A15.0-kilogram mass is moving at 7.50 meters per second on a horizontal, frictionless surface. what is the
total work that must be done on the mass to increase its speed to 11.5 meters per second?
(1) 120. j (3) 570. j
(2) 422 j (4) 992 j

Drag each item into the proper state of matter category.

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?

Why don't you see your reflection in water with waves or repples