Answer:
a. about 20 years younger
b. Malcolm sits around for 49.94 years
c. <em>2.268x</em><em> m</em>
Explanation:
light travels 3x m in one seconds
in 20 years that will be 3x x 20 x 60 x 60 x 24 x 365 = 1.89x m
for the to and fro journey, total distance covered will be 2 x 1.89x = 3.78x m
Flo's speed = 80% of speed of light = 0.8 x 3x = 2.4x m/s
time that will pass for Malcolm will be distance/speed = 3.78x /2.4x
= 1575000000 s = <em>49.94 years</em>
the relativistic time t' will be
t' = t x
t' = 49.94 x
t' = 49.94 x 0.6 = <em>29.96 years</em> this is the time that has passed for Flo
this means that<em> Flo will be about 20 years younger than Malcolm when she returns</em>
<em></em>
relativistic distance is
d' = d x
d' = 3.78x x
d' = 3.78x x 0.6
d' = <em>2.268x</em><em> m</em> this is how far it is to Flo
Yes, both solid and liquid can be compressed.
We determine the electric potential energy of the proton by multiplying the net electric potential to the charge of the proton. The net electric potential is the difference of the final state to the that of the initial state. So, it would be 275 - 125 = 150 V.
electric potential energy = 150 (<span>1.602 × 10-19) = 2.4x10^-17 J</span>
Answer: Reflection is when light bounces off an object. If the surface is smooth and shiny, like glass, water or polished metal, the light will reflect at the same angle as it hit the surface. ... For a smooth surface, reflected light rays travel in the same direction. This is called specular reflection
Explanation:
Answer:
You should cover the hole at the other end of the tube.
Explanation:
The lesser the size of hole at the other end, the lesser the frequency of the sound that comes from the tube.