Recent content by Aamun

Well the potential energy is calculated by how high the object is (Ep=mgh), and since kinetic is the object when it is in motion (Ek=1/2mv^2), you can safely say that if Ep=0, Ek=Ep@point 1. The thinking behind it is calculating the total mechanical energy, which is Em=Ep+Ek, so in theory the...

Oh yeah! Ok thanks I got it now!

Homework Statement A metal sphere with a negative charge of 3.00x10^-6C is placed 12.0 cm from another similar metal sphere with a positive charge of 2.00x10^-6C. The two spheres momentarily touch, then return to their original positions. Calculate the electrostatic force acting on the two...

Homework Statement Look at the diagram. Draw the wavefronts as they would appear after the reflection. Draw and identify the following things on the diagram. Incident ray Normal Reflected ray Angle of Incidence Angle of reflection Homework Equations n/a The Attempt at a...

Ok, got it! Thanks for the help =)

I know about the two separate equations.. but is n1=air?

Homework Statement The index of Refraction for a diamond for red light, 656 nm, is 2.410, while that for blue light, 434 nm, is 2.450. Suppose white light is incident on the diamond at 30.0 Degrees. Find the angles of refraction for these two colors. Homework Equations sinr/sini = n2/n1 =...

Ok, I got it, thanks a bunch! =)

So it would be 4/84.5= 0.047 minutes per oscillation = 2.84 oscillations per second?

Homework Statement A pendulum which is 2.00m long makes 84.5 complete oscillations in 4.00 min. What is the acceleration of gravity at that spot? Show all work and formulas. Homework Equations T=2(3.14) SQRT(l/g) The Attempt at a Solution L= g*(T/2pi)^2 2.00=g*(4.00/6.28)^2...