Recent content by goWlfpack

oh ok, so b/c in this case the observer is moving the time intervals will not seem any different? so heart rate stays the same. The dimensions should as well then, b/c the area she is in is moving at the same speed as her. she would feel heavier though and find it harder to breathe b/c of the...

got it! green check! :) i always miss little things like that! thanks so much!

well with length contraction, if the observer is moving, objects appear shorter if they are stationary, and a time interval to an observer in motion will appear longer then an observer at rest. So the heart rate would seem slower?? but would it actually change?

ok, i took the proper length, which is 2.3 and multiplied it by the square root of (1 - v^2/c^2) i used .89 as v and 2.99e8 for c when i did v^2 / c^2 i got 8.86e-18 when i do 1 - that answer, the change is so insignificant that it just counts as one. the square root of 1 is 1 and 1...

thats where i found the equation, the v squared/ c squared came out so small that 1 minus that came to just 1... and then the length is the same... but that was wrong

astronaut traveling.. what effects would she feel?? Homework Statement An astronaut is traveling in a rocket in outer space in a straight line at a constant speed of 0.5c. Which of the following effects would she experience? Her heart rate would change. She would feel heavier. She would...

Relativity and observed length of a moving object! Homework Statement A box is cubical with sides of proper lengths L1 = L2 = L3 = 2.3 m, as shown in the figure below, when viewed in its own rest frame. This block moves parallel to one of its edges with a speed of 0.89c past an observer...

Homework Statement The nickel's image in the figure below has twice the diameter of the nickel when the lens is 2.90 cm from the nickel. Determine the focal length of the lens. Homework Equations M = h'/h = - (p/q) The Attempt at a Solution i don't really know how to start this...

Homework Statement A goldfish is swimming at 4.40 cm/s toward the front wall of a rectangular aquarium. What is the apparent speed of the fish as measured by an observer looking in from outside the front wall of the tank? The index of refraction of water is 1.333. Homework Equations p =...

Homework Statement A layer of ice having parallel sides floats on water. If light is incident on the upper surface of the ice at an angle of incidence of 15.0°, what is the angle of refraction in the water? Homework Equations The Attempt at a Solution i know its not so simple that...

Homework Statement A certain kind of glass has an index of refraction of 1.640 for blue light of wavelength 440 nm and an index of 1.605 for red light of wavelength 670 nm. If a beam containing these two colors is incident at an angle of 30.0° on a piece of this glass, what is the angle...

Homework Statement A resistor, capacitor, and inductor are connected in series across an AC generator. Which of the following statements is true? The power delivered by the generator does not depend on the phase difference between the generator voltage and current. All the power is lost...

ok so that gives me the change in flux. But how do i go about getting the emf without having a value for "N" or the number of turns?

Well the change in magnetic flux would be flux=B(deltaA) so the change in flux should equal .001508 then faraday's law is emf=-N (change in flux)/change in time but there arent any turns in this wire and also there is no time given. but if you put in 1 for each you get the change in...

yea sorry minor mathmatical error. I got it now! thanks for all the help! :)