The answer is A ..........
Answer:
Explanation:
Given:
mass of first particle,
mass of second particle,
mass of third particle,
coordinate position of first particle in meters,
coordinate position of second particle in meters,
coordinate position of third particle in meters,
<u>Now, gravitational force on particle 3 due to particle 1:</u>
towards positive Y axis.
<u>gravitational force on particle 3 due to particle 2:</u>
towards positive X axis.
<u>Now the net force</u>
<em>For angle in counterclockwise direction from the +x-axis</em>
Answer:
P = VI = (IR)I = I2R
Explanation:
What the equation means is that if you double the current you end up with 4 times the power loss. It's like the area of carpet you need for a room - if you make the room twice as long and twice as wide you need 4x as much carpet. The physical explanation is that the voltage difference along a wire depends on the current - more current flowing with a resistance means more voltage (pressure of electricity if you like) is built up.
This extra voltage means more power. So if you double the current your would double the power, but you also double the voltage which doubles the power again = 4x as much power. P = VI = (IR)I = I2R
I hope this helps you out, if I'm wrong, just tell me.
For this case, the switch is located at point B of the diagram.
Remember that point D is the universal symbol for resistance.
In A what you have is a source of power and in C what you have is a cable.
Therefore, the answer for this case is B.