Explanation:
rigidibiyu. jtibiti vekov oeo i irki jri kri oro lro
Answer:

Explanation:
t = Time taken
u = Initial velocity
v = Final velocity
s = Displacement
a = Acceleration
m = Mass of bullet = 
r = Radius of barrel = 

Pressure is given by

The pressure of the expanding gas is 
Answer: The correct answer is : From the period-luminosity relation for Cepheids, he was able to determine the distance to Andromeda and show that it was far outside the Milky Way Galaxy.
Explanation: Hubble's law says that the recession velocity of a galaxy is directly proportional to its distance from us. Hubble measured the distance to the Andromeda galaxy by applying the period-luminosity relationship to Cepheid.
T sin θ = M g = W cable supporting weight
T = 100 * 9.8 / sin 40 = 1525 N
T cos θ = Th horizontal force due to cable
Th = 1525 cos 40 = 1168 N