3 years ago

What did the results of photoelectric-effect experiment establish?

Physics

2 answers:

Bond [772]3 years ago

7 0

Answer:

Thanks For Points Mark Me Brainliest Please

Explanation:

Electrons are emitted as soon as low-intensity, high-frequency light hits a metal surface.

A. Is It

TEA [102]3 years ago

6 0

Answer: I think the answer would be A. Electrons are emitted as soon as low intensity, high frequency light hits a metal surface. Byee.

-MrBeast

Explanation:

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3 years ago

the specific heat of water is 4.2 j/c. if it takes 31,500 joules to heat to warm 750 g of water, what was the temperature change

defon

The amount of heat needed to increase the temperature of a substance by $\Delta T$ is given by
$Q=mC_s \Delta T$
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$C_s$ the specific heat capacity
$\Delta T$ the increase in temperature

In our problem, the mass of the water is m=750 g, the specific heat is $C_s = 4.2 J/g ^{\circ}C$ and the amount of heat supplied is $Q=31500 J$ , so if we re-arrange the previous formula we find the increase in temperature of the water:
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2 years ago

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