Electric potential energy is the energy of a charge based on
A.
its speed and the direction of its motion relative to a second charge.
B.
the magnitude of its charge and its position in an electric field.
C.
its mass and height above a given reference point in an electric field.
D.
the magnitude of its charge, its mass, and its speed.

In a load, the load is paralel to the shaft. n a. angular n b. thrust n c radial n d. none of the above

Very large accelerations can injure the body, especially if they last for a considerable length of time. one model used to gauge the likelihood of injury is the severity index ( ), defined as =/ . in the expression, is the duration of the accleration, but is not equal to the acceleration. rather, is a dimensionless constant that = the number of multiples of that the acceleration is equal to. in one set of studies of rear-end collisions, a person's velocity increases by 13.7 km/h with an acceleration of 36.0 m/s2 . let the + direction point in the direction the car is traveling. what is the severity index for the collision?

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.