Answer:
Yes, they are.
Explanation:
it says it has to be 20 characters long so this is random.
Galaxies are red shifted and in 1964 to scientists discovered leftover Radiation from the Big Bang
It would be the first option, A
because u use the equation: W = m*g
Explanation:
An object is attached to the spring and then released. It begins to oscillate. If it is displaced a distance 0.125 m from its equilibrium position and released with zero initial speed. The amplitude of a wave is the maximum displacement of the particle. So, its amplitude is 0.125 m.
After 0.800 seconds, its displacement is found to be a distance 0.125 m on the opposite side. The time period will be, 
We know that the relation between the time period and the time period is given by :


f = 0.625 Hz
So, the frequency of the object is 0.625 Hz. Hence, this is the required solution.