Recent content by baileya

Homework Statement You have decided to make a home made cyclotron (particle accelerator). You decide to use a household circuit use a 120V, 15 Amp circuit. If 14-gauge copper wire has a resistance per unit length of 3 ohm per 1000ft, what length of wire is required to limit the current to 15A...

okay so I got a resistance of 144 ohms. this means a current of .83 so if the max is 15A, then you can have 18 lights.

The current stays the same in a series circuit, does it not? But what would be the current? Would it be .83A, which is what I calculated as the amperage per lamp for the first part of the question. I found that 18 lamps can be connected for the parallel circuit, but for series I'm not sure how...

Homework Statement For this problem we will consider a simple household circuit. In your house the power is supplied at constant voltage of 120-V (not quite...) and each circuit breaker can handle a maximum of 15-Amps. Light bulbs are rated assuming that a 120-V drop occurs across them. If...

Homework Statement Derive the equation 2t=(n+1/2)(lamba/index of refraction) to show it's the correct eq'n for constructive interference on reflection. Include a diagram. Homework Equations 2t=(n+1/2)(lambda/index of refraction) The Attempt at a Solution I'm not sure how you'd show...

Homework Statement If we have 3 materials with the same thickness but different indices of refraction (1st= 1.33, 3rd=2.419) which would take the longest time for light to pass through? Why? Homework Equations n/a The Attempt at a Solution I want to say it's the third one simply...

Homework Statement As you are lying on the beach this past summer, you watch in awe as a super huge strato-nimbo-cummulus storm cloud roll in. You pull out your iphone and use the "electroscope" App allowing you to measure the charge on the storm cloud. It reads +40C. You tell your bf/gf...

so the best lens is the lens with the highest power?

oh m-1 is the same as 1/focal length

so you mean to say that the +6.5 would work better?

Homework Statement You have paid big bucks to see Season of the Witch at the 3-D IMAX theater in Vancouver. Just before the movie is about to begin, the theater staff tell you that the lens for the projector has just broken! You really want to see the movie and decide that it should be simple...

ohhh! that makes so much sense to me now :) thank you!

I'm just wondering how it works exactly? How can a solid submersed in a liquid somewhat "disappear". I've tried googling it with no luck and I'm super intrigued by this whole concept. PS: the more clear and simple you can explain it, the better.. I tend to get confused easily by things like this.

I'm just wondering how I would figure out the displacement for the y axis? I'm not sure what I would use and what units it would be?

Homework Statement So I have to make a snapshot & history graph of a wave. I chose to do a radio wave. However, I just want to know what the measurements for amplitude and wavelength. Also, there's no specific way to draw a snapshot of a radio wave is there? I can just draw the wave...