Amass m suspended by a spring with force constant k has aperiod t when set into oscillations on earth. its period on mars, whose mass is about 1/9 and radius 1/2 that of earth, is mostnearly

a) 1/3 t
b) 2/3t
c)t
d) 3/2t
e) 3 t

Molten iron fills a mould, which has a volume of 200 cm cubed. calculate the volume when the iron cools and solidifies.

Explain what will happen if decomposers were apsent from a forest ecoysystem.

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