The net force on a moving object suddenly becomes zero. The object then
A. stops abruptly.
B. stops during a short time interval.
C. changes direction.
D. continues at constant velocity.
E. slows down gradually.
D. continues at constant velocity.
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One mole of aluminum consists of ______________ aluminum atoms
Fill in the blank(s) with correct word
A 200-loop coil of cross sectional area 8.5 cm2 lies in the plane of the paper. Directed out of the plane of the paper is a magnetic field of 0.06 T. The field out of the paper decreases to 0.02 T in 12 milliseconds
(a) What is the magnitude of the change in magnetic flux enclosed by the coil? (b) What is the average voltage induced in the coil as the flux is changing? (c) If the coil has a resistance of 4.0 ohms, what is the magnitude of the current in the coil?
A uniform thin wire has a length 
and is bent into a semicircular arc of radius R. If the wire starts at (x, y) = (R, 0) and curves counterclockwise to (x, y) = (?R, 0), what is the y coordinate of its center of mass?
What will be an ideal response?
Which of the following molecules is a branched hydrocarbon?
A) a B) b C) c D) All of the above are branched hydrocarbons. E) only a and b