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maksim [4K]
3 years ago
8

a series circuit contains two devices one with a resistance of 10 ohms and one with a resistance of 4 ohms if the generator supp

lies a voteage of 42 v what is the magnitude of the current?
Physics
2 answers:
sladkih [1.3K]3 years ago
4 0

Current(I) = Voltage/Resistance

                = 42/(10+ 4)

                = 42/14  

Current = 3 A      

valkas [14]3 years ago
4 0

Answer:

i = 3 A

Explanation:

When two or more resistances are connected in series then the total effective resistance is given as

R_{eq} = R_1 + R_2

now we have

R_{eq} = 10\: ohm + 4\: ohm

R_{eq} = 14\: ohm

now from ohm's law we know that

V = i R

here we know that

V = 42 volts

R = 14 ohm

now from above equation

42 = i \times 14

i = 3 A

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D

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What happened to the balloon when it was placed on the bottle with the baking soda and vinegar and why.
user100 [1]

Answer:

The ballon would be inflated. The reason is that the sodium bicarbonate in baking soda reacts with acetic acid in vinegar to produce gas.

Explanation:

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Acids such as acetic acid react with carbonate salts. One of the products of such reactions is carbon dioxide {\rm CO_{2}}, a gas.

In this question, when the acetic acid in vinegar reacts with sodium bicarbonate in the baking soda, the following reaction would occur:

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5 0
2 years ago
A block rests on a ?at plate that executes vertical simple harmonic motion with a period of 0.58s.
SVETLANKA909090 [29]

Answer:

maximum amplitude  = 0.08 m

Explanation:

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Time period T= 0.58 s

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We know that time period of simple harmonic motion given as

T = 2π/ω

0.58 = 2π/ω

ω = 10.83rad/s

ω=angular frequency

Lets take amplitude = A

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8 0
3 years ago
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Explanation:

Weight is considered as a force and this is equal to the product of mass by gravitational acceleration.

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W = weight = 0.8 [N]

m = mass [kg]

g = gravity acceleration 2[N/kg]

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m=W/g\\m = .8/2\\m = 0.4 [kg]

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