Please assist me with the attached questions. Thanks. Attached: 1) Galaxy A is found to be receding from us with a speed of 0.8c. Galaxy B I found to be receding from us with a speed of 0.4c. (a) What is our velocity as seen from galaxy A? (b) What is velocity of galaxy B as seen from galaxy A, if both are seen in the same
At what will the crab nebula cross the celestial median on March 12 and 13 2005. The right ascension is 05 31 30 and declination is 21 59 00.
Junior high studetn needs help with understanding concept behind grvaity. Help with following basic questions in simple terms please. 1. Imagine you started to walk towards the west. Imagine that you can walk forever and that you can even walk on water. If you walk in the same direction forever, what will happen? Where will y
1. A singly charged positive ion has a mass of 2.5*10^-26kg. After being accelerated through a potential difference of 250V, the ion enter a magnetic field of 0.50T, in a direction perpendicular to the field. Find the radius of the path of the ion in the field. 2. Two ions with masses of 5.1*10^-26kg move out of the slit of
See attachment for problem statement. Forces interaction: strong, electromagnetic, gravitational, and weak.
Why is the expansion of the universe not measurable inside a classroom?
Please help in calculating the Hubble constant, that is, the number of km/s of velocity per Mpc of distance.