Answer:
Spot B & Spot C
Explanation:
They're closer to the equator and get more direct solar radiation, making them more likely to be where a warm air mass would form.
R = 2700 ohm
I = 2.4 mA = 2.4 × 10^(-3) A
I = Q/t
Q = I × t = 2.4 × 10^(-3) × 15 s = 36 C
Answer:Due to the pressure difference created by rotating fans.
Explanation:
In most of the vacuum cleaners, there is an area which is of disc shape and it is in right next to the motor. There are several fans within the disc that spin at a very high velocity.
The blades will push the air outside of the disk.There is no air in inside of the disc and air pressure creates which pushes air inside the disk to replace the missing air.
So motor is pushing the air outside and to maintain this pressure the air is pushing toward inside with dirt.
Answer:
Once the fridge is moving you are still applying the same push force but now the opposing friction (now kinetic) force is less.
Answer:

Explanation:
The question: What is the net force exerted by these two charges on a third charge q_3 = 47.0 nC placed between q_1 and q_2 at x_3 = -1.240 mm ?
<u>Your answer may be positive or negative, depending on the direction of the force.</u>
Solution:
The coulomb force is given by the equation

where
is the separation between the charges
and
.
Now, in our case



The separation between charges
and
is

Therefore, the force between them is

and it is directed in the negative x-direction.
The separation between charges
and
is

therefore, the force between them is

Therefore the total force on charge
is
