A Train Slowly Climbs a 400-M Mountain Track Which Is

question 78

Multiple Choice

A train slowly climbs a 400-m mountain track which is at an angle of 8.0° with respect to the horizontal.How much altitude does it gain?

• A)55.7 m
• B)200 m
• C)60.7 m
• D)396 m
• E)​400 m

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Definitions:

Left Ventricle

The chamber of the heart that receives oxygenated blood from the left atrium and pumps it out to the body through the aorta.

Aorta

The largest artery in the body, originating from the left ventricle of the heart and extending down to the abdomen, supplying oxygenated blood to the circulatory system.

Pulmonary Trunk

The major blood vessel transporting deoxygenated blood from the right ventricle of the heart to the lungs.

Pacemaker Potential

Pacemaker potential refers to the spontaneous gradual depolarization of the membrane potential in pacemaker cells, leading to the initiation of action potentials in certain heart cells.