How long does light take to get to the Earth from the Sun in seconds

An object moves from position +34m to the position -15m in 15 seconds. what is the total displacement? what is the total velocity?

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

Atoms containing radioactive nuclei are called