if a theory can be verified by an experiment ten it's a good theory. if an expt contradicts a theory, theory is wrong.
at CERN in europe, a new fundamental particle was said to be found.
Professor Peter Higgs had a theory predicting it.
called the "higgs boson" he got a nobel prze for the boson.
a partcle of light = a photom = a boson ...
The answer is A.
p=m/v
p= 240/60
p= 4 g/cm^3
The answer fam is <span>stratosphere,Thermosphere,mesosphere </span>
<span>This phenomenon is known as illusion of attention and sometimes can include inattentional blindness. Basically, as humans, we are not used to backgrounds and people suddenly changing so our brains are not thinking to look for it.</span>
Answer:
( About ) 6.8nC
Explanation:
We are given the equation |Q2| = mgd^2 / kQ1. Let us substitute known values into this equation, but first list the given,
Charge Q2 = +45nC = (45 × 10⁻⁹) C
mass of charge Q2 = 4.5 μg, force of gravity = 4.5 μg × 9.8 m/s² = ( 4.41 × 10^-5 ) N,
Distance between charges = 25 cm = 0.25 m,
k = Coulomb's constant = 9 × 10^9
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And of course, we have to solve for the magnitude of Q2, represented by the charge magnitude of the charge on Q2 -
(4.41 × 10^-5) = [(9.0 × 10⁹) × (45 × 10⁻⁹) × Q₂] / 0.25²
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Solution = ( About ) 6.8nC