1. Atomic Mass - protons + neutrons in the nucleus of an atom
2. Neutron - the neutrally charged element in the nucleus of an atom
3. Atomic Number - the number of protons an atom has
4. Proton - the positive particle in the nucleus of an atom
5. Isotope - an atom of an element that has a different number of neutrons that the standard atom of that element
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Answer:
Explanation:
In interferometer , when the movable mirror is moved away by distance d , there is fringe shift on the screen . If n be number of fringes shifted
2 d = n λ
where λ is wavelength of light
Applying this theory for first case when no of fringes shifted is 146
2 d₁ = 146 x 656.3 nm
d₁ = 47909.9 x 10⁻⁹ m
= .048 x 10⁻³ m
= .048 mm
For second case n = 122
2d₂ = 122 x 434 x 10⁻⁹
d₂ = 26474 x 10⁻⁹ m
= .026 mm
So in the second case , mirror must have been moved towards the beam splitter by .048 - .026 = .022 mm
So movement = - 0 .022 mm ( negative displacement )
Answer: A) 0.19 kg.m/s South just answered it right on Apex!
Explanation:
Answer:
The electromotive force is the voltage measured across the cell terminals when "NO" current is being drawn. That is why electromotive forces are used in Wheatstone Bridges which measure the resistance of an external object.
Just measuring the voltage across a cell does not give one the true EMF because current drawn from the cell will cause a reduction of voltage of I * R where R is the internal resistance of the cell.
This question involves the concepts of Newton's Law of Gravitation and mass.
The force on Procyon A from Procyon B will be "equal" to the force on Procyon B from Procyon A, which has a value of "3.75 x 10²⁶ N".
Applying Newton's Law of Gravitation, we can find the force on Procyon A from Procyon B, which is equal to the force on Procyon B from Procyon A:
where,
F = force = ?
G = universal gravitational constant = 6.67 x 10⁻¹¹ N.m²/kg²
m₁ = mass of Procyon A = 3 x 10³⁰ kg
m₂ = mass of Procyon B = (2.5)(3 x 10³⁰ kg) = 7.5 x 10³⁰ kg
r = distance between them = 2 x 10¹² m
Therefore,
<u>F = 3.75 x 10²⁶ N</u>
Learn more about Newton's Law of Gravitation here:
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