Decrease the amount of work done.
Momentum is a product of mass and the velocity thus the momentum will be 5100*12 = 61200 kgm/s
Answer:
This is due to bending of light ray passing through the medium.
Explanation:
This can be explained using the concept of refraction.
Refraction can be defined as the bending of light ray as it travels from one medium to another (it can be from the less dense to denser medium or denser to less dense medium)
For that of pencil in water, light ray travels from less dense medium(surrounding air) to denser medium(water). This causes the pencil to bend away from the normal rather than towards the normal (angle of refraction being greater than angle of incidence) and hence the reason for the bending.
NB: Normal line is perpendicular to the plane between the medium.
The total resistance in the circuit, R is 4 Ω .
The meters connected to the 12 Ω resistance are:
- Voltmeter - connected in parallel
- Ammeter - connected in series
If the switch is opened, only the 4 Ω and 2 Ω resistances will stop working.
<h3>What is the equivalent or total resistance in the circuit?</h3>
The resistances in the circuit are connected both in series and in parallel
The resistances in series are the 4 Ω and the 2 Ω resistances.
Equivalent resistance = 4 + 2 = 6 Ω
The 4 Ω and the 2 Ω resistances are then connected in parallel with the 12 Ω resistance.
Total resistance, R is calculated as follows:
1/R = 1/12 + 1/6
1/R = 3/12
R = 12/3
R = 4Ω
The meters connected to the 12 Ω resistance are:
- Voltmeter - connected in parallel
- Ammeter - connected in series
If the switch is opened, only the 4 Ω and 2 Ω resistances will stop working because the circuit connecting them to the cell is broken whereas the circuit to the 12 Ω resistance is continuous.
In conclusion, resistances can be connected in parallel or in series.
Learn more about resistance in series and in parallel at: brainly.com/question/2980867
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