An electric vehicle starts from rest and accelerates at a rate of 1. 9 m/s2 in a straight line until it reaches a speed of 30 m/s. The vehicle then slows at a constant rate of 1. 4 m/s2 until it stops. (a) How much time elapses from start to stop? (b) How far does the vehicle move from start to stop.

Which of the choices below is one of the primary gases found in the atmosphere? a. helium b. carbon dioxide c. nitrogen d. argon

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

Ihave this 50 question test the layer of earth's atmosphere where atoms and molecules escape into space is referred to as the a) exosphere b) ionosphere. c) mesosphere d) thermosphere