The area under a speed-time graph is the distance. ... This is because speed and distance are scalars. The area under a velocity-time graph is the displacement. Velocity can be negative if an object is moving backwards.
Answer:
kinetic frictional force opposes the relative motion between the surfaces in contact of the book and the table.
Explanation:
- When a book slides on across the table and comes to stop then there must be force acting on it which hinder its state of uniform motion.
- According to the Newton's first law of motion every body continues to be in the state of rest or in uniform motion until acted upon by any external force.
- Here while the book slides on the table there acts a force of friction between the table surface and the surface of the book which is in contact to the top of the table while the relative motion between the surfaces there acts a kinetic frictional force which opposes the relative motion between the two.
I included air resistance because the bike is moving kinda fast so it probably matters for your problem
Any point in the wire has 1.12 x . electrons flow per second.
<h3>What causes a current in a wire?</h3>
- Electric current in a wire, where electrons serve as the charge carriers, is a measurement of the amount of charge that moves through any point of the wire in a given amount of time.
- A free electron is drawn to a proton to become neutral if an electron is added to the wire.
- Lack of electrons can result from pushing electrons out of their orbits.
- Electric current is the name given to the constantly moving electrons in wire.
The current is the quantity of charge Q flowing through a certain point of the wire in a time interval of .
I = .
by using this relationship
I=1.80 A, we can find the charge passing any point in the wire in 1 second:
Electric Charge, Q = 1.80 C.
To find how many electrons corresponds to this charge, we should divide this value by the charge of a single electron
charge of the electron = 1.6 x C.
No. of Electrons = Q/q = = 1.12 x .
To learn more about Electric current refer,
brainly.com/question/9467901
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