Answer:
okay so, An electric circuit is a closed loop through which current can actually flow. All electric circuits must have a voltage source, for example a battery, and a conductor, which is usually a wire.
how does it flow or how does .current flow in a circuit ? When a wire is connected to battery terminals which is electrons, electrons flow from negative to positive. Electrons have a negative charge in case you didnt know. they are repelled from the negative and attracted to the positive.
if this helped please mark this as brainliest!!! :)
You said T = 2 · π · √(L / g)
(I think that's the formula for the full-swing period of a simple pendulum.)
Divide each side by 2π : T/2π = √(L / g)
Square each side: (T/2π)² = L / g
Multiply each side by ' g ' : L = g · (T/2π)²
Answer:
0.6m/s²
Explanation:
Given parameters:
Initial velocity = 3m/s
Final velocity = 4.5m/s
Time taken = 2.4s
Unknown:
Average acceleration = ?
Solution:
To solve this problem, we use the expression:
Acceleration =
v is the final velocity
u is the initial velocity
t is the time taken
Acceleration =
= 0.6m/s²
Answer:
A(i)
The solution to this question is shown on the second uploaded image
A(ii)
The final speed is 
B
The block speed after a distance L is 
Explanation:
From the question
The net force i the x-direction is mathematically represented as

From the the diagram in the second uploaded image we see that

Therefore

Making a the subject

Applying the law of motion

where u = 0 m/s and s =L

=> 
According to Energy conservation law and work theorem
Workdone by F + Workdone by gravity = change in kinetic energy
Mathematically this is given as

Since u = 0 m/s
