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2 years ago

If you touch a hot light bulb and get burned, that is an example of _____.

Physics

2 answers:

Anton [14]2 years ago

7 0

The answer is C conduction

Shalnov [3]2 years ago

5 0

Answer: Conduction

Explanation:

Conduction is a form of heat transfer that requires direct contact with the source of heat. Another example of conduction through heat transfer is touching of hot iron

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Consider a steel guitar string of initial length L=1.00 meter and cross-sectional area A=0.500 square millimeters. The Young's m

Reil [10]

Answer:

$\Delta l=0.015m$

Explanation:

We have given initial length of the steel guitar l = 1 m

Cross sectional area $A=0.5mm^2=0.5\times 10^{-6}m^2$

Young's modulus $\gamma=2\times 10^{11}Pa$

Force F = 1500 N

So stress $=\frac{force}{area}=\frac{1500}{0.5\times 10^{-6}}=3000\times 10^{-6}=3\times 10^{9}Pa$

We know that young's modulus $=\frac{stress}{strain}$

So $2\times 10^{11}=\frac{3\times 10^{9}}{strain}$

$strain=1.5\times 10^{-2}=0.015m$

Now strain $=\frac{\Delta l}{l}$

$0.015=\frac{\Delta l}{1}$

$\Delta l=0.015m$

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3 years ago

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ser-zykov [4K]

Answer:

6.23 newtons per second?

Explanation:

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2 years ago

Substances have internal energy due to the constant, random motion of their particles. This is a kind of kinetic energy that dif

pickupchik [31]

Answer:

Explanation:

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2 years ago

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What is the meaning of critical angle in physics

bonufazy [111]

Answer:

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2 years ago

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aleksandrvk [35]

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