Engineering

Boleeian algebra f(X,Y,Z)=(X’Y+XZ)(X+Y’)

f(X,Y,Z)=(X’Y+XZ)(X+Y’) first evaluate (XY)(X +Y) =0since XXY + XYY are each 0, the anded termsXX and YY are always 0 next evaluate XZ(X +Y) = XXZ +XYZ = XZ(1 +Y) = XZsince XX is just X, and 1 ored wi

What is the height of the platform

A ball rolls horizontally with a speed of 6.4m/soff the edge of a tall platform. If the ball lands 5.9mfrom the point on the ground directly below the edge of the platform, what is the height of the p

Why is time of concentration used to calculate storm water flows? why is it important

the storm water flows can be calculated by multiplying the impremeable catchment area by the rainfall intensity. i understand all of this, but why use the time of concentration to determine a rainfall

Whats the best way to make time fly

Ok so i got a clock, watch, and a sundial. My goal is simple, how can i make them fly? Please dont say put them in a airplane. I really want to see time fly but not by plane. I plan on building some s

Which one is brighter a 10mw violet laser or a 650nm 200mw red

When it comes to beams which one is brighter-Lasers are very dangerous. Specially pointing it at the sky, as it if hits an aircraft, you are in big trouble. The department of homeland security has cla

Can anyone help me build a logic circut

I need to build a logic circuit that indicates when a majority “yes” vote occurs for three voters. I can only use and and or gates with only three input wires. The gates can be in parallel. One input

How do you burn stainless steel

I want to find out how to burn stainless steel... I cant find it anywhere! You guys are awesome, as always!-Use high power CO2 laser beam.-Burn? steel doesnt burn under normal conditions. But an Oxyac

Current News for Engineering/Manufacturing

I need some type of Engineering/Manufacturing news for my Tech class in High School. It need to be current. I cant find any creative articles. Help please.-There are many websites for engineering pr

Voltage divider rule

How would you solve for E(Vin)..in a circuit series with 3resistors values ofthem.1.2ohm..2ohm..6.8ohm..and the voltage across the 2ohm resistor is 20V...i cant use current!!! to find the voltage acro

Am i solving the amount of Coulombs wrong

So I have 40 mA existing for .8min. How many coulombs have passed through? Initially .8min must be con. to seconds so: 48s. and then Q= I(t) = (40x10^-3)(48)=1920x10^-3=1.2 C My txtbook says 192 C but

Calculate the inductive reactance of L answer must be in henrys

Given the values, Ir=4A, IL=3A, C=50ohms, Vt=300V. Fr=unknown and Ic=Unknown.-You havent said if the circuit is series or parallel.

Where to get experience for electrical engineering at an early age

Hey guys, I am currently in college and going for a 4 year bachelors degree and up for Electrical Engineering and was wondering if anyone out there has an idea where to get experience. Not the experie

Relationship between the resistances at different temperatures

What would the differences of resistances be of shunt fields, series fields and armature circuits if the temperature was different? I remember in class they had us turn it on for about 5 minutes so it

Why is endurnace limit often used in relation to non-ferrous metals

Thanks.-Because material such as aluminum have lower fatigue and ultimate strength compared to steel. Therefore, it is better to design to the endurance limit, where infinite load cycles will not caus

Differences in resistances in shunt fields, series fields and armature circuits

What are the differences between them? Like why is the shunt feld different from the resistances of the armature and series field?-These arerelated to DC machines. They primarily differ in magnitude