Rubber is a insulator so current cannot pass through it where as metal is a conductor which allows current to pass through it
Answer:
a dog walking or their phone rings or heard a neighbor talking to them
Answer:
Explanation:
a ) Slit separation d = .1 x 10⁻³ m
Screen distance D = 4 m
wave length of light λ = 650 x 10⁻⁹ m
Width of central fringe = λ D / d
= 
= 26 mm
b ) Distance between 1 st and 2 nd bright fringe will be equal to width of dark fringe which will also be equal to 26 mm
c ) Angular separation between the central maximum and 1 st order maximum will be equal to angular width of fringe which is equal to
λ / d
= 
= 6.5 x 10⁻³ radian.
I'm not completely sure, but I think it's 3.4 newtons. I hope you get it correct.
Answer:
40,000N
Explanation:
Force = Acceleration × Mass
2000×20=40,000