<span>When two or more identical capacitors (or resistors) are connected
in series across a potential difference, the potential difference divides
equally among them.
For example, if you have nine identical capacitors (or resistors) all
connected end-to-end like elephants in a circus parade, and you
connect the string to a source of 117 volts (either AC or DC), then
you will measure
(117v / 9) = 13 volts
across each unit in the string.</span>
<h3><u>Answer;</u></h3>
C) decreases; increases
<h3><u>Explanation;</u></h3>
- As we move through the visible spectrum, red to violet (right to left in the image), the wavelength <u><em>decreases</em></u> and the frequency <em><u>increases</u></em>.
- <em><u>Electromagnetic spectrum comprises of electromagnetic waves arranged in the order of increasing or decreasing frequency and wavelength.</u></em>
- These electromagnetic waves includes; <em><u>radio waves, microwaves, infrared, visible light, ultraviolet, x-rays and gamma rays. </u></em>
- In electromagnetic spectrum as you move from left to right, <em><u>that is from the radio waves towards the gamma rays, the wavelength decreases as the frequency increases; while from gamma rays towards the radio waves the wavelength increases while the frequency decreases.</u></em>
You are given the mass of the book with an initial
height of 0.77m. You are also given the final height of the book, 2m above the
floor. The problem requires you to find the work done on the book. It is said
that work is equal to force times distance. And that force is equal to mass
times acceleration due to gravity.
W=Fd
W=mgd=mgh
W=(1.7kg)(9.8m/s^2)(2m-0.77m)
W=20.49J
<span>The work is equal to 20.49J.</span>
Answer:
Schrodinger's cat explains that the state of an object is not known until
an observer observes the state - therefor if the cat is in an enclosed box and the probability of some toxic substance escaping is 1/2, the cat is 1/2 dead and 1/2 alive until its actual state is observed by an external observer. An old saying "is the moon really there if no one is looking at it"
<span>Lifting an object increases the gravitational potential energy of the system. If you release the object, that potential energy will be transformed into the energy of an object in motion which is termed as the kinetic energy as it falls toward earth. Hope this helps.</span>