GENTE ME AJUDEM NESTA QUESTÃO POR FAVOR! – As ondas luminosas propagam-se com a mesma velocidade em todos os meios óticos?

Por favor!

A2-kg bowling ball is 2.5 meters off the ground on a post when it falls. just before it reaches the ground, it is traveling 7 m/s. assuming that there is no air resistance, which statement is true?

Explain earth's motion, using the terms "precession" and "rotation" in your answer.

Blood pressure the total amount of blood the heart pumps in one minute 2. cardiac output the number of times your heart beats in a minute 3. dilate the amount of blood that the heart can pump in a single beat 4. heart rate the force exerted on the walls of the blood vessels by the blood that moves through them 5. stroke volume to widen or get larger in size