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lorasvet [3.4K]
3 years ago
13

A tau lepton decays into an electron, an electron antineutrino and a tau neutrino. Write out this reaction in symbolic (equation

) form and show that charge and lepton number is conserved. 2. What is the total number of quarks in a helium nucleus consisting of 2 protons and 2 neutrons
Chemistry
1 answer:
Dmitry [639]3 years ago
5 0

Answer:

.

Explanation:

hhidhwvagaue hrurifv3v2vd

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What is the mechanical advantage of a wedge that is 2 inches at its widest part and has sloped side with a length of ten inches?
Artist 52 [7]

Answer:

5

Explanation:

Given parameters:

Width of wedge  = 2inches

Length of sloped side  = 10inches

Unknown:

Mechanical advantage  = ?

Solution:

A wedge is a simple machine used to split devices into two. It is a simple chisel.

The input force is through the width and the output wok done is through the length of the slope.

         

Mechanical advantage is the ratio of the output force to the input force;

           M. A  = \frac{Output force}{Input force }

therefore;

              M.A  = \frac{10inches }{2 inches}  = 5

Mechanical advantage has no unit.

6 0
4 years ago
Which statement accurately represents the arrangement of electrons in bohr’s atomic model?
Alexus [3.1K]

Electrons travel around the nucleus in fixed energy levels with energies that vary from level to level

4 0
3 years ago
Isotopes called what are used to diagnose disease and to study environmental conditions
Ksivusya [100]
A radioactive tracer, I believe. Someone check that lol.
7 0
3 years ago
Solid Al(NO3)3 is added to distilled water to produce a solution in which the concentration on nitrate, [NO3^-], is 0.10 M. What
VikaD [51]

Answer:

The concentration of nitrate ion NO_{3}^{-}  is 0.033 M.

Explanation:

Al(NO_{3})_{3} \rightarrow Al^{3+} + NO_{3}^{-}

1 mole of [Al^{3+}]  = 3 mole NO_{3}^{-}

Let  [NO_{3}^{-}]  = 3y

then according to above reaction,

[Al^{3+}] = y

[NO_{3}^{-}] = 0.10 M (given)

[Al^{3+}] = ?

3y = 0.10 M

y = \frac{0.1}{3}

y = 0.033 M

So ,concentration of [Al^{3+}] = y = 0.033 M

5 0
3 years ago
What is the mass number of a fluorine atom with 8 neutrons?
Karolina [17]

Answer:

17

Explanation:

since the no. of protons=9

therefore mass no.= 9+8=17

8 0
3 years ago
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