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ser-zykov [4K]
4 years ago
15

Nuclei of uranium atoms split apart is___?

Physics
1 answer:
Lynna [10]4 years ago
4 0
Nuclei of uranium atoms split apart is . . . . <u><em>known as nuclear fission</em></u>
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A very thin oil film (n = 1.25) floats on water (n = 1.33). What is the thinnest film that produces a strong reflection for gree
mixer [17]

Answer:

200 nm is the thinnest film that produces a strong reflection for green light with a wavelength of 500 nm

Explanation:

If two reflected waves interfere constructively ,strong reflection is produced. Two reflected waves will experience a phase change

For constructive interference

2\times n\times t=m\lambda

for thinnest film m=1

refractive index should be taken for film n=1.25

thickness of the thinnest film is

t=\frac{m\lambda}{2n} \\t=\frac{1\times 500}{2\times 1.25} \\t=200 nm

6 0
3 years ago
The displacement ‘x’of a particle is dependent on time ‘t’according to the relation X= 3 -5t +<img src="https://tex.z-dn.net/?f=
rusak2 [61]

Answer:

Explanation:

A.

8 0
3 years ago
Two aluminized optical flats 15 cm in diameter are separated by a gap of 0.04 mm, forming a capacitor. what is the capacitance i
Nikitich [7]

Answer: 3978 pF

Explanation:

Capacitance can be defined as ability to store charge. It is the ratio of charge  over electric potential.

C =\epsilon_o \frac{A}{d}

where, A is the area of the plates and d is the distance between plates forming the capacitor.

diameter of the plates, di = 15 cm =0.15 m

radius of the plate, r = di/2 = 0.075 m

Area of the plates, A = πr² = 0.018 m²

Distance between the plates, d = 0.04 mm = 0.00004 m

Permittivity, ∈₀ = 8.84 × 10⁻¹² F/m

Capacitance, C = 8.84 \times 10^{-12} F/m \times \frac{0.018 m^2}{0.00004 m} = 3978 \times 10^{-12} F = 3978 pF

6 0
3 years ago
Which statement should he place in the region marked X?
Anuta_ua [19.1K]

Explanation:

The answer is Electrons move between objects.

4 0
3 years ago
within a book on a desk, there are billions of forces pushing and pulling on all the molecules. why is it these forces never by
irina [24]
For exactly the same reason that all the molecules of air in the room, each one
moving at a random Gaussian-distributed speed in a random direction, never by
chance all wind up on one side of the room at the same time, leaving you to
suffocate with no air on the side where you are.

By the way, there are not billions of forces pushing and pulling on all the
molecules in the book, but we know what you mean.   

The answer is in the behavior of large numbers of 'randomly distributed' things.
The behavior of any one of them is unpredictable, and completely up to chance
and the tea leaves.  But the laws of Physics that lean on every molecule result
in a definite probability of how large numbers of them will behave. 

The probability of the book levitating off the desk, or all the air in the room
moving to one side, is NOT zero.  There is a definite probability, which can be
calculated, that either of those events will happen.  But the number is so small
that it can safely be assumed to be zero, without significantly changing our
concept of what to expect in our daily life.

It's NOT correct to say that it CAN'T ever happen, but it's totally rational,
reasonable, pragmatic, and practical to live our lives <em>as if</em> it can never happen,
because the probability is so small.  
7 0
3 years ago
Read 2 more answers
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