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Leokris [45]
3 years ago
5

Integrated Science- 8th grade science

Physics
2 answers:
mart [117]3 years ago
7 0

Answer:

"Why"

Explanation: A scientific law is a description of how the natural world behaves under certain circumstances.

Scilla [17]3 years ago
4 0

Answer:

technically its all of but the most  common is "Why"

Explanation:

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angie is moving a couch with a mass of 48 kg. she moves it in 120 seconds using 240 j of work. what is her power output
natta225 [31]
Power =(work done) / (time to do the work) = 240 J / 120 sec = 2 watts.
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3 years ago
The universe is made up of __________.
vekshin1
Thousands of galaxies
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The velocity of a car changes from 50 m/s north to 40 m/s north in 2 seconds. What is the car’s acceleration?
Zigmanuir [339]
Acceleration is defined as the change in velocity divided by the change in time. Since the velocity changed from 50 m/s to 40 m/s (-10 m/s change) in 2 seconds, then the acceleration is (-10/2) = -5 m/s^2 northward. Hope this helps!
4 0
4 years ago
A closed curve encircles several conductors. The line integral around this curve is (image attached below)
Masteriza [31]

The net current in the conductors and the value of the line integral

  • I=\frac{3.2\cdot 10^{-4}}{4\pi \cdot 10^{-7}}=254.77\, A
  • The resultant remains same 3.2 *10^4 Tm

This is further explained below.

<h3>What is the net current in the conductors?</h3>

Generally,

To put it another way, the total current In flowing across a surface S (contained by C) is proportional to the line integral of the magnetic B-field (in tesla, T).

\oint_C \mathbf{B} \cdot \mathrm{d}\boldsymbol{\ell} = \mu_0 \iint_S \mathbf{J} \cdot \mathrm{d}\mathbf{S} = \mu_0I_\mathrm{enc}

I=\frac{3.2\cdot 10^{-4}}{4\pi \cdot 10^{-7}}=254.77\, A

B)

In conclusion, It is possible for the line integral to go around the loop in either direction (clockwise or counterclockwise), the vector area dS to point in either of the two normal directions and Ienc, which is the net current passing through the surface S, to be positive in either direction—but both directions can be chosen as positive in this example. The right-hand rule solves these ambiguities.

The resultant remains the same at 3.2 *10^4 Tm

Read more about conductors

brainly.com/question/8426444

#SPJ1

5 0
2 years ago
Which one is NOT an application of heating effect of electric current ? * Required to answer. Single choice.(1 Point) Electric b
solmaris [256]

Answer:

Electromagnet.

Explanation:

Electric bulb and electric water heather are application of heating effect of electric current. The electromagnet is not the result of heating effect of electric current. The bulb gives light due to the heating effect similarly the water is heated or warmed by the heating effect of electric current.

5 0
3 years ago
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