If a sound is played with a frequency of 480\ \text{Hz}480 Hz480, space, start text, H, z, end text, and a second sound is played with a frequency of 800\ \text{Hz}800 Hz800, space, start text, H, z, end text, what is the name of the musical interval between the two sounds

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

If a car has a speed of 20 m/s, how long will it take to go 155 m? a. 3100 s b. 135 s c. 2.1 s d. 7.8 s

Which form of pure carbon is so hard that it can be used in cutting tools?