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3 years ago

20 points BRAINLIEST!!! ASAP ANSWER

1 answer:

6 0

The redshift shows that distant galaxies are moving away. The further away the galaxy, the bigger the redshift. More distant galaxies are moving away faster. Evidence that the universe is expanding and the start of the universe could have been from a single explosion. The Big Bang theory proposes that the universe began in a small space that was hot and dense and then expanded. A massive explosion expansion sent all matter outwards which caused the universe to expand.

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Were there experiences in his life that led to his interest in science and the study of the atom?

charle [14.2K]

Answer:

The right answer is Democritus

Explanation:

He experienced bonding with his father which strongly resulted his interest in science and to the study of the atoms ;)

Your welcome

5 0

2 years ago

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A student slides down a slide at recess. After getting off the slide he goes to cross the monkey bars. As he touches the metal o

SOVA2 [1]

Conduction is the answer

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3 years ago

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What is the pressure drop due to the bernoulli effect as water goes into a 3.00-cm-diameter nozzle from a 9.00-cm-diameter fire

Paul [167]

Answer:

$\Delta P=1581357.92\ Pa$

Explanation:

Given:

diameter of hose pipe, $D=0.09\ m$

diameter of nozzle, $d=0.03\ m$

volume flow rate, $\dot{V}=40\ L.s^{-1}=0.04\ m^3.s^{-1}$

<u>Now, flow velocity in hose:</u>

$v_h=\frac{\dot V}{\pi.D^2\div 4}$

$v_h=\frac{0.04\times 4}{\pi\times 0.09^2}$

$v_h=6.2876\ m.s^{-1}$

<u>Now, flow velocity in nozzle:</u>

$v_n=\frac{\dot V}{\pi.d^2\div 4}$

$v_n=\frac{0.04\times 4}{\pi\times 0.03^2}$

$v_n=56.5884\ m.s^{-1}$

We know the Bernoulli's equation:

$\frac{P_1}{\rho.g}+\frac{v_1^2}{2g}+Z_1=\frac{P_2}{\rho.g}+\frac{v_2^2}{2g}+Z_2$

when the two points are at same height then the eq. becomes

$\frac{P_1}{\rho.g}+\frac{v_1^2}{2g}=\frac{P_2}{\rho.g}+\frac{v_2^2}{2g}$

$\Delta P=\frac{\rho(v_n^2-v_h^2)}{2}$

$\Delta P=\frac{1000(56.5884^2-6.2876^2)}{2}$

$\Delta P=1581357.92\ Pa$

8 0

3 years ago

which option below best explains why the second law of thermodynamics is not violated when heat flies from a cold freezer and in

Rainbow [258]

Explanation:

i am very sorry but you didn't give any options so i can't help you

8 0

3 years ago

A scientific theory states that the universe is expanding. Which of these statements is correct about this theory?

Stolb23 [73]

A scientific theory states that the universe is expanding. the statement is correct about this theory is: d. it is a well supported explanation which cannot become law. a theory is very different from a law. a theory explain why something happen.

hope this help

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3 years ago

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