Aloop of radius r = 3.0 cm is placed parallel to the xy-plane in a uniform magnetic field = 0.75 t . the resistance of the loop is 18 ω. starting at t = 0, the magnitude of the field decreases uniformly to zero in 0.15 seconds. what is the magnitude of the electric current produced in the loop during that time?
a) 0.79 ma
b) 3.9 ma
c) 1.7 ma
d) 2.1 ma
e) 0.20 ma

Based on the concept of the wave-like nature of light, huygens' theory of light postulates that the more light was "bent" by a substance the slower it would move while traversing across that substance. a) deflection b) interference c) refraction d) resonance

Assume that a person skiing high in the mountains at an altitude of h = 15100 ft takes in the same volume of air with each breath as she does while walking at sea level. determine the ratio of the mass of oxygen inhaled for each breath at this high altitude compared to that at sea level. assume that the air composition (i.e. % of air that is oxygen) is the same at sea level as it is at 15100 ft.

Compare the horizontal displacement of the two balls as they travel to the ground. what do you observe?