Physics, 03.11.2019 21:31, kaishat1092

If a taxi moves with an initial velocity of +12.6 meters/second and has a constant acceleration of +3.1 meters/second2, what is its final velocity after 6.0 seconds?

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'Acceleration' of 3.1 m/s² means that the taxi is speeding up, and
it's speed is 3.1 m/s faster each second than it was a second earlier.

So, after 6.0 seconds, its speed is (6 x 3.1) = 18.6 m/s faster than
it was at the beginning of the 6 seconds.

That speed was 12.6 m/s when the 6 seconds began, so it's

(12.6 + 18.6) = 31.2 m/s

at the end of the 6 seconds.

Notice that this whole discussion talks about the taxi's speed, not velocity ...
just as the question should. There isn't a single word anywhere in the
question that refers to the taxi's direction, so we don't have a shred of
information that would make it possible to say anything about its velocity.

answered: Guest

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).

answered: Guest

explanation:

could i give you a exaplo that could you?

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If a taxi moves with an initial velocity of +12.6 meters/second and has a constant acceleration of +...