Recent content by hawaldko

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Homework Statement Red light is incident in air on a 30o - 60o - 90 o prism as shown. The incident beam is directed at an angle of φ1 = 34.3o with respect to the horizontal and enters the prism at a height h = 26 cm above the base. The beam leaves the prism to the air at a distance d = 77.2...

So does that mean the the voltage across each of them is 6?

So the potential has to be the same? How can it be the same if there are different resistors before it? I'm sorry, I'm just really not getting it.

Homework Statement A circuit is constructed with five resistors and a battery as shown. The battery voltage is V = 12 V. The values for the resistors are: R1 = 54 Ω, R2 = 142 Ω, R3 = 148 Ω, and R4 = 109 Ω. The value for RX is unknown, but it is known that I4, the current that flows through...

I got it! Thank you so much. I probably read your hints a hundred times, but they finally clicked!

Oh, okay! Thank you so much. I'm just really sketchy on my understanding of everything. Thanks again! :)

I actually spend some more time with this problem and I have all of the answers except for e. I know it a really big conceptual thing to know, but I don't really understand it. The normal force would be perpendicular to the plane of motion as it goes down the incline, which would mean that...

Okay, that makes sense, all I was thinking about was that there wasn't friction to slow it down. Thank you!

Homework Statement A mass m = 71 kg slides on a frictionless track that has a drop, followed by a loop-the-loop with radius R = 16.1 m and finally a flat straight section at the same height as the center of the loop (16.1 m off the ground). Since the mass would not make it around the loop if...

I'm sorry...I kind of need some more help. a. mv^r=121.149 and mg=61.74. I tried adding them together, but the solver said I was wrong. I'm not sure what else to do with the numbers.

Homework Statement A mass m = 6.3 kg hangs on the end of a massless rope L = 2.13 m long. The pendulum is held horizontal and released from rest. I already found the speed at the bottom of the pendulum's path and that is 6.46. I'm stuck on: a. What is the magnitude of the tension...