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Slav-nsk [51]
3 years ago
5

Why are force fields used to describe magnetic force? A. Magnetic force acts between two objects that are not touching. B. Magne

tic force is a form of gravity. C. Magnetic force acts between any two objects with mass. D. Magnetic force can only attract objects.tic force?
Physics
1 answer:
bonufazy [111]3 years ago
5 0

Answer:

The Answer is D. Magnetic force can only attract objects.

Explanation:

Magnetic forces can cause attraction or repulsion depending on the effect caused by the movement of particles.

<h2><em><u>Edit: Pleas correct me if i'm wrong!!!!</u></em></h2>
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The total energy in a substance as a result of the motion and position of all the particles is _________. a. heat b. temperature
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When a force is acting at axis of rotation,why torque is zero?
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If an element's atomic mass and atomic number are known, what else can be determined? Give an example to demonstrate your unders
Alenkinab [10]

Answer:

Explanation:

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8 0
3 years ago
Read 2 more answers
Please help i'm going to throw up from stress
Eddi Din [679]

Answer:

Explanation:

First of all, I used the specific heat of water as 4182 J/(kgC) and the specific heat of ethyl alcohol (EtOH) as 2440 J/(kgC); that means that we need the masses in kg, not g.

120.g = .1200 kg of ethyl alcohol. Now for the formula:

t_f=\frac{(m_{H2O}*spheat_{H2O}*temp_{H2O})+(m_{EtOH}*spheat_{EtOH}*temp_{EtOH})}{(m_{H2O}*spheat_{H2O})+(m_{EtOH}*spheat_{EtOH})} where spheat is specific heat.

Filling that horrifying-looking formula in with some values:

16.0=\frac{(x*4182*20.0)+(.1200*2440*10.0)}{(x*4182)+(.1200*2440)} and

16.0=\frac{83640x+2928}{4182x+292.8} and

16(4182x + 292.8) = 83640x + 2928 and

66912x + 4684.8 = 83640x + 2928 and

1756.8 = 16728x so

x = .105 kg and the amount of water added is 105 g

4 0
3 years ago
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