work is force x distance = 25 x 0.4
= 2.5x4 = 10joules
pwer would be 10j/2s watts .... 5 watts
I think the correct answer from the choices listed above is option D. Scientists would use a control sample that has no dna from bighead carp in edna surveillance in order to to verify that no dna has contaminated the gel. It would eliminate certain errors in the experiment.
A lewis electron dot diagram (or electron dot diagram) is a representation of the valence electrons of an atom that uses dots around the symbol of the element. the number of dots equals the number of valence electrons in the atom.
They either push or pull and make the object magnetic.
The correct option is A.
An inductor resists a change in the flow of electrons, it usually functions as a low pass filter, this is because, the impedance of an inductor increases as the frequency of a current increases. Thus, an inductor can be placed in series with a motor to provide heat reduction in the motor winding, this is because an inductor tend to resist any change in the amount of current that is flowing through it.
