construct an analogy between a pond/pump system with a water fall (gravitational potential) and a circuit with a battery with se
1 answer:
Explanation:
<u>Pond </u><u> Battery</u>
In the two systems, pond acts as water reservoir while battery acts as reservoir in the electrical system.
<u>Water </u><u> charges</u>
In the pond system the water acts as the main constituent of flow of energy and in electrical system the charges act as the constituent of flow of energy.
<u>Gravitational potential </u><u> Electric Potential</u>
We have the gravitational potential of the stored water in the pond with respect to the destination which leads to the flow of water whereas the electrical system has the potential difference leading to the flow of charges.
<u>Pipe line </u><u> Conducting wire</u>
The channel through which the water flows is pipe whereas the path through which the charges flow is conductor.
<u>Tap </u><u> light bulbs</u>
Output of the pond system is obtained at the taps whereas the output of the electrical system is obtained at the light bulbs.
<u>Drag, viscosity, surface friction </u><u> electrical resistance</u>
The resistance to the flow of water can be regarded as drag, mechanical friction and viscosity while the electrical resistance is due to the bonded electrons.
<u>volume flow rate </u><u> current flow</u>
The rate of flow of water is known as the volume flow rate whereas the rate of flow of charges is called current.
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The conservation of energy and Newton's second law allows us to find the results about Jason's falling motion are;
- The energy when reaching the water is K = 13720 J
- The average force of the water to stop it is: F = 2744 N
The conservation of energy is one of the most important principles of physics, stable that if there is no friction force, mechanical energy is conserved at all points.
Mechanical energy is the sum of kinetic energy plus potential energy.
Let's look for the energy at two points
Starting point. Get higher.
Em₀ = U = 13720 J
Final point. Lower down.
= K
Friction in the air is negligible, so energy is conserved.
K = 13720J
<h3>Kinematics and Newton's law.</h3><h3> </h3>
They indicate that it stops 5m under the water, if we assume that the water acts with a constant force, we can use kinematics and Newton's second law to find this force.
The kinematics expression to find the acceleration is
v² =v₀² – 2ay
When it stops the speed is zero.
Newton's second law is:
F = ma
F = m ( )
The expression for the kinetic energy is:
K = ½ m v₀²
Let's substitute.
F =
Let's calculate.
F=
F = 2744N
In conclusion using conservation of energy and Newton's second law we can find the results about Jason's falling motion are;
- The energy when reaching the water is K = 13720 J
- The average force of the water to stop it is: F = 2744 N
Learn more about energy here: brainly.com/question/14274074
The period of the musical note is seconds.
Answer: Option A
<u>Explanation:</u>
The frequency is defined as the number of oscillations or a complete cycle of wave occurred in a given time interval. So the frequency is inversely proportional to the time period. Thus the mathematical representation of frequency with time period is
As the frequency is given as , the time period can be found as
Thus,
Thus the time period for the frequency of the musical note is seconds.