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lisabon 2012 [21]
3 years ago
8

A collection of 1.25×1019 electrons has the charge -3c, -1c, -2c

Physics
1 answer:
djverab [1.8K]3 years ago
3 0

Answer:

-2 C

Explanation:

charge of an electron = -1.6x10^{-19}C

therefore charge of 1.25 x 10^{19} electrons = (1.6x10^{-19}) x (-1.25x10^{19}) = -2 C

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Answer:

Obesity changes in the structure and function of the heart. It increases your risk of heart disease. The more you weigh, the more blood you have flowing through your body. The heart has to work harder to pump the extra blood.

Explanation:

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In some early mornings , dew drops can be found on grass or a car parked outside, but not on other materials such as the sidewalk because  the night -time temperature on grass and the car went below the dew point, but  the temperature of the concrete did not drop enough to reach the dew point  level

Dew can be formed on any object when the temperature of the object drop. When this happen, the object will be cool which will eventually cool the surrounding air around the object.

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In some early mornings , dew drops can be found on grass or a car parked outside, but not on other materials such as the sidewalk because  the night -time temperature on grass and the car went below the dew point, but  the temperature of the concrete did not drop enough to reach the dew point  level

Therefore the correct option is therefore A

Learn more here : brainly.com/question/13834972

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3 years ago
the other end of the pipe. With the aide of the pipe, does the applied force produce a smaller torque, a greater torque, or the
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Answer:

With the addition of the pipe we have a greater torque.

Explanation:

We need to complete the description of the problem, searchin in internet we have:

"Sometimes, even with a wrench, one cannot loosen a nut that is frozen tightly to a bolt. It is often possible to loosen the nut by slipping one end of a long pipe over the wrench handle and pushing at the other end of the pipe. With the aid of the pipe, does the applied force produce a smaller torque, a greater torque, or the same torque on the nut?"

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We can see in the above equation, that increasing the distance increases torque proportionally.

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