If the wind applies a force of 13.2 lb to the sign at the geometric center of the sign surface, will the sign tip over? if so, how much evenly distributed weight (sand bags) should be added to the base of the sign to keep it from tipping when the wind blows?

Awave is produced in a rope. the wave has a speed of 33 m/s and a frequency of 22 hz.

Awave is produced in a rope. the wave has a speed of 33 m/s and a frequency of 22 hz. what wavelength is produced?

An ideal otto cycle has a compression ratio of 10.5, takes in air at 90 kpa and 40°c, and is repeated 2500 times per minute. using constant specific heats at room temperature, determine the thermal efficiency of this cycle and the rate of heat input if the cycle is to produce 90 kw of power.