Answer:
The signal will move down by 1 division
Explanation:
We have two signals here:
- An AC signal (sine wave), centered at 0 V, with amplitude 2 V (it means that it goes from a maximum of +2 V to a minimum of -2 V)
- A DC signal, which appears in the oscilloscope as a flat line, of 1 V
If we add these two signals together, we are adding a constant offset of +1 V to the sine wave, so the sine wave will move up by one division
Now, if we readjust the position so the trace is centered again at 0 V, we are moving the signal down by 1 division
Then, if we switch the signal in channel B from DC to AC, we are removing the constant offset of 1 V - so the signal will be now centered at -1 V. Therefore, the signal will move down by 1 division.
Answer:
v₂ = 17.98 m/s
Explanation:
given,
mass of ball = m = 4.6 Kg
length of string = L = 6.6 m
force acting toward the center is equal to the force exerted by centripetal acceleration
now, calculating the speed of ball at the bottom of the circlr
work done by the gravity = change in kinetic energy
v₂ = 17.98 m/s
Answer: a) 110 *10^-6 m (110 μm); b) 82.86*10^-6 m (82.86 μm).
Explanation: In order to explain this problem we have to consider the expresion for the dark fringes in a difraction pattern for a single narrow slit. It is given by:
a*sin (θ)= m*λ where a is the slit width. θ is the angle corresponding the m dark fringe from the central axis. λ is the wavelength of the incident light.
Then we have m=10 and θ=6° so;
a=10*1152*10^-9/Sin(6°)=110 *10^-6 m
Finally if the whole system is inmmersed in water (n=1.33), we have to add the refractive index in the path difference then: a*n*sin(θ)
a*n*sin (θ)= m*λ then
a= m*λ/(n*sin (θ))=10*1152*10^-9/1.33*Sin(6°)= 82.86* 10^-6 m
<h2>
<u>How</u><u> </u><u>to</u><u> </u><u>solve</u><u>?</u></h2>
We know that, Velocity is the rate of displacement covered. Displacement is the shortest path between the Initial and Final point covered by the body. So,
- Velocity = Displacement / Time
And, when it comes to Average velocity, It is the total displacement by total time taken. So, By using this let's solve this question.....
<h2>
<u>Solution</u><u>:</u></h2>
✏️ Refer to the attachment...
Let the body goes to point A that is 7 m East of the Initial point. Then it comes backward because West is opposite to East in perpendicular direction. It covers 1.5 m backwards in the same line to reach B which is the Final point.
So,
- Displacement = Final point - Initial point
⇛ Displacement = 7 m - 1.5 m
⇛ Displacement = 5.5 m
Total time taken,
⇛ 2 hours + 1 hour
⇛ 3 hours
Finding Average displacement,
⇛ Total displacement / Total time taken
⇛ 5.5 m / 3 hours
⇛ 1.83333.... hours
So, the Final answer is,
<u>━━━━━━━━━━━━━━━━━━━━</u>
Answer:
Explanation:
To find the force we proceed by defining the variables we have,
The charge on one of the balls is defined under the equation,
Due to the height we need to calculate the potential energy at the height of 115m,
The kinetic energy would be given by
From the law of conservation we equate the two equations
In this way we now calculate the strength of the particle