Recent content by cesarsalad

PE_final + KE_final = PE_initial + KE_initial 0 + KE_final = (57000)*g*2.8 + 0 KE_final = (1/2)mv^2 = 0.5kx^2 = 57000*g*2.8 x = root (57000*g*2.8 / (0.5*4.9*10^6)) = 0.8 meters?

just use the equation for induced emf: -dflux/dt. flux = B(t)*area of half circle add this emf as a function of time to the battery emf of 2.0V. I think you add, at least. they tell you the B field is directed out of the page, but they don't tell you which way the battery is connected...

Hi, Thank you There are going to be an infinite number of reflections. These reflections add up as an infinite series. For example, the total reflection is the reflection from the ice + one that went through the layer once + one that went through the layer twice + etc. What I'm having...

net force = applied force - coeff*m*g

if u are given an angle, then just use Fx = F cos theta, Fy = F sin theta

How do I find the reflectivity of a combination of ice on top of water(infinite half-space) as a function of the thickness of ice? I know how to find it for each material, it's just rho = ((root(dielectric constant)-1)/(root(dielectric constant)+1) )^2. I'm given dielectric constants for both...