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sergeinik [125]
3 years ago
6

Why are most objects not magnetic?

Physics
2 answers:
Vedmedyk [2.9K]3 years ago
6 0
Because there’s like no metal stuff idk
maksim [4K]3 years ago
6 0

Answer:if the magnetic fields of all those atoms are randomly oriented then they would cancel each other out and the material would have no magnetic field

Explanation:

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A weightlifter raises a 50kg weight to a height of 2m in 2 minutes. What was the power spent by the weightlifter?
belka [17]

Answer:

117.72kW

Explanation:

Given data

Mass m= 50kg

height x = 2m

time taken = 2 minutes= 129 seconds

let us find the work done

WD= force * distance

WD= mgx

WD= 50*9.81*2

WD= 981 Joules

Let us find the power

Power= work * time

Power= 981*120

Power= 117720

Power= 117.72 kW

Hence the power spent is 117.72kW

8 0
3 years ago
What is one Pascal pressure? What is its unit?​
BabaBlast [244]

Explanation:

the force acting perpendicularly on unit area of surface

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3 0
2 years ago
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According to Binet, mental age relates to chronological age because ___________.
mamaluj [8]
<em>Its B fam, hope you get that good grade.</em>
8 0
3 years ago
The following reaction is an example of a base reacting with water: NH3 + H2O → H3O + NH4+
photoshop1234 [79]
H3 in reaction: NH3 + H2O→NH4 + OH- 
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5 0
3 years ago
(11%) Problem 5: A uniform stationary ladder of length L = 2.7 m and mass M = 11 kg leans against a smooth vertical wall, while
jeka94

Answer:

970.2 N

Explanation:

We are given that

Length of ladder=2.7 m

Mass,M=11 kg

Coefficient of friction=\mu=0.45

\theta=51^{\circ}

Mass of painter=8M

Distance from base=d

We have to find the magnitude of the normal force exerted by the floor on the ladder.

Normal force exerted by floor on the ladder=mg+8mg=9mg

Where g=9.8m/s^2

Normal force exerted by floor on the ladder=9\times 11\times 9.8=970.2N

7 0
3 years ago
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