Brian is repairing an old alarm clock. He needs to replace a device that converts the electric energy into sound energy. Which of these devices should he use? A.
battery
B.
buzzer
C.
motor
D.
switch

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.

Write down two additional questions about earth's magnetic field that will make your presentation more informative.

The precision of a voltmeter is ±0.005 v. the accepted value for a measurement is 9.016 v. which measurement is in the accepted range? 9.005 v 9.006 v 9.018 v 9.025 v