A. how many boxes of screws are needed to install 66 sheets of 4-ft by 14-ft by 5/8-in gypsum board if it requires 1.2 screws nails per square foot and there are 500 screws per box? (5 pts) b. how many lug nuts are in the truck junkyard if there are 582 half-ton trucks and 1475 three- quarter-ton trucks? half-ton trucks have five lugs per wheel and three-quarter-ton trucks have six lugs per wheel. do not round number. (5 pts) c. convert 1 light-minute (the distance light travels in 1 minute) to chains (a surveying measurement). (6 pts) d. how many troy ounces are in a cube of steel whose sides are 1.5 meters long if steel has a density of 490 pounds per cubic foot? (7 pts) e. how many board feet (bdf) of lumber are in one hundred fir trees if each tree is 60-feet tall and 30 inches in diameter? assume a 30% waste factor for converting "trees" to slumber. the formula for board feet is (nominal width in inches x nominal thickness in inches x length in feet)/12.

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).

wind moving at higher speeds will transfer more energy to the water, resulting in stronger waves.

see earlier answer