I apologize, I am totally confused regarding this. Is there any way you could dumb it down even further? The way I'm interpreting the problem, the only way that the time could be 1.5 seconds was if the ship was at rest relative to the planet. I'm close to getting it though. I believe I'm on the...
So does this change the actual answer? As far as I can see the answer is either 1.5s or 1s at this point, but I don't think the book takes into account the distance the ship travels in the 1 second that passes.
1. A spaceship is moving directly toward a planet at a speed of c/2. When the spaceship is 4.5E8 m from the planet a pulse of light is emitted by someone on the planet. As measured by someone on the spaceship, how long does it take the light pulse to travel from the planet to the ship?
2...
Okay let's say that we have the following:
G (Gravitational constant) = 6.67E-11
mass of planet 1 = 200,000 kg
mass of planet 2 = 40,000 kg
lets say that the distance r = 10,000 m
all are numbers I just randomly made up
Using the equation: F_{g} = \frac{Gm_{1}m_{2}}{r^{2}}
we just...
1. This question isn't so much a homework question per se, however I am having difficulty using certain equations to find the albedo of the Earth. In attempting to find the albedo, I am using two equations, shown below, however each equation gives a different answer. I am given the following...