An object has an initial position 
, but is found a short time later at position 
, where 
In a frame in standard orientation on the earth’s surface, what is the direction of the object’s displacement during this time interval?
A. East
B. West
C. North
D. South
E. Down
D. South
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A conducting sphere of radius 20.0 cm carries an excess charge of +15.0 µC, and no other charges are present. (k = 1/4??0 = 8.99 × 109 N ? m2/C2) The potential (relative to infinity) due to this sphere at a point 12.0 cm from its center is closest to
A) zero. B) 674 kV. C) 1130 kV. D) 3380 kV. E) 9380 kV.
The color force between quarks is carried by __________
Fill in the blank(s) with correct word
Which of the following sequences of electromagnetic radiation is correct in order of increasing energy?
a. gamma rays, X-rays, infrared, radio b. radio, microwave, gamma rays, UV c. visible, UV, X-rays, gamma rays d. visible, microwave, radio, infrared e. infrared, visible, radio, X-rays
Jane plans to fly from Binghampton, New York, to Springfield, Massachusetts, about 280 km due east of Binghampton. She heads due east at 280 km/h for one hour but finds herself at Keene, which is 294 km from Binghampton in a direction 17.8 degrees north of due east. What was the wind velocity?
a. 14 km/h, E b. 14 km/h, W c. 14 km/h, N d. 90 km/h, S e. 90 km/h, N