A flashlight is charged by shaking an internal magnet back and forth through coiled wires.
Explanation:
Charging a flashlight by shaking an internal magnet back and forth through coiled wires can cause electromagnetic induction to occur. The wire is in the vicinity of changing magnetic fields.
- Electromagnetic induction or induction is the production of electromotive force(EMF) by varying the magnetic field in an electrical conductor.
- The wire serves as the electrical conductor.
- As the magnetic flux on it changes, the electromotive force is then produced.
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Answer:
The awnser for "Electricity that flows in a closed path is called a" circuit.
Answer:
lol what do you mean by this
Answer:
The maximum force that can be applied without causing the two 43- kg crates to move is 2.7KN
Explanation:
Given data
μ coefficient of friction 0.31
mass of two crates =2*43kg
=86kg
Weight of the two crates =mg
Assuming g= 9.81m/s²
W =86*9.81= 843.66N
We know that force against friction is given by
W =μR
Where
μ is coefficient of static friction
R limiting force
To solve for let's make it the subject of the formula
R= W/μ
R=843.66/0.31
R= 2721.5N
R= 2.7KN
Answer:
Yes, dimensionally the equation is correct.
Explanation:
This equation is the kinematic equation for uniformly accelerated motion, then we study the units of each member to conclude whether it is dimensionally correct.
vi = initial velocity [m/s]
a = acceleration [m/s^2]
t = time [s]
v = final velocity
therefore we have:
[m/s] + [m/s^2]*[t^2], the second term now is m/s
[m/s] + [m/s] = [m/s]
So the analysis is correct.