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UkoKoshka [18]
3 years ago
10

A given atom has 3 protons, 4 neutrons, and 3 electrons. Describe how you can use those three values to describe the structure,

charge, and mass of the atom.
Physics
2 answers:
pogonyaev3 years ago
5 0
<span>The atomic number of a neutral atom is equal to the number of protons and the number of electrons of the atom. The atomic weight meanwhile is equal to the sum of the number of protons and number of neutrons. In this case, the atomic number of the atom is 3 and the atomic mass is 7. Hence the element is Lithium, a metal </span>
lilavasa [31]3 years ago
3 0

Answer and Explanation;

Structure; the nucleus has 3 protons and 4 neutrons, while the energy levels or the orbitals have 3 electrons. The identity atom is lithium atom (3 protons and three electrons) with an electron configuration of 1s^2 2s.

Charge; the atom has zero charge; it is neutral because the number of protons is equal to the number of electrons.

Its atomic number is 3; since atomic number is the number of protons in the nucleus of an atom (3 protons).

It has a mass number of 7; mass number is the sum of neutrons and protons in the nucleus of an atom ( 3 protons + 4 neutrons).

Atoms contain three sub-atomic particles called protons, neutrons and electrons. The protons and neutrons are found in the nucleus at the center of the atom. The nucleus is very much smaller than the atom as a whole. The electrons are arranged in shells around the nucleus.

In a neutral atom the number of electrons in an atom is always the same as the number of protons (protons = electrons).

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You blow across the open mouth of an empty test tube and produce the fundamental standing wave of the air column inside the test
emmasim [6.3K]

Answer:

(a) Frequency of the standing wave is 614.28 Hz.

(b) Frequency of the standing waves is 1228.56 Hz.

Explanation:

Frequency of standing wave in the case of one end open and other end closed of pipe (also known as stopped pipe) is given by the relation :

f_{n} =n\frac{v}{4L}     .....(1)

Here f_{n} is the frequency of nth harmonic, v is speed of wave, L is length of the pipe and n is the harmonic which only takes values 1,3,5.. and so on.

(a) Given :

Speed of sound in air, v = 344 m/s

Length of tube, L = 14 cm = 0.14 m

n = 1

Substitute these values in equation (1).

f_{1} =1\times\frac{344}{4\times0.14}

<em>f₁ = </em>614.28 Hz

(b) In this case, half of the tube is filled with water. So,

Length of tube having air, L = (0.14)/2 = 0.07 m

Substitute the suitable values in equation (1).

f_{1} =1\times\frac{344}{4\times0.07}

<em>f₁ = </em>1228.56 Hz

7 0
3 years ago
A ball with a mass of 3 kg moving at 5 m/s collides with a 9 kg ball at rest. After the collision, the impacting (3 kg) ball bou
Andru [333]

Answer:

The second ball moves with 0.83 m/s forward.

Explanation:

Given;

mass of the first ball, m₁ = 3 kg

initial velocity of the first ball, u₁ = 5 m/s

final velocity of the first ball, v₁ = 2.5 m/s

mass of the second ball, m₂ = 9kg

initial velocity of the second ball, u₂ = 0

final velocity of the second ball, v₂ = ?

From the principle of conservation of linear momentum;

m₁u₁ + m₂u₂ = m₁v₁ + m₂v₂

(3x5) + (9x0) = (3x2.5) + (9v₂)

15 = 7.5 + 9v₂

15 - 7.5 = 9v₂

9v₂ = 7.5

v₂ = 7.5/9

v₂ = 0.83 m/s

The second ball moves with 0.83 m/s forward.

6 0
4 years ago
How is budgeting different for most states than for the federal government?
meriva

There are three general kinds of state balanced budget requirements:

<span>The governor's proposed budget must be balanced (43 states and Puerto Rico).The budget the legislature passes must be balanced (39 states and Puerto Rico).<span>The budget must be balanced at the end of a fiscal year or biennium, so that no deficit can be carried forward (37 states and Puerto Rico).
</span></span><span>Nature of state balanced-budget requirements All the states except Vermont have a legal requirement of a balanced budget. Some are constitutional, some are statutory, and some have been derived by judicial decision from constitutional provisions about state indebtedness that do not, on their face, call for a balanced budget. The General Accounting Office has commented that "some balanced budget requirements are based on interpretations of state constitutions and statutes rather than on an explicit statement that the state must have a balanced budget."

hope that helped, please mark me as brainliest

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5 0
3 years ago
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Andrew [12]
Speed of the object !!!!
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Amiraneli [1.4K]

Answer:

KE+PE

Explanation:

4 0
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