Angle of incidence is equal to the angle of reflection a) always
b) under special conditions
c) sometimes
d) never

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?

Holes drilled several kilometers into earth’s crust provide direct evidence about earth’s interior in the form of

Ascientist wants to test ways to reduce pollution in lake . what is the bestway of doing this