Answer:
If we are looking for evidence of something that exists outside of our visible Universe and leaves no trace within it, it seems that the idea of a Multiverse is fundamentally untestable. But there are all sorts of things that we cannot observe that we know must be true. Decades before we directly detected gravitational waves, we knew that they must exist, because we observed their effects.
Explanation:
Maybe helps lol
No B. its false<span> they do not. Lyphnodes are a permant part of the body and you have them in your Neck</span>
Answer : 2446 years.
Explanation :
Length of semi major axis is,
According to Kepler's third law, square of time period of an orbit is directly proportional to the cube of the semi major axis.
i.e
where G is gravitational constant
M is mass of sun,
So,
since,
So, orbital period is approximately 2446 years.
Answer:
1281.4 J
Explanation:
F = 298 N
d = 4.3 m
the work done is defined as the product of force applied in the direction of displacement and the displacement.
W = force x displacement
Work is a scalar quantity and its SI unit is Joule.
W = F x d
W = 298 x 4.3 = 1281.4 J
Answer:
PH scale
Explanation:
PH scale helps measure the acidity or the basisity of a solution where 7 is neutral solutions, above 7 is basic solutions, below 7 is acidic solutions.