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in hooks law, f spring = k (triangle) x, what does the triangle and the x stand for

a. the distance the spring stretches

b. the elastic constant, a number at tells the relative strength of the spring

c. the constant of gravity

d. the amount of force acting on the spring

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

It takes a lot of energy to get the temperature of water to increase and eventually boil because water has a high heat.

The drag force, fd, imposed by the surrounding air on a vehicle moving with velocity v is given by fd = cdaρv 2/2 where cd is a constant called the drag coefficient, a is the projected frontal area of the vehicle, and ρ is the air density. an automobile is moving at v = 80 kilometers per hour with cd = 0.28, a = 2.3 m2, and ρ = 1.2 kg/m3.