The momentum of a 5-kilogram object moving at 6 meters per second is-
1 answer:
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Answer
we know,
where
E = energy
h = planks constant
λ = wavelength
from the above equation, we can see that energy is inversely proportional to wavelength.
that is why
Violet color light has low wavelength but the energy of Violet light is very high whereas red light has low energy and high wavelength.
Answer:
current I = 38 mA
Explanation:
given data
distance r = 7.2 cm
repel each other force per unit length \frac{F}{l} = 4.2 nN/m
solution
we know 2 wire is parallel and when current flow through these wire they exert force each other due to magnetic field
and current I(1) = I(2) ................1
so
..................2
put here value
4.2 × =
solve it we get
I = 0.038884 A
current I = 38 mA