Answer:
The electric field does positive work on the charge.
The potential energy associated with the charge decreases.
Explanation:
We know that force due to electric filed on a charge particle q given as
F = q E --------1
If the positive charge is moving in the direction of electric filed it means that force due to electric field and displacement of particle due to motion is in the same direction.So the work done due to electric filed will be positive.
Work = Force . Displacement
W= F.d
F= W/d ---------2
From equation 1 and 2
W/d = q E
W/ q = E/ d
We know that voltage difference ΔV
ΔV = E/ d
ΔV =W/ q
So the potential difference will be decrease because charge is positive.So the potential energy will be decreases.
Answer:
It is A. Open Circuit.
Explanation:
Filament heats up and produces the light. If the filament breaks, the current does not flow and the circuit will be open. The ammeter will reach zero when this happens.
the answer is bond energy but I am not pretty sure
C. The average acceleration is positive and smaller in magnitude than the initial acceleration.
<h3>
What is average velocity?</h3>
Average velocity is defined as the change in position or displacement (∆x) divided by the time intervals (∆t) in which the displacement occurs.
a = Δv/Δt
where;
- Δv is change in velocity
- Δt is change in time
a = (250 - 248) / (70 - 40)
a = 0.067 m/s²
Thus, we can conclude that the average acceleration is positive and smaller in magnitude than the initial acceleration.
Learn more about average acceleration here: brainly.com/question/17587670
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Answer:
20 Hz, 20000 Hz
0.0166 m, 16.6 m
Explanation:
The minimum frequency that a human ear can hear is 20 Hz
The maximum frequency that a human ear can hear is 20000 Hz.
v = Velocity of sound = 332 m/s
Wavelength is given by
The longest wavelength that can be heard by the human ear is 16.6 m
The shortest wavelength that can be heard by the human ear is 0.0166 m.
