A student weighed the same penny four times on the same balance. Their results are: 1 Mass (grammes) 1.203 1.215 1.220 1.225 4 a) Determine the average density (2 points) b) Determine the average absolute deviation [2 points) ci Determine the percent or relative deviation. [2 points)

How is acceleration calculated? a. initial velocity - final velocity / timeb. initial velocity + final velocity / timec. final velocity - initial velocity / timed. final velocity / timele select the best answer from the choices provided0oood00save and exitnextmark this and return

Which of the following are properties of mechanical waves? check all that apply ⭕️ particles of the medium move back and fourth, but do not move with the wave. ⭕️ the particles of the medium always move parallel to the wave motion. ⭕️ wave motion begins with a disturbance in the medium. ⭕️ waves transport energy from a source outward, away from the source.

True or false when elements combine to form a mixture, the resulting chemical properties may be very different from those of the elements that make it.