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3 years ago

Beta particles will:

Physics

2 answers:

Mademuasel [1]3 years ago

8 0

Answer is C. Hope I helped!

solong [7]3 years ago

3 0

Beta particles are electrons, which carry negative charge.

Charge isn't affected by magnets, unless it's moving. If it's moving, THEN it's electric current, and current feels a force toward or away from magnets.

This question doesn't say whether the beta particles are moving, so we have to assume that they're just laying there, and they don't even know that there's a magnet nearby.

So beta particles will not be affected by either pole of a magnet. (C)

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Answer:

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An ice chest at a beach party contains 12 cans of soda at 4.05 °C. Each can of soda has a mass of 0.35 kg and a specific heat ca

BARSIC [14]

Below is the solution:

Heat soda=heat melon
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3 years ago

how much water is needed to produce 1kwh of electricity at a power plant that is 30% efficient if the temperature increase 10 C

Dimas [21]

The amount of water needed is 287 kg

Explanation:

The amount of energy that we need to produce with the power plant is

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We also know that the power plant is only 30% efficient, so the energy produced in input must be:

$E_{in}=\frac{E}{0.30}=\frac{3.6\cdot 10^6}{0.3}=1.2\cdot 10^7 J$

The amount of water that is needed to produce this energy can be found using the equation

$E_{in}=mC\Delta T$

where:

m is the amount of water

$C=4186 J/kg^{\circ}C$ is the specific heat capacity of water

$\Delta T=10^{\circ}C$ is the increase in temperature

And solving for m, we find:

$m=\frac{E_{in}}{C\Delta T}=\frac{1.2\cdot 10^7}{(4186)(10)}=287 kg$

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