Resistance of our body is given as
voltage applied across the body is
now by ohm's law current pass through our body is given by
So current from our body will be 4 * 10^-3 A
Glass does not transmit ultraviolet radiation. Suggest what happens to ultraviolet radiation when it is incident on glass. (1 ma
1 answer:
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Answer:
1020.4kg/m³
35m³
Explanation:
Given parameters:
Depth = 0.5m
Pressure exerted = 5000N/m²
Unknown = density of the liquid = ?
Solution:
To find the density of this unknown liquid, we use the expression below:
Pressure of liquid = density x height x acceleration due to gravity
5000 = density x 0.5 x 9.8
Density = 1020.4kg/m³
B.
Density of water = 1000kg/m³
Mass of water = 35000kg
Unknown:
Volume of water = ?
Solution:
The volume of water can be derived from the expression below:
Volume =
Volume = = 35m³
The comparison indicates that the gravitational force is a much weaker force than the electromagnetic force. This is the significance of the fact that the gravitational constant, G, is a very small number and that Coulomb’s constant, k, is a very large number
Answer: The comparison indicates that the gravitational force is a much weaker force than the electromagnetic force.
<u>Explanation: </u>
We know that the universal formula for the estimation of gravitational force is,
Where,
F, Gravitational force, - objects masses r- The relative distance between the two objects
G, Gravitational Constant
And, the electrostatic force between two scalar charges according to the Coulomb’s law is,
F, Electrostatic force between two charges,- Two scalar charges, r - The relative distance between two scalar charges, k- Coulomb’s constant
Now, on comparing the values of G and k, we can easily evaluate that eventually, the gravitational force will be lesser than the coulomb’s force.
Besides this, we can also judge this fact through various examples such as, a balloon rubbed with a cloth, easily sticks to the wall for some time. Opposing the gravitational force of the Earth which is not the case with the normal balloon.
It drops without having the electrostatic force between the wall and the balloon. This shows that the gravitational force draws lesser impact on objects as compared to the electrostatic force.