A projectile is fired from a very powerful cannon vertically upward from Earth's surface at an initial speed of 5.5 km/s . Assume that air resistance is negligible. The mass of the earth is 5.97E24 kg and the radius of the earth is 6370 km.(a) What is its maximum altitude above the ground? Assume that air resistance is negligible.

Maximum altitude above the ground surface is 2053 km.

Explanation:

See written workings in attached picture.

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).

explanation:

considering the bohr theory, the type of connection that requires the transfer the answer conuldn't be right