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tensa zangetsu [6.8K]
3 years ago
8

Mr. Garcia uses magnets to hold a poster on a steel filing cabinet because a main component of steel is _____.

Physics
2 answers:
KonstantinChe [14]3 years ago
8 0
The main component of steel is iron ... the mother of all magnetic material.
kirill [66]3 years ago
4 0

Answer:

Iron

Explanation:

Steel is the purest form of iron with a little amount of carbon mixed in it. As we all know that iron is attracted towards magnet therefore we can say that steel can also be attracted towards magnet.

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pychu [463]

Answer You need to consider that the gravity on earth is 9.8 m/s/s. This means any object you let go on the earths surface will gain 9.8 m/s of speed every second. You need to apply a force on the object in the opposite direction to avoid this acceleration. If you are pushing something up at a constant speed, you are just resisting earths acceleration. The more massive and object is, the greater force is needed to accelerate it. The equation is Force = mass*acceleration. So for a 2kg object in a 9.8 m/s/s gravity you need 2kg*9.8m/s/s = 19.6 Newtons to counteract gravity. Work or energy = force * distance. So to push with 19.6 N over a distance of 2 meters = 19.6 N*2 m = 39.2 Joules of energy. There is an equation that puts together those two equations I just used and it is E = mgh

The amount of Energy to lift an object is (mass) * (acceleration due to gravity) * (height)

:Hence, the Work done to life the mass of 2 kg to a height of 10 m is 196 J. Hope it helps❤️❤️❤️

Explanation:

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3 years ago
The image shows mountains in Alaska.
zalisa [80]

Answer:

A syncline is visible.

Explanation:

A syncline is visible.

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2 years ago
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What force do scientist think is responsible for matter clumping together
Stells [14]

It MUST be either glue or gravity.

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3 years ago
Convert 2 days into second​
eduard

Answer:

<em><u>172,000 second </u></em>

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3 0
3 years ago
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A person is standing on and facing the front of a stationary skateboard while holding a construction brick. The mass of the pers
jek_recluse [69]

Answer:

0.74 m/s

Explanation:

From the question,

We apply the law of conservation of momentum,

Total momentum before collision = Total momentum after collision.

Since the skateboard, the person and the brick where stationary, therefore, the total momentum before collision is 0

0 = Total momentum after collision

(m+M)V + m'v = 0

Where m = mass of the  skateboard, M = mass of the person, m' = mass of the brick, V = recoil velocity of the person and the skateboard, v =  velocity of the brick

make V the subject of the equation above

V = -m'v/(m+M)................... Equation 1

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Substitute these values into equation 1

V = -(2.5×21)/(68+2.5)

V = 52.50/70.5

V = 0.74 m/s

4 0
3 years ago
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