Physics category

Posted by RelaxingGrips some time ago

Can an incandescent bulb rated at 12v DC be safely powered by AC at 10v?

Posted by bostjan64 some time ago

How many distinct colours do you see in the rainbow?

Posted by Linda Joy some time ago

Who wrote President Roosevelt in 1939 proposing the feasibility of an atomic bomb?

Posted by jchapman10 some time ago

what is quantum mechanics?

Posted by jchapman10 some time ago

Are you an engineer?

Posted by Cry me a River some time ago

Do you like to see God win?

Posted by Cry me a River some time ago

Do you know what the evidence of life is?

Posted by Linda Joy some time ago

Often called high energy particles, what gives life to them?

Posted by e584345 some time ago

are there any special recruit cases in order to hire outstanding high-skill engineer like kaggle recruiting competition?

Posted by 11stevo73 some time ago

Where is the electricty supplying your home generated?

Posted by 11stevo73 some time ago

How much electricity per day does your home use.

Posted by DancesWithWolves some time ago

How do you feel , people could see a increase in the electric bill., 45 % increase ?

Posted by DancesWithWolves some time ago

The Sun Is A Big Lightbulb In The Sky & What Would You Do If That Lightbulb Turned OFF & Never Turned Back ON?

Posted by Linda Joy some time ago

Do you believe in destiny? Do you think probability wave functions disprove destiny?

Posted by Linda Joy some time ago

What travels faster than the speed of light?

Posted by 11stevo73 some time ago

Do insurance company's insure buildings with 60 year old wiring?

Posted by 11stevo73 some time ago

how much of the high voltage system in the USA is pulsed DC transmission

Posted by Adonaeze some time ago

what is meant by Ring Main Unit (R.M.U .) and what is the purpose of it in an electrical Transmission system?

Posted by Cry me a River some time ago

Have you ever sleepwalked?

Posted by DarkPoetry30 some time ago

How do you solve E=mc^2?

Posted by James Hartman some time ago

What keeps unarmed nuclear bombs from getting hot, since the nuclear rods in a nuclear reactor with a purity of 5% Uranium produce 5000 degrees of heat and the core of a nuclear bomb contains 93% pure Uranium 235?

Posted by DancesWithWolves some time ago

I live in a apartment that use to be a whole house well my electricity with all the light bulbs blink at times , what could be going on ?

Posted by Linda Joy some time ago

How can such a tiny thing be such big news?! First time ever quantum entanglement in space!

Posted by Linda Joy some time ago

True or False: Massless particles don't experience time.

Posted by DancesWithWolves some time ago

Where I live in Pennsylvania US we had a power outage , How many people hate when the power goes out ?

Posted by Mike32591 some time ago

How do I know which lightbulbs too purchase for my flat ?

Posted by Zim1 some time ago

What are the three equations of static equilibrium?

Posted by Daniel Klaws some time ago

I'm going to turn water into wine through video editing and walk on water and bring fire from the sky from computer technology. who am i? its a guessing game.

Posted by JAniiilll some time ago

what is the si unit of work

Posted by Frank Bristol some time ago

If you stack one chair on top of another chair will it take double the weight ?

Posted by wiseacre some time ago

Can you accurately guage your own memory retention of anything?

Posted by Ali Fayyad some time ago

Knowing that the couple shown acts in a vertical plane. Determine the stress at point A and B

Posted by Zim1 some time ago

Explain the difference between Direct Numerical Control and Distributed Numerical Control and show it by means of simple block diagrams.

Posted by Zim1 some time ago

Define fatigue failure. What are its characteristics?

Posted by Zim1 some time ago

a) Why are washers used with fasteners? b) Which is the preferred key type used on tapered shafts and explain the reason for it?

Posted by Zim1 some time ago

Is the yield point well defined in the case of brittle materials? Explain with reasons.

Posted by Zim1 some time ago

An object of mass 10 kg encounters a frictional force when sliding to the right. Given the coefficient of friction between the object and the surface is 0.15, determine: a) The normal force b) The gravitational force c) The frictional force Assume value of gravitaton constant g = 9.81m/s2

Posted by Syeda Khizra Naqvi some time ago

2.6 Using the property values for refrigerant HFA 134a given in Table 2.5, calculate: (i) the specific enthalpy and specific volume of HFA 134a at -8

Posted by Zim1 some time ago

a) Explain the process of creep as applied to metals.

Posted by Sparky5287 some time ago

How do you make a painful shock device for butt cheeks from 9v battery and capacitor?

Posted by Yared Teklehaymanot some time ago

What effect does the load have on the output voltage of the practical voltage source

Posted by Arik Gitman some time ago

If Robin Hood applies a 15N force to pull his bow back by 0.25 m, with what speed will his 0.150 kg arrow leave the bow?

Posted by Yared Teklehaymanot some time ago

What effect does the load have on the load current of the practical current source

Posted by groverat699 some time ago

Can you use a 100 amp power pole for 30 amp rv?

Posted by Linda Joy some time ago

What do you know about light, or enlightenment?

Posted by mustafacarhan some time ago

Digital Electronics

Posted by Kokoi12 some time ago

Discuss what will happen if a beam of white light with frequency between 4x1014 Hz to 7.9x1014 Hz is incident on both surfaces.

Posted by bostjan64 some time ago

Why do some people say "power up" for turn on and "power down" for turn off?

Posted by Linda Joy some time ago

Did you know a tractor beam can be produced using matter waves now in addition to light and sound waves?

Posted by DancesWithWolves some time ago

Do you think will ever get free Solar Power to serve Electric for power for our homes etc?

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