Recent content by osustudent2010

we have 9 tries to submit answers, i submitted 7.82 as my last try and it was right THANKS so much for everyones help, physics can drive me crazy sometimes!

so would it be the larger hypo. (5.25) and the smaller hypo. (2.57) added together (7.82)-- is that right?

i don't understand what is wrong the equation, this is for the small triangle (bird-hedge-mirror) right?

the image of the bird is located the same distance in front of the mirror as it is behind the mirror - 2.1 m is that right?

here is what i tried: tan (theta) = (4.5 - z)/2.1 tan (theta) = z / 4.3 I found z to be 3.02, and theta to equal 35.1 then I found the hypo. to be 5.25, I submitted this answer but it is not the correct one, where am I going wrong?

so for the small triangle it would be tan (theta) = z / 2.1 ?

so, would one expression be tan (theta) = z / 4.3 ? how do you find the other expression?

i think the length is equal to the hypo. of the right triangle formed between the camera and the mirror

Hi! I am having trouble with this question: You are trying to photograph a bird sitting on a tree branch, but a tall hedge is blocking your view. However, as the drawing shows, a plane mirror reflects light from the bird into your camera. If x = 4.3 m and y = 4.5 m in the drawing, for what...

thanks-- all i need to to was draw a picture :) thanks again

I've got a question I'm working on: A communications satellite is in an orbit that is 3.2 X 10^7 m directly above the equator. Consider the moment when the satellite is located midway between Quito, Equador, and Belem, Brazil; two cities almost on the equator that are separated by a...

Hi! Here is a phyics problem I am having trouble with: A simple pendulum is made from a 0.58 m long string and a small ball attached to its free end. The ball is pulled to one side through a small angle and then released from rest. After the ball is released, how much time elapses before it...

I got it! I made a calculation error earlier I got the answer by using this equation: E=Pt where P= equals the average power t= time THANKS so much for helping me through this problem, you are the best!

the units are V, so .0422 V P= (V^2)/R (via P=IV and V=IR) so I took P= (.0422^2)/.0228 The R came from the circum of the loop times the resistance per unit of length The answer I got was 1.85 J, but this isn't the right answer-- is there something I'm missing?

I found the EMF to be -.0422 (-NA delta B)/ delta t where N= the number of loops A = area B= magnetic field t= time