Answer:
B it decreases
Explanation:
the movement of a positive test charge in the direction of an electric field would be like a mass falling downward within Earth's gravitational field. Both movements would be like going with nature and would occur without the need of work by an external force. This motion would result in the loss of potential energy
The work done is 8427 J while the energy expended is 80.25 W.
<h3>What is work done?</h3>
Work done is defined as the product of the force and the distance. We know that the work done in a gravitational field is given as;
W = mgh
Total mass of the water bucket and chain = 13.9 kg + 19.3 kg = 33.2Kg
Distance covered = 25.9 m
W = 33.2Kg * 9.8 m/s^2 * 25.9 m
W = 8427 J
Recall that the work done = Energy expended
Power = Energy expended/ Time
Power = 8427 J/ 1.75 * 60 seconds
Power = 80.25 W
Learn more about work and energy:brainly.com/question/17290830
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Answer:
For a plant cell: The cell wall and the cell membrane
For animal cells: Just the cell membrane
I’d need to know which direction team a is pulling in and which direction b is pulling in to determine which direction.
But the net force is 125N in B’s direction (since B’s force is stronger than A’s by 125N)
Answer:
The net force on the block is 19.40 N.
Explanation:
Given that,
Coefficient of static friction = 0.4500
Coefficient of kinetic friction = 0.1500
Mass of block = 4.400 kg
We need to calculate the net force required to make the block slide
Put the value into the formula
Hence, The net force on the block is 19.40 N.