Answer:
if one wave has a negative displacement, the displacements would be opposite each other, so the displacement where the waves overlap is less than it would be due to either of the waves separately.
-causes a moment where the net displacement of the medium is zero. energy of waves hasn't vanished, but it is in the form of the kinetic energy of the medium
-then both emerge unchanged
Explanation:
<em>Speed of light in vacuum = 3.0 × 10⁸ m/s</em>
<em>Speed of light in water = 2.25 x 10⁸ m/s</em>
<em>Refractive index of water = ?
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<em>We know that </em>
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<em>Refractive index of water = </em>
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<em>Refractive index of water = </em>
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The price of apples has jobs but non-zero not buy anymore because she has enough to what of 1
Answer: The power is 156 watt
Explanation:
is in the attachment
m = mass of the person = 82 kg
g = acceleration due to gravity acting on the person = 9.8 m/s²
F = normal force by the surface on the person
f = kinetic frictional force acting on the person by the surface
μ = Coefficient of kinetic friction = 0.45
The normal force by the surface in upward direction balances the weight of the person in down direction , hence
F = mg eq-1
kinetic frictional force on the person acting is given as
f = μ F
using eq-1
f = μ mg
inserting the values
f = (0.45) (82) (9.8)
f = 361.6 N