In a series circuit . . .
There is only one path for current to take.
All the way from one terminal of the power supply, through all of
the lights, computers, vending machines, air conditioners and
everything else in the building, to the other terminal of the electric
supply. One path !
So the current for EVERY device has to flow through ALL of them,
because that's the only path there is.
If any ONE device in the building was turned off, burned out, or
unplugged from the outlet, then there would be NO PATH for the
current, and everything in the building would lose power !
Not a very convenient way to operate a house or a building.
Answer:
D. A 10 kg rock at 15°C
Explanation:
Thermal energy is heat energy, meaning that the hotter rocks will have more energy.
The heavier/larger rocks can store more energy.
So if we combine the largest two variables, we get a 10kg rock at 15°C.
Answer:
Electric field, 
Explanation:
Given that,
Charge, 
We need to find the magnitude of electric field 17.1 cm (0.171 m) above an isolated charge. Electric field at a point is given by :
So, the electric field is 
. Hence, this is the required solution.
Answer: (A) a back-and-forth motion on the surface of the earth
Explanation:
Earthquake generates seismic waves which are longitudinal waves.Longitudinal waves travel parallel in the direction of transfer of energy. Meaning that they travel in back and forth motion.
Longitudinal waves consist of compressions and rarefactions. When compressions occur when particles are close together and are regions of high pressure. Whereas, rarefactions occur when particles are further apart and regions of low pressure.
Here molecules of gas remains constant. If more pressure is applied to the piston, gaseous molecules will come closer to each other. Hence their volume decreases and density increases. Hope this helps you.
