The S.I. unit used in expressing magnetic field strength is the ________.
Fill in the blank(s) with the appropriate word(s).
Tesla
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A 2.0-kg object has a velocity of 
m/s at t = 0. A constant resultant force of 
then acts on the object for 3.0 s. What is the magnitude of the object's velocity at the end of the 3.0-s interval?
A. 9.2 m/s B. 6.3 m/s C. 8.2 m/s D. 7.2 m/s E. 7.7 m/s
A 1000-kg barge is being towed by means of two horizontal cables. One cable is pulling with a force of 80.0 N in a direction 30.0° west of north. The second cable pulls in a direction 20.0° east of north
What should the magnitude of its pulling force be so that the barge will accelerate northward? A) 127 N B) 120 N C) 117 N D) 73.7 N E) 58.5 N
An object on the flat bed of a truck that is accelerating along a straight horizontal road. The coefficient of static friction is 0.300 in this case. Of the following choices, which is the lowest value of acceleration that would result in the object sliding on the bed of the truck?
a. 0.280 m/s2 b. 0.310 m/s2 c. 2.93 m/s2 d. 2.99 m/s2 e. 3.02 m/s2
If in a double-slit experiment the distance to the screen is increased, which of the following happens to the interference pattern shown on the screen?
A) The minima get closer together. B) The maxima stay at the same position. C) The minima and maxima stay at the same position. D) The maxima get further apart. E) The minima stay at the same position.