At distances greater than 2 femtometers, the nuclear strong force is stronger than (select all that apply): gravity electromagnetic forces nuclear weak force none of the above

None of the above

Explanation:

As we know that radius of the nuclei is given as

so nuclear force between the nucleons exist only between the nucleons which present inside the nucleus.

Since nuclear force depends on the distance between the nucleons so here we can say that as the distance is more than this order of distance i.e. 1.75 fm then in that case the nuclear force is negligibly small and its magnitude is smaller than electromagnetic force and gravitational force both.

So we can say that for all distance range which is more than 2 fm the nuclear force is small or negligible.

So correct answer will be

None of the above

most voltage drop calculators want the distance between the source and destination. then internally, they double it so both the source and return wires are calculated. but you need to know which distance the calculator uses so you're not half of what you should be or double what you should be.

most circuit breakers will not take a #6 directly, so the electrician will have to splice on a smaller pigtail. you also have to upsize the grounding wire when you upsized the ungrounded (hot) wire (see note in 250.122). this will preclude using most cable assemblies, as a cable with #6 copper will most likely only have a #10 grounding conductor. you need a #6 grounding conductor if the circuit is 20a. a #8 cable is no better, as it will have a #10 grounding conductor too. but most 20a breakers will take a #8 directly.

in your related post, you didn't say what type of load this is. if it is a light or heater, voltage drop won't be a big issue. if this is a motor, the current needs are huge at startup and the voltage drop can pose a problem. if this is a motor, knowing if the motor is under much load during startup will answer the voltage drop effect (a saw is easier to start than a compressor).

0.19 m/s and 0.45 m/s