What factors should be considered in quadcopter motor selection?

A) Voltage that matches battery and motor amp-hours

B) Amperage and weight

C) Maximum revolutions per minute and torque rating

D) Power-to-weight ratio and pitch

How does a car batteray NOT die?

A tensile test is performed on a metal specimen, and it is found that a true plastic strain of 0.22 is produced when a true stress of 572 MPa (82960 psi) is applied; for the same metal, the value of K in the equation is 860 MPa (124700 psi).

Find the difference between the first and third angle projection type.

Consider a person standing in a breezy room at 20°C. Determine the total rate of heat transfer from the person if the exposed surface area and the average outer temperature of the person are 1.6 m2and 29°C, respectively.

What is hot tear in casting? How can we avoid it?

The loss of power a signal suffers as it travels from the transmitting computer to a receivingcomputer is: a. white noiseb. spikingc. attenuation d. intermodulation noisee. echo

Compared to 15 mph on a dry road, about how much longer will it take for you to stop at 30 mph on a snow-covered road? 2 to 3 times 4 to 6 times 8 to 10 times

Explain under what circumstances earthworm channels might increase downward saturated water flow, but not have much effect on the leaching of soluble chemicals applied to the soil.

The hot combustion gases of a furnace are separated from the ambient air and its surroundings, which are at 25 oC, by a brick wall 0.15 m thick. The brick has a thermalconductivity of 1.2 W/m. K and a surface emissivity of 0.8.

Which of the following statements do not correctly describe pull manufacturing? (1). Material flow is determined by the need of the downstream workstation (2). Control is transferred from the beginning of the line to the end (3).