Recent content by Aprilshowers

So what does the magnet do to the Alpha particles? So what does the magnet do to the Alpha particles that keeps them from being detected by the Geiger counter?

Does this look right? f(x) = 3x + 1 g(b) = (b^2 + 5b)^-1/2 Let b=f(x)=3x+1 Substitute 3x + 1 in for b: g(b)=((3x+1)^2+5* (3x+1))^-.5 =(9x^2+6x+1+15x+5)^-.5 =(9x^2+21x+6)^-.5 g(f(x))= (9x^2+21x+6)^-.5 Please advise

If f(x) = 3x + 1 and g(x) = (x^2 + 5x)^-1/2 find g(f(x))

So I multiplied 50000 x -1.6x10^-19 and I get for an answer: -8x10^-18 joules Does that look right?

Question: How much power does a light bulb connected to a 120-V outlet use if it draws .5A of current? My answer is: P=1.V =.5 x 120 =60Watts Does that look correct?

I would appreciate help with this problem: If a Van de Graaff generator is charged to 50,000 volts, how much energy does it take to add an additional electron to the charge on the sphere? (I know that the charge on an electron is -1.6 x 10^-19 C) Thanks

Thank you!

I do have calculator problems! I played around with the calculator until I think I have the answer: 2.304 X 10^-28 Does that look right?

Math help on previous force problem I guess I need some Math help. My book says the formula is F = k q^1 q^2 d^2 So when I plug in my information, my distance is 1, so I get down to: F = 9.0 X 10^9N X m^2/C2 times (1.6 X 10^-19C)^2 I cannot figure out how to work...

I am studying Physics, which I can usually understand, but the chapter on Electricity is totally confusing to me. Can anyone help with this question: At different times, a proton and electron are placed equidistant from a point charge. How do the magnitudes and directions of the forces...

The electric charge of an electron is -1.6 X 10 to the -19 power C. What is the force exerted between two electrons separated by one meter?

I need help with a problem I have struggled with for several days. Here is the problem: The specific heat of mercury is .03 cal/g degrees C, and it's boiling point is 357 degrees C. The specific heat of water is 1 cal/g degrees C. It takes 65 calories of energy to vaporize one gram of...

I am stumped on this question. Can anyone advise? The electric charge of an electron is -1.6 X 10 to the -19 power C. What is the force exerted between two electrons separated by one meter?

I know the formula to use for this problem, but cannot seem to make it come out with a reasonable answer. Can anyone help? If a meter stick travels at the speed of light relative to an observer, how long does the meter stick appear to the observer? (I cannot seem to make the radical...