Electromagnets have certain advantages over permanent magnets. One of the major advantage is, the amount of electric current can easily be controlled, in turn, magnetic field can be controlled. Out of all the options, option D would be the best answer.
In short, Your Answer would be option D) Electromagnets can easily be turned on and off.
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If it is s-t graph , point is c
if it is v-t graph , point is e
The answer is number 2 stomata.
Answer:
The length of an edge of each small cube is 3.43 nm.
Explanation:
Given that,
Temperature of ideal gas =27.0°C
Pressure = 1.00 atm
We need to calculate the length of an edge of each small cube
Using gas equation



For, N = 1
Where,
N = number of molecule
k = Boltzmann constant
T = temperature
P= pressure
Put the value into the formula


Now, for the cube





Hence, The length of an edge of each small cube is 3.43 nm.
Answer:
Hubble's Discovery
cosmic microwave background radiation