C! MOON'S gravity. i got this one right
There is a significant difference between parfocal objectives and objectives that are not. Having parfocal objectives means that the sample remains in focus when the objectives are changed.
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The most significant characteristic of parfocal objectives is that the image or sample under observation remains focused even when changing objectives.
When you are focussing a sample using a low-power objective and want to change to a higher one, you do not need to refocus anymore. And if you do, the adjustment is minimal. The focus keeps being the same because the distance between the image and the lens remains the same.
This characteristic turns to be convenient because
- <em>it avoids spending time focusing, </em>
- <em>it prevents contact between the lens and the coverslip. </em>
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Related link: brainly.com/question/2475359?referrer=searchResults
Answer:
AGU-CUA
Explanation:
An mRNA sequence is made using a DNA sequence as a template. The sequence is dictated by complementary base pairing.
DNA uses the bases A, T, C and G. A is complementary to T and G is complementary to C.
RNA uses the bases A, U, C and G. A is complementary to U and G is complementary to C.
When transcribing DNA to RNA:
- C is paired with G
- G is paired with C
- A is paired with U
- T is paired with A
Therefore, TCA-GAT is transcribed to AGU-CUA
Light speed, or 300,000 kilometers a second, might seem like a speed
limit, but this is just an example of 3 + 1 thinking – where we still
haven’t got our heads around the concept of four dimensional space-time
and hence we think in terms of space having three dimensions and think
of time as something different.
For example, while it seems to us
that it takes a light beam 4.3 years to go from Earth to the Alpha
Centauri system, if you were to hop on a spacecraft going at 99.999 per
cent of the speed of light you would get there in a matter of days,
hours or even minutes – depending on just how many .99s you add on to
that proportion of light speed.
This is because, as you keep
pumping the accelerator of your imaginary star drive system, time
dilation will become increasingly more pronounced and you will keep
getting to your destination that much quicker. With enough .999s you
could cross the universe within your lifetime – even though someone you
left behind would still only see you moving away at a tiny bit less than
300,000 kilometres a second. So, what might seem like a speed limit at
first glance isn’t really a limit at all.
To try and comprehend
the four dimensional perspective on this, consider that it’s impossible
to move across any distance without also moving through time. For
example, walking a kilometer may be a duration of thirty minutes – but
if you run, it might only take fifteen minutes.
Read more at: <span>https://phys.org/news/2011-10-light-speed.html#jC</span>
When a client cannot read or write but is of sound mind, the nurse should read the informed consent to the client in the presence of two witnesses and the client should put X on signature line.
Informed consent is an agreement by a client to accept the treatments or procedures after being provided complete information about it (benefits and risks of treatments, alternatives and prognosis). So, if the client cannot read and write, it is important to inform him with capacity and competence to understand. The client never should feel coerced.