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Doss [256]
3 years ago
8

Why are concepts in physics described with formulas

Physics
1 answer:
guapka [62]3 years ago
8 0
"Gravity gets stronger when there's more mass and weaker when you get farther away" tells you very little.
"A whole lot of energy can come from just a little tiny bit of mass" tells you very little.
And "The speed of light is very very very very very fast" tells you almost nothing.
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Consider the circuit shown in the figure below. (Let R1 = 3.00 Ω, R2 = 8.00 Ω, and = 10.0 V.). . (a) Find the voltage across R1.
Goryan [66]
You take the inverse of the total resistances of each branch and add them up. So if you have 5ohm, 7 ohm, and 10ohm, you would add 1/5 + 1/7 + 1/10 = 31/70 Then flip it back by either using the <span>x<span>−1</span></span><span> (inverse) key on your calculator or simply dividing 70 by 31 to get a total of 2.26ohms</span>
8 0
3 years ago
What is the emf of a battery that increases the electric potential energy of 0.060 CC of charge by 0.70 JJ as it moves it from t
Evgen [1.6K]

Answer:

emf = 11.667 V

Explanation:

Given: charge q = 0.060 C, electric potential energy E =0.70 J,

Solution :

by definition 1 volt = 1 joule per coulomb

so Voltage = emf = E/C

emf =  0.70 J / 0.060 C

emf = 11.667 V

5 0
3 years ago
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How did people years ago find out which side of a magnet was north and which was south?
wlad13 [49]
In 1600 when William Gilbert published De Magnete
5 0
3 years ago
What formula is needed to calculate the acceleration of object in motion?
Butoxors [25]

Answer:

Acceleration = Force/Mass

Explanation:

6 0
4 years ago
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Which will have the lowest density <br>A) Ice<br>B) Steam<br>C) water​
Nesterboy [21]

Answer:

steam will have the lowest density.

Hope it will help :)

4 0
3 years ago
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