The question is very poor.
The answer it's fishing for is choice (b), but the only way to know that is
to observe that the others are even worse, and totally from outer space.
This is a Physics question, for heaven's sake. Real science is built on
measurements, and nothing gets done by operating with quantities like
a "small" change in mass, or a "great deal" of energy. This question
causes me to shiver with indignation.
Ok let me help you with this:
<span>
!n case a) Line both up head-to-tail in a straight line... that's the only way to get a sum 2F. In case b) sqrt(2) is the length of the hypotenuse in a 45 degree triangle, so the vectors must be at 90 degrees to each other
in the case of c) lined up head to tail, the only way to get 0 is if they point in opposite direction</span>
+14-17+16-28 = -17+16-14 = -1-14=-15 ... west, and out of breath
Answer:
Silage can be made by one or more of the following methods: placing cut green vegetation in a silo or pit; piling the vegetation in a large heap and compressing it down so as to purge as much oxygen as possible, then covering it with a plastic sheet; or by wrapping large round bales tightly in plastic film.
Explanation:
Answer:
diameter = 9.951 × 
m
Explanation:
given data
NA = 0.1
refractive index = 1.465
wavelength = 1.3 μm
to find out
What is the largest core diameter for which the fiber remains single-mode
solution
we know that for single mode v number is
V ≤ 2.405
and v = 
here r is radius
so we can say
= 2.405
put here value
= 2.405
solve it we get r
r = 4.975979 × 
m
so diameter is = 2 × 4.975979 × m
diameter = 9.951 × m
