from you. B. points to the left. C. circles the wire in a clockwise direction. D. circles the wire in a counter-clockwise direction.
What is the net power that a person with surface area of 1.20 m2 radiates if his emissivity is 0.895, his skin temperature is 27°C, and he is in a room that is at a temperature of 17°C? (? = 5.67 × 10-8 W/m2 ? K4 )
A) 65.7 W B) 60.3 W C) 64.8 W D) 68.4 W E) 62.6 W
Work: A person carries a 25.0-N rock through the path shown in the figure, starting at point A and ending at point B. The total time from A to B is 1.50 min. How much work did gravity do on the rock between A and B?
A. 625 J B. 20.0 J C. 275 J D. 75 J E. 0 J
For a nova to occur, the system must have already been a
A) astrometric binary. B) detached binary. C) spectroscopic binary. D) mass-transfer binary. E) eclipsing binary.