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3 years ago

When a light switch is turned on, the light comes on immediately because.

Physics

2 answers:

Stolb23 [73]3 years ago

6 0

Hello I hope you are having a great day :)

Your question: When a light switch is turned on, the light comes on immediately because....

The answer is: the electrons in the wire are instantly "pushed" by a voltage difference making the the light switch on.

Hopefully that helps you :)

iren2701 [21]3 years ago

4 0

The Energy and Electric is in the air already so it will always light up just like a candle when it burns out you can light the smoke and it will start back

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Hydraulic press is a force multiplier . show mathematically

Vadim26 [7]

Yes it’s is a force multiplier

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4 years ago

You hang a heavy ball with a mass of 10 kg from a gold wire 2.6 m long that is 1.6 mm in diameter. You measure the stretch of th

PolarNik [594]

Answer: The Young's modulus for the wire is $6.378\times 10^{10}N/m^2$

Explanation:

Young's Modulus is defined as the ratio of stress acting on a substance to the amount of strain produced.

The equation representing Young's Modulus is:

$Y=\frac{F/A}{\Delta l/l}=\frac{Fl}{A\Delta l}$

where,

Y = Young's Modulus

F = force exerted by the weight = $m\times g$

m = mass of the ball = 10 kg

g = acceleration due to gravity = $9.81m/s^2$

l = length of wire = 2.6 m

A = area of cross section = $\pi r^2$

r = radius of the wire = $\frac{d}{2}=\frac{1.6mm}{2}=0.8mm=8\times 10^{-4}m$ (Conversion factor: 1 m = 1000 mm)

$\Delta l$ = change in length = 1.99 mm = $1.99\times 10^{-3}m$

Putting values in above equation, we get:

$Y=\frac{10\times 9.81\times 2.6}{(3.14\times (8\times 10^{-4})^2)\times 1.99\times 10^{-3}}\\\\Y=6.378\times 10^{10}N/m^2$

Hence, the Young's modulus for the wire is $6.378\times 10^{10}N/m^2$

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4 years ago

When acceptance and love are given to another only when certain expectations or standards are met, __________ is being demonstra

Anna71 [15]

Answer:

conditional positive regard

Explanation:

Condition Positive Regard can be described as a situation in which positivity, love or affection are only given when certain criteria or demands are met. Whereas on the contrary, an unconditional positive regard occurs when a person is loved without any demands or criteria.

Condition positive regards means to love or show affection for someone or something depending on its values in our eyes.

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3 years ago

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What is the answer to 17 ‐ 12× ‐ 18 ‐ 5×

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The answer is -17x-1. You have to combine like terms.

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4 years ago