Recent content by iaberrant

Homework Statement Some gliders are launched from the ground by means of a winch, which rapidly reels in a towing cable attached to the glider. What average power must the winch supply in order to accelerate a 189-kg ultralight glider from rest to 20.5 m/s over a horizontal distance of 52.2...

Homework Statement A speedboat starts from rest and accelerates at +2.03 m/s2 for 8.87 s. At the end of this time, the boat continues for an additional 8.86 s with an acceleration of +0.380 m/s2. Following this, the boat accelerates at -1.20 m/s2 for 8.11 s. (a) What is the velocity of the...

To my knowlegde there are contradictions between quantum physics and general relativity. What is the nature of thoes?

Oh wow i didnt know that the two were related, do you possibly have a link to where I can read more about this contradiction ?

I do not believe the Special theory of relativity is in correct, however the question did come up in class the other day. If some people do believe it to be incorrect, than what are some of these theories as to why it is in correct? I was just wondering and curious about the whole subject. I...

thankyou! also how do you calculate the lorentz factor ?

So what do you mean by stationary points? does that mean the distance to the plant and the speed ? so if the planet it 12 light years away then Distance = 12 x 10^16m = 1.2 x 10^17 m and then taking Bill's speed of 0.93c, does it need to be converted to m/s ? so : 0.93 x the speed...

By now i must be driving you guys crazy with my relativity questions , but this is my last one! i swear! =] Homework Statement A noted physicist was stopped by police for traveling through a red traffic light. The physicist argued that to because he was traveling fast, the colour of the...

Homework Statement Two twins, Bill and Ben are 30.0 years old and they leave Earth for a distant planet 12.0 light years away. The twins depart at the same time on Earth, and travel in different space ships. Bill travels at 0.93c, while Ben travels at 0.70c. What is the difference between...

yes it states weight and i think i have an idea of how to do it using the formula M= Mo / [√ 1 - v^2/ c^2] where Mo is 78kg and velocity is 0.93c M= 78 / [√ 1 - (0.93c^2)^2/ c^2] M= 78 / [√ 1 - 0.93c^2] M=212.2105291kg So the weight would be approximately 212.2 kg is this correct working and...

ok so would that mean that that t would be the time in the spaceship ? 30 minutes which converts to 1800 seconds? then velocity is simply 0.93c and substituting these values into the equation we get: t'= t / (√ 1 - v^2/ c^2) t'= 1800 / [√ 1 - (0.93c^2)^2/ c^2] t'= 1800 / [√ 1 - 0.93c^2]...

Homework Statement On Earth a man weights 78kg. what is his weight on a starship which is traveling at 0.93c? Homework Equations Are the following correct for mass change in terms of relativity? mr = E/c2 m0 = sqrt(E2/c4 - p2/c2) Where E is energy, p is momentum and c...

Homework Statement On a Starship, which travels at 0.93c, dinner is served between 8:15pm and 8:45pm, according to the clock on the ship. How long is dinner served according to stationary observes on Earth watching the ship on a video monitor? Homework Equations I believe the...