A vertical wire carries a current straight up in a region where the magnetic field vector points toward the north. What is the direction of the magnetic force on this wire?
A) downward
B) toward the north
C) toward the east
D) toward the west
E) upward
F) toward the south
D
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What is the process in which an enzyme makes a reaction run much faster than it would on its own?
a. redox reaction b. allosteric regulation c. induced fit d. catalysis e. phosphorylation
An electric heater draws an average power of 1100 Watts when plugged into a 110 V-rms outlet. Calculate the resistance of the heater and the rms current
a. 11?, 10 A (rms) b. 110?, 10 A (rms) c. 10?, 11 A (rms) d. 10?, 110 A (rms) e. 0.09?, 11 A (rms)
A light ray bends when it goes from one medium to another because of diffraction
Indicate whether the statement is true or false
Determine the approximate value for the convective heat transfer coefficient for water boiling in vertical tubes at a superheat temperature of 120ºC by using Equation 10-56. Compare this result to that using Equation 10-6. Assume the water pressure is 500 kPa.
