3 years ago

PLZ HELP MEEEEEEEEE ASAP

Physics

1 answer:

mafiozo [28]3 years ago

6 0

The answer is “Impulse acting on it” according to the impulse-momentum theorem.

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In one of the classic nuclear physics experiments at the beginning of the 20th century, an alpha particle was accelerated toward

anygoal [31]

Answer:

$3.95 \times 10^{-14}m$

Explanation:

We are given that

Charged on alpha particle=q=2e= $2\times 1.6\times 10^{-19} C$

Where $e=1.6\times 10^{-19} C$

Initial kinetic energy=K.E=5.76 MeV= $5.76\times 10^6\times 1.6\times 10^{-9} C$

$1 Me V=10^6\times 1.6\times 10^{-19} V$

Z=79

Charge on protons= $q'=79\times 1.6\times 10^{-19} C$

We have to find the closeness of alpha particle to the gold nucleus before being turned around.

Initial kinetic energy=Final potential energy

$5.76\times 10^6\times 1.6\times 10^{-9}=\frac{Kq_1q_2}{r}$

Where $k=9\times 10^9$

$r=\frac{9\times 10^9\times 79\times 1.6\times 10^{-19}\times 2\times 1.6\times 10^{-19}}{5.76\times 10^6\times 1.6\times 10^{-9}}$

$r=3.95\times 10^{-14}m$

7 0

3 years ago

According to Galileo, this quantity is not needed to keep a body in motion under ideal conditions.

Sergio [31]

This condition is called Galileo's Law of Inertia which states that all bodies accelerate at the smart rate , no matter what are their masses or size. Inertia is that tendency of matter to resist changes in its velocity. <span>Isaac Newton's first law of motion captures the concept of inertia. </span>

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3 years ago

Read 2 more answers

Which of the following is not a region of the brain?

lorasvet [3.4K]

Definitely the last one, brain stem

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3 years ago

A difference in electric potential is commonly known as voltage, and is provided by standard batteries. If you built two identic

Lapatulllka [165]

Answer:

higher

Explanation:

A bigger voltage will result in a faster movement of charge.

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4 years ago

Please show work with the answer and thank you

Alika [10]

Answer:

its your homework

Explanation:

you aren't getting any free answers out of me because it sounds like your trying to be smart your welcome

(Not smarter than me)

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3 years ago