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Kobotan [32]
4 years ago
14

What simple machines would move or turn an object?

Physics
1 answer:
Vsevolod [243]4 years ago
5 0
Its a lever If I'm not mistaking
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19) According to the Heisenberg Uncertainty Principle A) an electron can never appear in the exact same position twice. B) elect
vredina [299]

Answer:D

Explanation:

Heisenberg’s uncertainty principle in quantum physics by German physicist Werner Heisenberg in 1927 states that the more accurately the velocity of an object (electron) is determined , the less accurate the position of the object is known and vice versa. The principle talks about how difficult it is to determine the precision of two related parameters.

8 0
3 years ago
Read 2 more answers
Explain why white light splits up into the different colours when it goes through a prism
Paladinen [302]

Explanation:

beacuse light is mixture of many different colours,each with different frequency

7 0
3 years ago
A change in ________ results in ________.
Triss [41]
I think it's C. I may be wrong, tho
3 0
3 years ago
Neutrons incident on a heavy nucleus with spin J 0 show a resonance at an incident energy ER = 250 eV in the total cross-section
ivolga24 [154]

Answer:

elastic partial width is 2.49 eV

Explanation:

given data

ER  E = 250 eV

spin J = 0

cross-section magnitude σ = 1300 barns

peak P = 20ev

to find out

elastic partial width W

solution

we know here that

σ = λ²× W /  ( E × π × P )     ...................1

put here all value

σ = (0.286)² × W  × 10^{-16}/  ( 250 × π × 20 )

1300 × 10^{-24} = (0.286)² × W  × 10^{-16}/  ( 250 × π × 20 )

solve it and we get W

W = 249.56 × 10^{-2}

so elastic partial width is 2.49 eV

8 0
4 years ago
A penny rides on top of a piston as it undergoes vertical simple harmonic motion with an amplitude of 4.0cm. If the frequency is
nadezda [96]

Answer:

in the downward movement of the movement when the constant is lost

Explanation:

When the coin is on the piston it has a relationship given by

       a = d²x / dt²

the piston position is

      x = A cos wt

      a = - A w² cos wt

the maximum acceleration is

     a = - A w²

When the piston raises the acceleration of gravity and that of the piston go in the same direction, when the piston descends they relate it is contrary to gravity, therefore when the frequency increases, the point where the acceleration of the piston is greater than gravity arrives and the coin loses contact.

The point where you lose contact is

      a = g

      g = A w²

In short, in the downward movement of the movement when the constant is lost

7 0
3 years ago
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