a body moves in such a way that it has a displacement of 12 m towards east, 5 m towards the north and then 9 m vertically upwards. compute the magnitude of its resultant displacement. ANS (15.31m)

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 is advised not to hold the thermometer by the bulb while reading it

Only 3% of the water on earth is usable by humans. even though that 3% is through the water cycle, we still need to be careful not to waste water.