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3 years ago

Pa help po science po Ito please

Physics

1 answer:

ludmilkaskok [199]3 years ago

5 0

Answer:

1.mimicry

2.secretion

3. groupings

4. liquid chemical

5.secretion

6..groupings

7. liquid, chemical

8.groupings

9. Hard shell

10. Camouflage

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What would it mean if neither the red or blue litmus paper changes colors?

Anna35 [415]

if the color changes, it is neutral but if it stays the same, it is an acid.

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3 years ago

Which insurance would contradict the big bang theory

n200080 [17]

The Big Bang theory suggests that the universe is constantly expanding and that stars, galaxies and other entities are moving away from each other. If there were a galaxy moving closer to earth then that would contradict the Big Bang theory since the entities should be moving away from earth and from each other.

7 0

3 years ago

What are the two factors that determine the strength of the gravitational force between two objects?

Lena [83]

Answer:

mass and distance

Explanation:

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2 years ago

Would sound travel faster in a thick piece of metal (high density) or a large hollow piece of metal (low density)?

KiRa [710]

Answer:

See the explanation below

Explanation:

The speed of sound waves can be calculated using the following equation:

$v_{s}=\sqrt{\frac{E}{ro} } \\where:\\E = Young's modulus [GPa]\\ro = density of the material [kg/m^3]$

Let's do the exercise of comparing two materials one denser than the other, as is steel and aluminum

ro_steel = 7500 [kg/m^3]

ro_aluminum = 2700 [kg/m^3]

E_steel = 200 [GPa]

E_aluminum = 70 [GPa]

Now replacing the values in the equation for each material.

$v_{steel}=\sqrt{\frac{200*10^9}{7500}}\\ v_{steel}=5163[m/s]$

And for the aluminum

$v_{aluminum}=\sqrt{\frac{70*10^9}{2700} }\\ v_{aluminum}=5091.75[m/s]$

In this way we can see that sound propagates faster in denser materials.

6 0

3 years ago

According to string theory, six space-time dimensions cannot be measured except as quantum numbers of internal particle properti

m_a_m_a [10]

Answer:

$10^{-35}\ meters$

Explanation:

The string theory is a theoretical concept, the very small particles of particle physics are rep[laced by strings. This theory also applies to black hole physics, nuclear physics, cosmology etc.

According to string theory, six space-time dimensions cannot be measured except as quantum numbers of internal particle properties because they are curled up in size of the order of $10^{-35}\ m$ .

The length of the scale is assumed to be on the order of $10^{-35}\ m$ . Hence, the correct option is (a).

5 0

3 years ago

Pa help po science po Ito please​

Pa help po science po Ito please