What happens if two sound waves having the same frequency interfere in phase? A.
The amplitude of the resultant wave is less than the amplitude of the two individual waves.
B.
The amplitude of the resultant wave is greater than the amplitude of either of the two individual waves.
C.
The amplitude of the resultant wave is equal to the mean of the amplitudes of the two individual waves.
D.
The amplitude of the resultant wave is equal to the amplitudes of the two individual waves.

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?

If the ama of the inclined plane below is 2, calculate the ima and efficiency. ima = efficiency =

Aboy with a mass 25 kg climbs into a small tree. he sits on a branch that is 2.o m above to the ground.what is his gravitational potential energy above the ground?