Calculate the pressure drop in a duct (measured by a differential oil manometer) if the differential height between the two fluid columns is 3.2 cm and the density of oil is 860 kg/m3.

What is the mathematical expression that relates the number of bounces observed by the 74163 chip circuit, to the number of bounces that your eyes are capable of observing, by examining the 74163 output using LEDs?

A 21-mm-diameter steel bar is to be used as a torsion spring. If the torsional stress in the bar is not to exceed 109 MPa when one end is twisted through an angle of 15°, what must be the length of the bar?

Am i stupid o dont really know

The common type of defects found when soldering on a printed circuit board

2. Determine the surface area of a primary settling tank sized to handle a maximum hourly flow of 0.570 m3/s at an overflow rate of 60.0 m/d. If the effective tank depth is 3.0 m, what is the effective theoretical detention time

Como se conecta un circuito eléctrico con dos o más resistencias en paralelo

A house has a black tar, flat, horizontal roof. The lower surface of the roof is well insulated, while the upper surface is exposed to ambient air at 300K through a convective coefficient of 10 W/m2-K.

To enable cooking a wider range of foods in microwave ovens, thin, metallic packaging materials have been developed that will readily absorb microwave energy.

How do you distinguish between internal and external irreversibilities?

In 2008 502 motorcyclists fire in Florida - an increase from The number killed in 2004