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Over [174]
3 years ago
12

Your heart has four valves. Normally, these valves open to let blood flow through your heart, and then shut to keep it from flow

ing backward. Sometimes the valves don't work properly, causing some or all of the following disorders. In regurgitation, blood leaks back through the valve in the wrong direction. In valve prolapse, the valves have "floppy" flaps and don't close tightly. It's one of the most common heart valve conditions. Sometimes it causes regurgitation. In stenosis, the valve doesn't open enough and blocks blood flow. Based on your knowledge of the heart, explain how regurgitation, valve prolapse, and stenosis each adversely affects blood flow and the oxygenation of body tissues.
Physics
1 answer:
stiv31 [10]3 years ago
7 0

Answer:

It influences blood flow

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3 years ago
When the mass of the bottle is 0.125 kg, the KE is______ kg m2/s2.
DiKsa [7]
Answers are:
(1) KE = 1 kg m^2/s^2
(2) KE = 2 kg m^2/s^2
(3) KE = 3 kg m^2/s^2
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Explanation:

(1) Given mass = 0.125 kg
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Since Kinetic energy = (1/2)*m*(v^2)

Plug in the values:
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KE = (1/2) * 0.125 * (16)
KE = 1 kg m^2/s^2

(2) Given mass = 0.250 kg
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Since Kinetic energy = (1/2)*m*(v^2)

Plug in the values:
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KE = (1/2) * 0.250 * (16)
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(3) Given mass = 0.375 kg
speed = 4 m/s

Since Kinetic energy = (1/2)*m*(v^2)

Plug in the values:
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KE = (1/2) * 0.375 * (16)
KE = 3 kg m^2/s^2

(4) Given mass = 0.500 kg
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A derived quantity is defined as one that has to be calculated by using two or more other measurements.

Volume is a derived quantity because it requires one to use different measurements to determine it. For instance, in the case of a cube, the length, width and height of the cube are all needed to calculate volume.

Density is also a derived quantity because it needs both volume and mass for it to be calculated.

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