Answer:
When a switch is closed, electrons move through a circuit from the negative side of a battery to the positive side
Explanation:
Note that current is marked to flow from positive to negative on circuit diagrams, but that's for historical reasons only. Benjamin Franklin did a fabulous job of understanding what was going on, but no one yet knew about protons & electrons, so he assumed current was flowing from positive to negative.
However, what really happens is electrons flow from negative (where they repel each other) to positive (where they are attracted).
As electrons flow through a circuit, they need 'something to do'. In many cases, that something is to light a bulb or heat an element, such as an element on a stove. So, the energy of an electron can be converted to heat or light.
I hope I'm understanding your question correctly
Hey there! :D
Force is energy or strength that as the characteristic of movement or physical action.
A push or pull is a force. It moves something physically. If I was going to push a door for it to open, I would physically be moving it.
Inertia is a common tendency to remain unchanged or do nothing. If you are not doing anything, you are not applying force or movement to anything. This would not be the correct answer. We can eliminate "C" and "E"
Since a push and pull both are a force, then "D" is the answer. They both are.
I hope this helps!
~kaikers
Before answering this question first we have to understand temperature and thermal energy.
Thermal energy of a substance is defined as the sum total of kinetic ,potential etc. energy of the substance. When two bodies come in contact with each other,the part of the thermal energy is transferred from hotter body to the cooler one which is called heat.
Temperature is the physical quantity which gives the direction of heat flow and determines whether two thermodynamic systems are in thermal equilibrium or not. Temperature of a thermodynamic system is a measure of average kinetic energy of that system.
If two systems have same average kinetic energy,then two systems must have same temperature.The temperature of a substance increases or decreases due to the change in average kinetic energy.
As per the question the two glasses have same thermal energy.It is told that the two glasses must have same temperature which is wrong.It is because thermal energy does not mean the average kinetic energy of the glass. Kinetic energy is a part of thermal energy.
Hence two glasses may be at different temperature depending on their average kinetic energy.
If you look at the units of density, g/cm^3 you will see it's grams divided by volume (cm^3).
218.9 g / (0.5*1.55*25 cm^3) = 11.3 g/cm^3
Answer:
Explanation:
we know that acceleration =Δv/t
Δv=vf-vi
Δv=1.0-5.5=-4.5
now
a=-4.5/3.0
a= -1.5m/s²
