can someone help me answer this correctly in the next 20 minutes? I’ll give out a brainliest if you can answer it right :)
1 answer:
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Answer:
Energy is found as:
E = 1.987·10⁻¹⁹ J
Explanation:
Energy of a single photon of infrared light can be found by using the following formula:
where
E = in Joules
h = Planck's constant = 6.627×10 ⁻³⁴ J
f = frequency in hertz
It can also be written as:
where
c = 2.998×10⁸ ms⁻¹
λ = wavelength
Wavelength is given in the question which is:
λ = 1×10⁻⁶m
Substitute all the values in the Energy formula
Answer:
<h3>The 28 loops wound on the square armature</h3>Explanation:
Peak output voltage V
Area of square armature
Magnetic field T
Angular frequency
According to the law of electromagnetic induction,
Where number of loops of wire.
≅ 28
Thus, 28 loops of wire should be wound on the square armature.
Answer:
Case A
Explanation:
given,
size of bacteria = 1 mm x 1 mm
velocity = 20 mm/s
size of the swimmer = 1.5 m x 1.5 m
velocity of swimmer = 3 m/s
Viscous force
for the bacteria
for the swimmer
from the above force calculation
In case B inertial force that represent mass is more than the inertial force in case of bacteria.
Viscous force is dominant in case of bacteria.
So, In Case A viscous force will be dominant.