<span>The electrical potential inside a parallel-plate capacitor will increase linearly from the negative to the positive plate. If the charge is moving in the direction is naturally would move, the electric potential energy is said to decrease; if it moves in the opposite direction, it is said to increase. This is akin to lifting an object further away from the surface of the earth. As it is lifted higher, the electrical potential energy increases.</span>
Answer:
20 ms¯¹
Explanation:
3. Determination of the final velocity
From the question given above, the following data were obtained:
Time (t) = 4 s
Acceleration (a) = 5 ms¯²
Initial velocity (u) = 0 ms¯¹
Final velocity (v) =?
Acceleration is simply defined as the change in velocity per unit time.
Mathematically, it can be expressed as:
Acceleration (a) = final velocity – Initial velocity / time
a = v – u / t
With the above formula, we can obtain the final velocity of the car as follow:
Time (t) = 4 s
Acceleration (a) = 5 ms¯²
Initial velocity (u) = 0 ms¯¹
Final velocity (v) =?
a = v – u / t
5 = v – 0 / 4
5 = v / 4
Cross multiply
v = 5 × 4
v = 20 ms¯¹
Thus, the final velocity of the car is 20 ms¯¹
Answer:
It helps melt the ice away on their walkway.
Explanation:
The salt makes the ice to freeze at a lower temperature. So when a solute (salt) comes into contact with the ice the freezing point is lowered.
Answer: <em>I = </em>Δ(N*B*A) / R*Δt
and
<em>I= ΔФ </em>/ <em>R*Δt</em>
Explanation:
what is electromagnetic induction?
electromagnetic induction is a mechanism where current is induced in a coil or loop. To be specific Faraday's law of electromagnetic induction says that induced EMF is proportional to the induced current or emf.
FORMULA
<em>I= ΔФ </em>/ <em>R*Δt</em>
<em>BY EXPANDING THE FORMULA WE GET</em>
<em>ΔФ= </em>Δ(N*B*A)
by putting the value in equation we get:
<em>I = </em>Δ(N*B*A) / R*Δt
where A is area of circular coil π*r²
DATA
N is number of turns in the coil
r is radius of the circular coil
ΔB is magnetic field
Δt is time
R is resistance of coil
Answer:
Christian
Explanation:
Given that
Force applied by Sean ,F₁=100 N
Force applied by Christian ,F₂=200 N
Lets take mass of the box = m kg
As we know that from second law of Newton's
F= m a
F=Force,m=mass ,a=acceleration
From the above we can say that acceleration a₂ is greater than a₁ is for the same mass of the box.
Therefore Christian will acceleration more for the box.