Answer: Option (D) is the correct answer.
Explanation:
Need means necessity without which a person might not be able to survive for long.
For example, food is a need for every living being as without it any individual cannot survive for a long period of time.
Similraly, shelter is also a need and insurance is also necessary as it protects an individuals life or his savings so that after his death the future of his family remains protected.
Whereas cable TV is not a need as an individual can survive without it. Therefore, a cable TV is a want.
Answer:
Explanation:
Power is defined as the rate at which energy is dissipated.
Its mathematical form is given by :
P = VI
Where
V is voltage and I is current
Using Ohm's law :
, R is resistance
Joule's law equation is given by :
Hence, the correct option is (d).
Question:
how many significant figures are in the measurement 0.0056 ke?
a. four
b. two
c. five
d. three
answer:
b. two
Answer:
Difussion
Explanation:
Diffusion is the result of a totally random phenomenon in which the molecules of a fluid come and go between two vessels that can be connected by a pipe. These molecules travel in a single direction, where the solute is more concentrated to where it is more diluted.
This movement of particles will be modified according to the length or area of the pipe and the concentration of solute. The greater the difference in solute concentration along the tube, the greater the diffusion
Answer:
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