Answer:
We would have to locate the charge at the center of the triangle.
Explanation:
I tried my best to make geometric arguments, you can see the attached picture if it helps.
Let's say the triangle has three corners names 1, 2 and 3 as seen in the image. Let's determine the electric field at the center of the triangle. We can see that the x-component of electric field produced by the charge at 1 and the one produce by the charge at 2 will cancel each other out because they have the same but opposite values. The y components on the other hand are equal and are added. The magnitude of all three electric fields are the same (because each corner is at equal distance from the center and all three charges are equal, see the formula for the electric field: 
where 
is the distance between the point of observation and the charge). Thus lets call E the magnitude of the electric field produced by any of the charges.
We can clearly see that the y-component of the electric filed produced by 1 is 
, the same goes for the one produced by the charge at 2, knowing that 
, we have that the total field due to the charges at 1 and 2 are equal to E in the positive y-direction. The field produced by the third charge is clearly -E in the negative y-direction thus canceling the contribution from 1 and 2. The total electric field at the center of the triangle is zero, this also mean that any charge placed at that point will not feel any force.
Answer:
1/60 mps
Explanation:
We would first have to divide 60 by 60 because there is 60mins per hour to get 1mpm. After that we would have to divide 1 by 60 because there are 60 secs in a min. So our final answer after doing 1/60 would be a fraction.
Answer:
Explanation:
The correct answer is option C.
When the battery is operating a remote control toy the energy is converted from potential energy to the kinetic energy.
A battery stores electrical potential from the chemical reaction.
When the circuit is connected to the potential energy of the battery helps in the movement of the toy.
The energy produced by the movement of the control toy is kinetic energy.
Hence, we can say that Potential energy is changed to kinetic energy
Here I advice doing thought experiment and not remembering equations. By doing thought experiment you will write down equation by yourself.
Doing some work on a system means that system will "absorb" that energy. Here, system absorbs 1000J of energy. Now you are cooling system down by removing 500J of energy. That means that system will lose 500J of energy
All of that can be written as 1000 - 500 = 500 which means that after cooling your system has 500J left.
Heat is measured in joules and temperature is measured in F degrees or C degrees.
