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posledela
4 years ago
12

When positively charged particles were radiated onto a gold atom, a few of the particles bounced back. Which of the following ca

used this?
Positively charged protons in the nucleus of the gold atom

Positively charged electrons in the nucleus of the gold atom

Negatively charged protons around the nucleus of the gold atom

Negatively charged electrons around the nucleus of the gold atom
Physics
2 answers:
ratelena [41]4 years ago
3 0

Positively charged protons in the nucleus of the gold atom .... rutherford scattering ???


Kay [80]4 years ago
3 0

Answer:

Positively charged protons in the nucleus of the gold atom

Explanation:

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What are the main objectives of uno​
Colt1911 [192]

Answer:

The main  objective is to run out of cards.

Explanation:

The game starts by dealing 7 cards to everyone. When someone puts a card the next player has to put a card with the same number or the same color as the last card on the field. There are cards with effects such as: make the next player skip his turn, change the order of putting cards on the field or, make the next player draw 2 cards and skip his turn. If you are don't have the right color or the right number in your hand you can either put one of the black cards (if you have one of them in your hand) which let you change the color on the field (and one of them makes the next player draw 4 cards) or draw one card and skip your turn. When you have 1 card left you have to say "Uno" and when you are out of cards you win.

6 0
3 years ago
Which lists three organic biological molecules?
Nat2105 [25]

Answer:

carbohydrates , minerals - lime coal

5 0
3 years ago
A plant root i an example of ___________
galina1969 [7]

Answer:

The plant root is an example of an organ.

Plant consists of many different organs, which include leaves, stem, reproductive organs, and roots. All the organs play a different role in the plant.

8 0
3 years ago
2. A jack exerts a vertical force of 4.5 X 103
skad [1K]

Correct Question:-

A jack exerts a vertical force of 4.5 × 10³

newtons to raise a car 0.25 meter. How much

work is done by the jack?

\\  \\

Given :-

\star  \sf  \small force = 4.5 \times  {10}^{3}  \: newton

\star  \sf  \small distance = 0.25 \: meter

\\  \\

To find:-

\sf \star \: work = \: ?

\\  \\

Solution:-

we know :-

\bf \dag \boxed{ \rm work = force \times distance}

\\  \\

So:-

\dashrightarrow \sf work = force \times distance

\\  \\

\dashrightarrow \sf work = (4.5 \times 1 {0}^{3} ) \times 0.5 \\

\\  \\

\dashrightarrow \sf work = (4.5 \times 1 {0}^{3} ) \times  \frac{0 \cancel.5}{10}  \\

\\  \\

\dashrightarrow \sf work = (4.5 \times 1 {0}^{3} ) \times  \frac{5}{10}  \\

\\  \\

\dashrightarrow \sf work = (4.5 \times 1 {0}^{3} ) \times  \cancel \frac{5}{10}  \\

\\  \\

\dashrightarrow \sf work =  \dfrac{4\cancel.5}{10}  \times 1 {0}^{3} \times  \dfrac{1}{2} \\

\\  \\

\dashrightarrow \sf work =  \dfrac{45}{10}  \times 1 {0}^{3} \times  \dfrac{1}{2} \\

\\  \\

\dashrightarrow \sf work =  \dfrac{45}{10 {}^{0} }  \times 1 {0}^{3 - 1} \times  \dfrac{1}{2} \\

\\  \\

\dashrightarrow \sf work =  \dfrac{45}{10 {}^{0} }  \times 1 {0}^{2} \times  \dfrac{1}{2} \\

\\  \\

\dashrightarrow \sf work =  \dfrac{45}{1}  \times 1 {0}^{2} \times  \dfrac{1}{2} \\

\\  \\

\dashrightarrow \sf work =  \dfrac{45 \times 10 \times  \cancel{10}}{ \cancel2} \\

\\  \\

\dashrightarrow \sf work =  \dfrac{45 \times 10 \times 5}{ 1} \\

\\  \\

\dashrightarrow \sf work =225 \times 10

\\  \\

\dashrightarrow \bf work =\red{2250\: joule}

5 0
3 years ago
In simple harmonic motion, the acceleration is proportional to In simple harmonic motion, the acceleration is proportional to:__
erik [133]

Answer:

e. all of the above

Explanation:

In simple harmonic motion, the acceleration is given as;

a = -ω²x = -(2πf)²x

a_{max} = -\omega ^2A

where;

ω is the angular velocity

f is the frequency

x is the displacement

A is the amplitude

Thus, In simple harmonic motion, the acceleration is proportional to the amplitude, velocity, frequency, and displacement.

The correct option is E.

"all of the above"

5 0
3 years ago
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