Two identical waves are traveling toward each other in the same medium. One has a positive amplitude, meaning that its peaks onl
y go upward, and the other wave has a negative amplitude, with peaks going downward.
What will occur when the waves peak at the same place at the same time?
constructive interference
destructive interference
a reflecting wave
wave refraction
What will occur when the waves peak at the same place at the same time?
constructive interference
destructive interference
a reflecting wave
wave refraction
2 answers:
The correct answer is Destructive Interference.
Consider the image attached below. Two waves are travelling towards each other. Blue wave always has a positive peak and the red wave always has a negative peak.
Now imagine these waves are moving through a rope. If blue waves will try to move the rope in positive direction, the red wave will pull it down, and thus the two waves will cancel the effect of each other. Thus resulting in a destructive interference.
Consider the image attached below. Two waves are travelling towards each other. Blue wave always has a positive peak and the red wave always has a negative peak.
Now imagine these waves are moving through a rope. If blue waves will try to move the rope in positive direction, the red wave will pull it down, and thus the two waves will cancel the effect of each other. Thus resulting in a destructive interference.
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Answer:
Work done, W = 19.6 J
Explanation:
It is given that,
Mass of the block, m = 5 kg
Speed of the block, v = 10 m/s
The coefficient of kinetic friction between the block and the rough section is 0.2
Distance covered by the block, d = 2 m
As the block passes through the rough part, some of the energy gets lost and this energy is equal to the work done by the kinetic energy.
W = 19.6 J
So, the change in the kinetic energy of the block as it passes through the rough section is 19.6 J. Hence, this is the required solution.
Answer:
(a). The rotational inertia is
(b). The magnitude of the magnetic torque is
Explanation:
Given that,
Mass of neutron
Density of neutron
(a). We need to calculate the rotational inertia
Using formula of rotational inertia for sphere
...(I)
We know that,
Put the value of volume
Put the value of R in equation (I)
Put the value into the formula
The rotational inertia is .
(b). We need to calculate the magnitude of the magnetic torque
Using formula of torque
Put the value into the formula
The magnitude of the magnetic torque is
Hence, (a). The rotational inertia is
(b). The magnitude of the magnetic torque is