3 years ago

What is the power of a refrigerator with voltage 110 V and current 0.8 A?

Physics

1 answer:

tia_tia [17]3 years ago

8 0

Answer: 88

Explanation:

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When performing the spike the ball should be hit with the ?

VMariaS [17]

Answer:

When you are performing spike it's most effective to strike the ball from the right or left side at a sharp downward angle. Whether you are spiking the ball from the right or left front position, position yourself behind the 10-foot line (attack line), which is the line that is about four steps away from the net.

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3 years ago

What is the magnitude of the electric force between a proton and an electron when they are at a distance of 4.09 angstrom from e

Zinaida [17]

Answer:

$F=1.38*10^{-9}N$

Explanation:

According to Coulomb's law, the magnitude of the electric force between two point charges is directly proportional to the product of the magnitude of both charges and inversely proportional to the square of the distance that separates them:

$F=\frac{kq_1q_2}{d^2}$

Here k is the Coulomb constant. In this case, we have $q_1=-e$ , $q_2=e$ and $d=4.09*10^-10m$ . Replacing the values:

$F=\frac{8.99*10^{9}\frac{N\cdot m^2}{C^2}(-1.6*10^{-19}C)(1.6*10^{-19}C)}{(4.09*10^{-10})^2}\\F=-1.38*10^{-9}N$

The negative sign indicates that it is an attractive force. So, the magnitude of the electric force is:

$F=1.38*10^{-9}N$

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2 years ago

Which statement best describes scientific theories?

mariarad [96]

Answer:

the answer is A

Explanation:

Scientific theories attempt to explain an entire group of related phenomena.

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3 years ago

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Dr. Metallica wants to change the property of an alloy? How could she do this? SELECT ALL THAT APPLY. (Please help!)

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Answer:

I think itd A

Explanation:

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Water is used in car radiators as coolant because of

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Water is used as a coolant in automobiles radiators because it has high specific heat capacity. So, it absorbs a large amount of heat for a degree rise in temperature.

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3 years ago