I doubt that the physical properties will be affected, however, the chemical properties will be affected especially reaction rates
Answer:
Explanation:
Work done is defined as the product of force and the displacement in the direction of force.
W = F x d x Cos θ
Where, θ be the angle between force and the displacement.
The force of gravity acts downwards and the displacement is in upward, so the angle is 180. cos 180 = -1 , so the work done by the force of gravity is negative.
The force of rope acting in upwards direction and displacement also in upwards direction.
So, the work done is positive
If there is no current running through a good conductor, it's always because
there is no potential difference between its ends, so the electrons in it have
no incentive to go anywhere. If you want a current to flow, just create a potential
difference (a voltage) between the ends of the conductor. You can do that with
a generator, a battery, a solar cell, or some pieces of metal stuck into a moist
potato. As soon as you do that, those electrons wake up, and they all start trying
to fly away from the negative end of the conductor, toward the positive end.
It is described as a POINT
Answer:
The average global temperatures has increased since 1880 due to the emission of toxic gases in the atmosphere.
Explanation:
- In average the global temperature of the earth has increased by 1 degree Celsius (2 degrees Fahrenheit). It includes the combined land and ocean's temperature.
- The main reason for this increase in global temperature is the emission of gases like carbon dioxide, CFC's and other greenhouse gases.
- Human activities, industrialization, modernization etc. are majorly responsible for this increment in temperature through the centuries.