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3 years ago

6

Cooling down after a workout allows the oxygen to continuing moving through the body and keeps the muscles from tightening up to

fast.
True

False

2 answers:

Liono4ka [1.6K]3 years ago

7 0

Answer: true

Explanation:

Strike441 [17]3 years ago

7 0

Answer:

True

Explanation:

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Which item is not considered electromagnetic energy?

suter [353]

Sound waves are known to be the one that's not considered as a type of electromagnetic energy. As for microwaves and x-rays, they tend to share the same frequencies that can be considered as electromagnetic, and sound waves have a different frequency than them.

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3 years ago

A roller coaster car rapidly picks up speed as it rolls down a slope as it starts down the slope its speed is 4m/s but 3 seconds

Gwar [14]

Answer:

The acceleration is 6 [m/s^2]

Explanation:

We can find the acceleration of the roller coaster using the kinematic equation for uniformly accelerated motion.

$v_{f} =v_{i} + a*t\\where:\\v_{f} = final velocity = 22 [m/s]\\v_{i} = initial velocity = 4 [m/s]\\t = time = 3 [s]\\$

Now replacing the values we have:

$a=\frac{v_{f} - v_{i} }{t} \\a=\frac{22 - 4 }{3}\\a = 6 [m/s^{2} ]$

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3 years ago

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Whitepunk [10]

Answer:

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Explanation:

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3 years ago

Physical properties of matter can be observed without changing the identity of the substance . The phases of matter are physical

ZanzabumX [31]

Solids have molecules that do not vibrate.

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3 years ago

A machine does 1200 J of work in 1 min. What is the power developed

densk [106]

Answer:

20 watts

Explanation:

Big brain mode activated:

Power=1200J/60sec

Power=20 watts

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3 years ago