Recent content by endverse

Agh sorry, please lock this thread. I just rearranged incorrectly for d... it's d=vt not d=v/t :\

Homework Statement Snoopy is running to his doghouse at 3.0 m/s [N 15° E] for 35 s. Charlie has a bone and calls his dog back. Snoopy immediately turns around and runs towards Charlie at 4.5 m/s [S 45° W] for 30 s. Find Snoopy's displacement.Homework Equations dt = d1 + d2 d1=d1x + d1y & d2=d2x...

Sorry for my ignorance, I understand what you explained previously, but I don't understand what I get for f(x) and g(x)?

Homework Statement Determine a sine function, f, and a cosine function, g, such that y = sqrt2sin(pi(x-2.25)) can be written in the form of f-g.Homework Equations (f-g)(x) = f(x) - g(x)The Attempt at a Solution I think that you should sub in the y= equation so that you get: sqrt2sin(pi(x-2.25))...

Ah, okay. I wasn't sure of if they were related. I read something to this effect: "But the last (important) thing that inflation predicts was so profound, because it wasn't yet observed when it was predicted. Quantum mechanics tells us that empty space isn't completely empty. It's full of...

How is the inflation theory supported by/related to the matter-antimatter annihilation concept of quantum mechanics?

Elementary question -- Special relativity Hi, I have a really elementary question on the theory of special relativity. Here is an excerpt from the website einstein-online.info that confused me: -- http://www.einstein-online.info/elementary/specialRT/speed_of_light The question is: How do...

no help?? I have this problem set due tomorrow.. any answer would be so appreciated

Homework Statement If the balloon in the diagram drawn below is accelerating upwards at 0.40 m/s (squared), calculate the tension in each piece of rope. Assume that the rope has no mass. The diagram: Homework Equations F = ma The Attempt at a Solution For the bottom piece of rope...