Answer:
A
Explanation:
According to Newton's second law, acceleration is directly proportional to the net force. As the acceleration increases (when mass is constant), the net force increases. This is represented in the following formula.


a = acceleration
f = force
m = mass
The water pressure is greatest at point B which has a larger diameter in this scenario.
<h3>What is Pressure?</h3>
This is defined as the force per unit area of a substance with its unit being Pascal.
The larger diameter will have more force acting on the sides which translates to a greater pressure.
Read more about Pressure here brainly.com/question/25736513
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An electromagnet is a type of magnet in which the magnetic field is produced using the current. The simplest form of an electromagnet is a wire wrapped around in a coil.
The strength of magnetic field of such magnet is given with this equation:

Where N is the number of loops in the coil, I is the strength of the current flowing through the coil, L is the length of the coil, and

is <span>permeability of the electromagnet core material.
From this equation, we can see that increasing both the current and number of loops will increase the strength of the magnet.
Both BLANKS should be
Increase. When you use the additional battery you will have more voltage and more voltage means more electricity.</span>
Answer:

Explanation:
We are given that

Distance between the wires,
1mm=
Length of other wire,l=0.3 m
Length of one wire is infinite.
We have to find the magnitude of force between the two wires.
We know that magnetic force

Where 


When the wires carrying equal current in opposite direction then the force between two wires repel to each other.
The gravitational potential energy U is defined as the product of mass m, the acceleration of gravity g and the height of object h.

We do not have the mass of the hiker. But we know that its W weight is:

Where

So:
.
So:

J
The hiker has gained 30,000 J of energy