Answer:
The fulcrum of the metre stick is at the 40 cm mark
100 g * 10 cm = 1000 g-cm clockwise torque
x * 30 cm = 1000 gm-cm = counterclockwise torque for balance
X = 1000 / (40 -10) = 1000 / 30 = 33.3 gm at 10 cm to balance
Answer:
The cell will have no electromotive force in it.
Explanation:
The battery provides the chemical energy that produces the force needed to move electron around the circuit and to generate electrical energy.
- electrochemical cells are devices in which chemical reactions produce electric current.
- The electromotive force inherent in a cell provides the driving force for the current to flow.
- Without this force, there would not be enough energy to move the electrons.
There are two particular cases, the first is when Object A is attracted to the neutral wall. This would indicate that the object is not neutral, as there is an attraction.
At the same time we know that Object A is attracted to an object B. And therefore, the load of A must be opposite to that of B. Remember that opposite charges attract each other. If the charge of object B is positive, then the charge of object A will be negative.
Option B is correct: It has a negative charge.
The average kinetic energy of the gas would also be constant since the temperature of the gas is not changing.
<h3>What happens to the average kinetic energy?</h3>
The kinetic energy is the energy of the particle that is motion. We know that the kinetic energy of the gas is proportional to the temperature of the gas. As the temperature increases, the kinetic energy of the particles of the gas increases.
Now we can see that the gas has been maintained at a constant temperature and a constant volume and that the particles of the gas collide with each other. This implies that the average kinetic energy of the gas would also be constant since the temperature of the gas is not changing.
Learn more about average kinetic energy:brainly.com/question/1599923
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Answer:
Explanation:By using the sunglasses while looking at If your sunglasses are polarized, instead of only seeing the surface of a lake or river, you will suddenly be able to see through the glare and into the water below.
Another one is by comparing two sunglasses, hold your glasses and another one simultaneously and look through both pairs at the same time. Then, rotate one pair of sunglasses about 60 degrees. If both pairs of glasses are polarized, the overlapping area will darken as they filter out excess light. If your pair isn't polarized, however, you won't notice any difference.
Also it can be determined by simple computer test If you rotate your glasses sideways while looking at a computer monitor through polarized glasses, portions of your screen will become blank or go dark. The same also applicable to LCD display screens such as the ones on a gas pump.