Recent content by Dr. S

I'd love some help with this one, it's really been bugging me.

Homework Statement You have a horizontal spring system such that it undergoes SHO on a frictionless surface. with a known mass attached at the end of the spring. When that mass reaches its maximum position (amplitude) a second identical mass is dropped on top of the initial, effectively...

Got it, thanks guys. :) (747 nC is correct).

sin 70° = Ty/T T = (m*g)/sin 70° T = 0.003*9.81/sin 70° T = 0.03132 N Tx = T*cos 70° Tx = (0.03132)*cos 70° Tx = 0.01071 N 1/2*r = sin 20° r = 0.6840 m Tx = k*q2/r2 q = (Tx*r2/k)1/2 q = [(0.01071)(0.6840)2/(8.99*109)]1/2 q = 747 nC = 7.47* 10-7 C How about now?

Homework Statement Two 3.0g spheres on 1.0m-long threads repel each other after being equally charged, as shown in the figure. Homework Equations F = k*q1*q2/r2 The Attempt at a Solution sin 70° = Ty/T T = (m*g)/sin 70° T = 0.003*9.81/sin 70° T = 0.03132 N Tx = T*cos 70° Tx =...

Inverse square law? How I would I go about using that here? Thank you, by the way. :)

Could really use some input!

Thank you for the help!

The material (container + water in this case) sits on a circular turn table with a 360° protractor built onto its outer edge. The surface of the material that receives the incident beam is perpendicular to the normal marked at 0°. An incident beam, the result of an incandescent bulb's light...

Anyone have any additional insight?

Will this come into play if the incident ray is at 0° and perpendicular to the container's surface though? If the incident ray will pass through acrylic media, and the resulting refracted/transmitted ray will be at 0°, then why would the container affect the incident ray in such a strange way in...

No, I haven't run this experiment yet. Based on the description of the lab, we're not supposed to have this plot run through the origin. It's confusing for me too, so I'm sorry if I'm not getting the point across. I want to understand the mechanics of why the line isn't supposed to run through...

Homework Statement Plot a graph of sinθ versus sinθ' where θ is the incident ray and θ' is the refracted ray and use the graph to determine the index of refraction of distilled water, the medium through which the incident ray passes. Draw the graph without including the origin as a data...