The rope of the length 6 m is fixed to a vertical wall in the horizontal x-direction. We send one transverse pulse on a rope in
1 answer:
Answer:
The pulse return in -y direction, the speed of the pulse is 4 m/s.
(Iv) is correct option.
Explanation:
Given that,
Length of rope = 6 m
Total time = 3 sec
Suppose, statements are
(I). The pulse return in+ y direction, the speed of the pulse is 2 m/s.
(II). The pulse return in+ y direction, the speed of the pulse is 4 m/s.
(III). The pulse return in- y direction, the speed of the pulse is 2 m/s.
(Iv). The pulse return in- y direction, the speed of the pulse is 4 m/s.
We send one transverse pulse on a rope in a vertical +y direction towards and it returns back -y direction
We need to calculate the speed of wave
Using formula of speed
Where, = length of rope in +y direction
= length of rope in -y direction
The speed of the pulse is 4 m/s.
Hence, The pulse return in -y direction, the speed of the pulse is 4 m/s.
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Answer:
The magnitude of the flux of electric field through a square of surface area is zero.
Explanation:
It is given that square box is parallel to yz-plane which has normal vector perpendicular to plane in x-direction. Angle between normal vector of area and electric field is 90°. Substituting in (1)
We can use the law of conservation of energy to solve the problem.
The total mechanical energy of the system at any moment of the motion is:
where U is the potential energy and K the kinetic energy.
At the beginning of the motion, the ball starts from the ground so its altitude is h=0 and therefore its potential energy U is zero. So, the mechanical energy is just kinetic energy:
When the ball reaches the maximum altitude of its flight, it starts to go down again, so its speed at that moment is zero: v=0. So, its kinetic energy at the top is zero. So the total mechanical energy is just potential energy:
But the mechanical energy must be conserved, Ef=Ei, so we have
and so, the potential energy at the top of the flight is
The total mechanical energy of the system at any moment of the motion is:
where U is the potential energy and K the kinetic energy.
At the beginning of the motion, the ball starts from the ground so its altitude is h=0 and therefore its potential energy U is zero. So, the mechanical energy is just kinetic energy:
When the ball reaches the maximum altitude of its flight, it starts to go down again, so its speed at that moment is zero: v=0. So, its kinetic energy at the top is zero. So the total mechanical energy is just potential energy:
But the mechanical energy must be conserved, Ef=Ei, so we have
and so, the potential energy at the top of the flight is
0.31m/s
Explanation:
Given parameters:
Time of travel = 4hrs = 4 x 60 x 60 = 14400s
Displacement = 4400m due west
Unknown:
Velocity = ?
Solution:
Velocity is defined as the displacement per unit of time. It is expressed in m/s or km/hr:
Velocity =
Velocity = = 0.31m/s
Learn more:
Velocity brainly.com/question/10883914
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