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Lady_Fox [76]
3 years ago
6

Match the phrase with the term. How hard the blood pushes on the inside of the blood vessels is called . The total amount of blo

od the heart pumps in one minute is called . When blood vessels open wider during exercise, they are said to . How many times your heart beats in one minute is called . The force that can put unhealthy tension on the heart as it is pumping is called . The amount of blood the heart pumps out in one beat is called .
Physics
1 answer:
taurus [48]3 years ago
4 0

Answer:

How hard the blood pushes on the inside of the blood vessels is called? BLOOD PRESSURE

The total amount of blood the heart pumps in one minute is called ?

CARDIAC OUTPUT

When blood vessels open wider during exercise, they are said to ?

DILATE

How many times your heart beats in one minute is called ?

HEART RATE

The force that can put unhealthy tension on the heart as it is pumping is called ?

BLOOD PRESSURE

The amount of blood the heart pumps out in one beat is called?

STROKE VOLUME

Explanation:

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Answer:

The speed of the block is 8.2 m/s

Explanation:

Given;

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height above the top of the spring, h = 5.5 m

First, we determine the spring constant based on the principle of conservation of potential energy

¹/₂Kx² = mg(h +x)

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0.03125K = 118.335

K = 118.335 / 0.03125

K = 3786.72 N/m

Total energy stored in the block at rest is only potential energy given as:

E = U = mgh

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Work done in compressing the spring to 15.0 cm:

W = ¹/₂Kx² = ¹/₂ (3786.72)(0.15)² = 42.6 J

This is equal to elastic potential energy stored in the spring,

Then, kinetic energy of the spring is given as:

K.E = E - W

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K.E = 70.59 J

To determine the speed of the block due to this energy:

KE =  ¹/₂mv²

70.59 =  ¹/₂ x 2.1 x v²

70.59 = 1.05v²

v² = 70.59 / 1.05

v² = 67.229

v = √67.229

v = 8.2 m/s

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