if an action equal to reaction , explain how a horse can pull a cart ?
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If action is always equal to the reaction, explain how a horse can pull a cart. A horse pushes the ground in the backward direction. According to Newton's third law of motion, a reaction force is exerted by the Earth on the horse in the forward direction. As a result, the cart moves forward.
Answer:
The circulatory system is made up ofblood vessels that carry blood away from and towards the heart. Arteries carry blood away from the heart and veins carry blood back to the heart. Thecirculatory system carries oxygen, nutrients, and hormones to cells, and removes waste products, like carbon dioxide.A body system is a collection of parts able to work together to serve a common purpose – growth, reproduction and survival. ... The human body is made up of a number of inter-related systems that work together to maintain a stable internal environment. Cardiovascularsystem. The heart and blood vessels make up this systemDuring gas exchange oxygen moves from the lungs to the bloodstream. At the same time carbon dioxide passes from the blood to the lungs. This happens in the lungs between the alveoli and a network of tiny blood vessels called capillaries, which are located in the walls of the alveoli.
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