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umka21 [38]
3 years ago
15

Does an athlete do work on a trophy as she lifts it overhead

Physics
1 answer:
bogdanovich [222]3 years ago
3 0
No she/he is doing work for her muscles
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True or false
Ahat [919]

Answer:

False

Explanation:

parts that are smaller than protons neutrons and electrons

5 0
3 years ago
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Two astronauts are working on the lunar surface to install a new telescope. The acceleration due to gravity on the moon is only
nydimaria [60]

Answer:

Its velocity and acceleration are both nonzero.

Explanation:

The path of the wrench is trajectory while the acceleration due to Moon's gravity is acting on it.

As the velocity follows the path, as soon as it reaches maximum height, the vertical component of velocity is zero but the horizontal component is still there, constant.

3 0
3 years ago
Why is rust different from the iron and oxygen that it is made of
borishaifa [10]
For the same generic reason that table salt doesn't taste or behave
like the corrosive sodium or the poisonous chlorine that it's made of.

The physical and chemical properties of compounds in general are
very different from the characteristics of any of their constituent
elements in the pure elemental state.

-- Water doesn't act anything like Hydrogen or Oxygen.

-- A candle doesn't act anything like Carbon or Hydrogen.

-- Dry ice doesn't act anything like Carbon or Oxygen.

-- DNA doesn't act anything like Hydrogen, Oxygen, Nitrogen,
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7 0
3 years ago
The radius of the aorta is about 1.4cm , and the blood passing through it has a speed of about 40cm/s .
Lapatulllka [165]

For the average speed of blood flow in the major arteries of the body  is mathematically given as

v2 = 117.29m/s

<h3>What is the average speed of blood flow in the major arteries of the body?</h3>

Generally, the equation for the average speed  is mathematically given as

A1 v1 = A2 v2

(pi r1^2) v1 = A2 v2

(3.14x(1.4)^2 )x 40 = (2.1) xV2

v2 = 117.29m/s

In conclusion, the average speed of blood flow

v2 = 117.29m/s

Read more about Speed

brainly.com/question/4931057

4 0
2 years ago
For what purpose is a screen name used?
Alchen [17]
Screen name is the name a user chooses to use when communicating with others online.
5 0
4 years ago
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