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4 years ago

2.What is forensic paleontology? 4.What are Forensic wood anatomists?

Physics

1 answer:

lutik1710 [3]4 years ago

6 0

Forensic paleontology are tools used to help identify and investigate intelligent cases of criminal activity.

Forensic Wood Anatomists are people who are able to come to conclusions of clues of both macro and microscopic levels using forensic paleontology.

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How did the astronomy of hipparchus and ptolemy violate the principles of early greek philosophers?

Mariana [72]

Answer: Hipparchus & Ptolemy believed sun and moon travel around circles with Earth in the middle (geocentric) while Plato and Aristotle believed Perfect unchanging heavens

Explanation: thus hipparchus and ptolemy violate early greek philosophy

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3 years ago

1<br> 2<br> 3<br> What would happen if Bulb 1 goes out?

aleksandrvk [35]

Answer:

it will explode

Explanation:

because it will explode

5 0

3 years ago

In which of the following examples does the object have both kinetic and potential energy? Select all that apply.

notsponge [240]

I believe the answer is H for when you bounce it, it has stress when it hits the floor and then goes up giving it kinetic

6 0

3 years ago

Read 2 more answers

The concentration of a solution that contains 70g of H2SO4 in 0,28 dm³ of solution is?

Simora [160]

Taking into account the definition of molarity, the concentration of a solution that contains 70 g of H₂SO₄ in 0,28 dm³ of solution is 2.5510 $\frac{moles}{L}$ .

<h3>Definition of molarity</h3>

Molar concentration or molarity is a measure of the concentration of a solute in a solution and indicates the number of moles of solute that are dissolved in a given volume.

The molarity of a solution is calculated by dividing the moles of solute by the volume of the solution:

$Molarity=\frac{number of moles}{volume}$

Molarity is expressed in units $\frac{moles}{L}$ .

In this case, you have:

number of moles= 70 g× $\frac{1 mole}{98 g}$ = 0.7143 moles, where 98 g/mole os the molar mass of H₂SO₄
volume= 0.28 dm³= 0.28 L (being 1 dm³= 1 L)

Replacing in the definition of molarity:

$Molarity=\frac{0.7143 moles}{0.28 L}$

Solving:

<u><em>Molarity= 2.5510 </em></u> $\frac{moles}{L}$

Finally, the concentration of a solution that contains 70 g of H₂SO₄ in 0,28 dm³ of solution is 2.5510 $\frac{moles}{L}$ .

Learn more about molarity:

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4 0

2 years ago

In the diagram, R1 = 40.0 ,

Nostrana [21]

Answer:

51 Ω.

Explanation:

We'll begin by calculating the equivalent resistance of R₁ and R₃. This can be obtained as follow:

Resistor 1 (R₁) = 40 Ω

Resistor 3 (R₃) = 70.8 Ω

Equivalent Resistance of R₁ and R₃ (R₁ₙ₃) =?

Since the two resistors are in parallel connection, their equivalent can be obtained as follow:

R₁ₙ₃ = R₁ × R₃ / R₁ + R₃

R₁ₙ₃ = 40 × 70.8 / 40 + 70.8

R₁ₙ₃ = 2832 / 110.8

R₁ₙ₃ = 25.6 Ω

Finally, we shall determine the equivalent resistance of the group. This can be obtained as follow:

Equivalent Resistance of R₁ and R₃ (R₁ₙ₃) = 25.6 Ω

Resistor 2 (R₂) = 25.4 Ω

Equivalent Resistance (Rₑq) =?

Rₑq = R₁ₙ₃ + R₂ (series connection)

Rₑq = 25.6 + 25.4

Rₑq = 51 Ω

Therefore, the equivalent resistance of the group is 51 Ω.

4 0

3 years ago