Recent content by heelp

What is the standard Diameter for the wire. This one is from my lab of diffraction of a light from a single slit and on a wire. Thanks in advance for your help.

Oops. r= (E-V/v)*R This equation shows that knowing the emf E, the voltmeter's reading of the terminal voltatge V, and the resistance of the voltmeter R, the unknown internal resistance r of the battery can be computed. I'm trying to find r. I know E,AND V. But I don't know how to find R.

In this equation I r= E-V/V*R How would I find R? thanks in advance you your help.

I'm talking about a bs

If I have a degree in computer engineering technology can I upgrade it to a degree in computer engineering by simply working and gaining experience?If so how many years of experience would it take to get an advance in my career. Thanks for your answers in advance.

tanx +cosx/sinx = secx + cotx This is what I have so far cos^2x sin^2/cos/sin^2x/cos^2x =sinX^2/cosx/sinx^2 Thanks for the help in advance.

Thanks for your help but I'm a little confuse on the first question. When I get the answer for the first equation do I multiply by cos30 or 60? I would I know what to do?

Three positive particles of equal charge,+11.0uc, are located at the corners of an equilateral triangle of side 15,0cm calculate the magnitude and direction of the net force on each particle. Here is what I got so far f1= kq1q2/r^2 =(9.0*10^9N*m^2/c^2/)(11.0*10^-6)^2= 48.4N F1 = COS30(48.4)=...

How would I know when the charges are negitive and positive? Along the x and y-axis Thanks in advance for your help.

What is the whole concept behind the elctric field? I also don't under stand fields lines. Its hard for me to grasp theses concept. Thanks in advance for your help.

m is the mass

what mass of steam at 100 c must be added to 1.ookg of ice to yeild liquid water 20c ? this is what I have so for c*m* displacement of temperature =m *L

the 1.2okg of a hammer has a speed of 6.5m/s just before it strikes a nail and is brought to rest. Estimate the temperature rise of a 14g iron nail generated by such hammer blows done in quick succession. Aaaume the nail absorbs all the energy.

I understand t = f*d but where is that distance coming from.

So is the large force able to produce a small torque because of the mass of the object?