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andre [41]
3 years ago
6

Can someone please explain if light relates to the particle model and how it does or does not?

Physics
1 answer:
uranmaximum [27]3 years ago
6 0
Wave-particle duality, Light consist of particles and waves. With light as particles, If we have a double slit and you send particles throuh the slit one by one, you will see single particles appearing on the screen, they are random but as time goes, they form a wave-like pattern where there are brighter columns and dimmer columns.
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One of two nonconducting spherical shells of radius a carries a charge Q uniformly distributed over its surface, the other carri
lisabon 2012 [21]

Answer:

Explanation:

A ) The spheres are non conducting , charge will not move on the surface so neutralization of charge by + ve and - ve charge is not possible. Charges will remain intact on them . The electric field inside them will be zero . Electric field outside shell  will not be spherically symmetrical . Lines of force will emanate from the surface of positively charged shell  outwardly oriented  and end at negatively charged shell .

B )

distance between the centres of spherical shell

= 2 a

potential energy of charges

= k q₁ x q₂ / R

= k x - Q x Q / ( 2a )

= - k Q²/ 2a

So work needed to separate them to infinity will be equal to

= k Q²/ 2a

6 0
3 years ago
A radioactive isotope of potassium has a half-life of 20 minutes if a 40 g sample of this isotope is allowed to decay for 80 min
FinnZ [79.3K]

There will be 2.5g left.


Explanation:

80/20 = 4 half lives

40/2 = 20

20/2 = 10

10/2=5

5/2 = 2.5


5 0
3 years ago
A 0.45 kg football traveling at a speed of 22 m/s is caught by a stationary receiver. If the football comes to a rest in the rec
joja [24]

Answer:

0.9Ns

Explanation:

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Impulse = Ft = m(v-u)

Impulse = m(v-u)

m is the mass of football = 0.45kg

v is the final velocity = 22m/s

u is the initial velocity = 0m/s

Impulse = 0.45(22-0)

Impulse = 0.45 * 22

Impulse =  0.9Ns

Hence the magnitude of the impulse imparted to the receiver by the ball is 0.9Ns

4 0
3 years ago
What can scan tiny details inside the human body by using principles of electromagnetism.
bija089 [108]

Answer:

magnetic resonance imaging (MRI)

6 0
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Which word describes the amount of matter an object contains?
notka56 [123]

Answer: Mass is the correct answer. Explanation: As mass is defined as the amount of matter contained in the substances or an object.

8 0
3 years ago
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