The strong nuclear force isnt quite strong enough to overcome electrosatic repulsion between two protons
Answer is Option C
hope it helps you
After it's long use, the bridge continuously undergoes through alternating strains. in result, the elastic strength of the bridge gets reduced. while the process goes on the bridge makes elastic fatigue and a permanent change happens which makes it collapse which is the reason why bridges are declared unsafe after a long use :)
Some guidance notes which may help.To calculate the current flow, Ohm's law can be used. This can be written as current=voltage/resistance, or I=V/R. V is 1.5V.R for the copper wire quoted would be calculated as R = resistivity x length/cross sectional area. The area would be calculated from the formula area = pi x diameter squared/4So, R=resistivity x length divided by (pi x diameter squared/4)Until is the resistivity of copper is known, that's about as far as can be gone.Any further questions, please ask.
Answer:
option E
Explanation:
given,
Parallax angle(d) = 1 arcsecond
using Parallax formula
p is the parsecs angle which is measured in 1 arcsecond
d is the distance in parsec
now,
we know,
1 parsec = 3.26 light year
hence, the answer will be option E
