Also five differences betweern them

I have seen this many times. Before start of construction of a road bridge, there is always a huge pile of concrete cubes placed on the side of the road. It is removed within a day or two. Is it some sort of stress test?

I need a magnet that can held GI pipes which has weight 10 15kg and 20 to 30 kg. In one of my project currently working, needs to held a pipe mechanically. So, I was thinking if I can use magnets that can do my job.

Best answer: Light Amplification by Stimulated Emission of Radiation.

I want to be an engineer when I grow up. I enjoy physics and math, but computer coding and auto mechanics are things I also enjoy. For one of my electives I chose to do electrical installation, however I was unable to pick auto mechanics due to the fact that I want continue on learning a second language. I’ve done my own research on the different types of engineering and I would like to hear from people (experience,advice,etc)

Best answer: Look closely at the end that plugs into the wall - it should have some info printed on it. First, make sure it has a DC output and that output is the correct voltage and sufficient current for your use. Then if you look closely, there should be a symbol that looks a bit like the letter "C" with a dot in the middle. It will indicate the polarity of the output. Commonly, the center pin (the 'dot') is positive, and the shell ('C') is negative, but that is not always the case.

Best answer: The energy "stored" in the capacitor fills and empties 100 to 120 times a second. If you disconnect the capacitor at just the right instant, then it may be charged to the peak line voltage, 1.4 times the RMS voltage, which corresponds to an energy of CV^2.
"AC" is just a sine wave voltage. "DC" is a voltage with a constant offset in one polarity or the other. Capacitors in AC circuits are used to create a phase shift and never accumulate a charge since the average value of a sine wave is zero.

will the aluminum pole become much more rigid? Both poles will be 6 feet long. I have thought of an interesting method for accomplishing this task. Or will the aluminum pole just rupture?

Whenever I see circuits while solving thevenin theorem or superpostion theorem circuits, i get confused in identifying series and parallel circ uits, I am pretty much confused with series and parallel circuits concepts,can you please explain in an inituitive way to an engineering student?

Best answer: d is shorthand for Delta which represents change.
Example: If x is initially 5 meters and becomes 10 meters. then dx
is the difference: 10-5 = 5 = dx
dt is the change in time.
If you start measuring when the clock reads five seconds and
stop at 10 seconds then the change in time is 5 seconds = dt
dx/dt = 5 meters/5 seconds = 1 meter/second

Meters per second represent velocity just like Miles pet hour.
dx/dt allows you to use any units of distance and time with the
same meaning as velocity.

For calculation purposes this becomes convenient.
If V = dx/dt, then dx/dt = acceleration × time
and integrating x = 1/2 at²

You'll get it with a little help from YouTube's treatment of
SUVAT.

Carpenters basically measure, design and build, why aren’t they not considered engineers.

Best answer: Oil molecules contain multiple double bonds which react at elevated temperatures (Diels-Alder and free radical reactions). These create polymers of the already high molecular weight triglycerides.