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Usimov [2.4K]
3 years ago
10

What fact do scientists believe provides evidence for the big bang theory?a. all comets follow elliptical orbits.b. most extra-s

olar planets are gas giants.c. all stars feature nuclear fusion in their core.d. all distant galaxies are moving away from us. apex?
Chemistry
2 answers:
snow_tiger [21]3 years ago
8 0

Answer:

D

Explanation:

This is because it is believed that the galaxy was once crammed into a tiny spot and the Big Bang explosion sent the universe expanding and galaxies hurtling way into space away from each other. The force from the Big Bang that is believed to cause this expansion is dark energy.

saw5 [17]3 years ago
4 0

Answer:

D

Explanation:

While all the mentioned phenomena do take place in the universe, the only one that provides evidence of the Big Bang is option D, where distant galaxies are moving further away from us as time goes on.

This is believed to be a result from the Big Bang that projected the known universe into all directions, and they are moving away because of momentum from the explosion so many years ago.

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A slice of Swiss cheese contains 41 mg of sodium.
larisa86 [58]

Answer:

a. 41 mg equals 0.041 grams.

b. 41 mg equals 0.0014462 ounces

c. 41 mg equals 9.039*10⁻⁵ pounds

Explanation:

You know that a slice of Swiss cheese contains 41 mg of sodium.

a. What is this mass in grams?

Knowing that 1 mg = 10⁻³ g, you can apply the following rule of three: if 1 mg equals 10⁻³ g or 0.001 grams, 41 mg will be equivalent to how much mass in g?

mass=\frac{41 mg*0.001 g}{1 mg}

mass= 0.041 grams

<u><em> 41 mg equals 0.041 grams.</em></u>

b. What is this mass in ounces?

Knowing that 1 mg = 3.5274 * 10⁻⁵ ounces, you can apply the following rule of three: if 1 mg equals 3.5274 * 10⁻⁵ ounces, 41 mg will be equivalent to how much mass in ounces?

mass=\frac{41 mg*3.5274*10^{-5}ounces }{1 mg}

mass= 1.4462*10 ⁻³ ounces= 0.0014462 ounces

<u><em>41 mg equals 0.0014462 ounces</em></u>

c. What is this mass in pounds?

Knowing that 1 mg = 2.20462 * 10⁻⁶ pounds, you can apply the following rule of three: if 1 mg equals 2.20462 * 10⁻⁶ pounds, 41 mg will be equivalent to how much mass in pounds?

mass=\frac{41 mg*2.20462*10^{-6}pounds }{1 mg}

mass= 9.039*10⁻⁵ pounds

<u><em>41 mg equals 9.039*10⁻⁵ pounds</em></u>

5 0
3 years ago
What is the answer for chemestry when it says 1.204 times 10^24
Sphinxa [80]

Answer: This is called moles

Explanation:  This is described to be the number of molecules, atoms or ions in a substance :)

6 0
3 years ago
How many moles is 2.80 x 10^24 atoms of silicon
neonofarm [45]
The answer that i found is 4.650
3 0
4 years ago
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emmasim [6.3K]
Inert electrode i would say
6 0
3 years ago
Read 2 more answers
1. A 125 kg box was pushed by applying a
zalisa [80]

Answer:

F = 250 N

Explanation:

Given data:

Mass of box = 125 Kg

Acceleration = 2.0 m/s²

Applied force = ?

Solution:

Formula:

F = m×a

F = force

m = mass

a = acceleration

by putting values,

F = 125 Kg × 2.0 m/s²

F = 250 N ( Kg.m/s² = N)

7 0
3 years ago
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