A current-carrying wire of length 50 cm is positioned perpendicular to a uniform magnetic field. If the current is 10.0 A and it is determined that there is a resultant force of 7.5 N on the wire due to the interaction of the current and field, what is the magnetic field strength?
a. 1.8 103 T
c. 6.7 103 T
b. 1.5 T
d. 0.60 T
Question 2
Water is being sprayed from a nozzle at the end of a garden hose of diameter 2.0 cm. If the nozzle has an opening of diameter 0.50 cm, and if the water leaves the nozzle at a speed of 15 m/s, what is the speed of the water inside the hose?
a. 0.63 m/s
c. 2.5 m/s
b. 0.94 m/s
d. also 10 m/s
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