a tennis ball is hit with a racket. its speed when leaving the racket is 13.5 m/s, if the ball is in the
air for 3.2 seconds, how far did it travel right before hitting the ground (ignore air resistance)?

Ibelieve the answer is either b or c, but i'm leaning more towards c.hope my answer has you : )

Answerthe energy required is 1.60 × 10⁻¹⁸ j, to three significant figures.explanationwe define electric potential as the ratio electric potential energy to the charge,    then the following gives us the potential difference,      the formula  may be on your formula sheet.the change in electric potential energy would be the energy that would needed to move it from point a to point b. solving for that, we get    using q = 8.00  × 10⁻¹⁹ c and  δv = 2.00 v, we get    the energy required is 1.60 × 10⁻¹⁸ j, to three significant figures.

Cardiac muscle causes movement in the bone.

A). redi wish i´ve