Engineering

A crane's safe working load is 9kn at 20degrees above horizontal, this limit is determined by the torque

Can withstand What is the angle of elevation that can safely lift 12kn? Ive tried the law of levers etc but cant work it out any help?-9 kN * L * Cos(20) = 12 kN * L * CosΘ CosΘ = 9/12 * Cos(20) = 0.

What is the filler material made of for SMAW/stick welding

Just curious, but whats the material used for welds made of for say carbon steel?Is it mostly the same composition (mostly ferrous) or is it a specific make up of different materials?I had always assu

How do i gain the power of indivisibility

When you can turn invisible and just do whatever you want without anyone seeing you. i need that power. how do i attain it?-Jump in a late of toxic waste! that always works in the movies-indivisibilit

Is the RMS values of the voltage or current changed by changing the wave form? Why

....-yes. For a sine wave of 100 volts peak, 200 volts P-P, the RMS is 70.7 volts For a square wave of the same peak voltage, the RMS is 100 volts. RMS is a measure of the area under the curve, and

Routh stability criterion

S^5+ 4S^4+2S^3 +S^2+2S+ k=0range ofK to be stable-The matrices for your equation will be: 122 41k 7/4(8-k)/40 (4k-25)/7 According to Routh–Hurwitz stability criterion, the signs of the first col

Is leyden jar and electroscope the same

Nope.A Leyden jar is a capacitor whereas an electroscope is an indicator of static charge.

What is the meaning 0 - 20 V (into 50 ohm) in specification of voltage generator

I want to make an electrical circuit with pulse voltage generator. In pulse voltage generator specification there is a voltage parameters, such as: 0-20 V (into 50 ohm). what is the meaning of into 50

What lasts longer hydraulic or pneumatic pumps/systems

Hi I am doing a report on which systems last longer hydraulic or pneumatic, and the advantages/ disadvantages with them both. Any help would be appreciated. Cheers-Depends on what they are used for

Eletrical tech. What is the current flowing in a 460va pump if they are connected to 115v ac rms

Around 5.65685425A

What's wrong about of blower of mill

I have a mill. It is always vibraitng. Who can tell me why and how to solve? Thanks-Causes:Too much powder on vanes, vanes worn out, and fastening-bolts loosened. How to Fix:Get rid of powder on the v

Help explaining hydraulic brakes??!!

can someone please explain to me how hydraulic brakes work in an easy way as everyone is confusing me. i need a simple explanation as i am only 14 and need help with homework thanks a lot everyone :)

When making a Solar powered car what is more important Ampere or Voltage (Parallel or Series)

For my tech class we are making miniature solar powered cars with 2 miniature solar panels. I have researched quite a bit about Ohms law and Amps and Voltage but I still do not know what to focus on i

A pendulum set up in the stairwell of a tall building consists of a steel ball suspended at the end of a wire

A pendulum set up in the stairwell of a tall building consists of a steel ball of mass 493 kg suspended at the end of a 47.0 m wire. What is the period of oscillation?-Time, seconds = 2(pi) x (square

Physical difference between emiitter and collector

in a BJT both the emitter and collector are n-type or p-type depending on the transistor type, so with that in consideration, is there an actual physical difference between the emitter and collector?

Measurement/area question

John wants to fence in a portion of his backyard. The dimension of the area is 12 1/2 yards long and 5 1/2 wide. How many feet of fencing does John need to buy to enclose this area? A) 36 yards B)