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4vir4ik [10]
3 years ago
14

Arab cultures charted planets in the Dark Ages. Europeans helped establish the Sun-centered model of the solar system during the

Renaissance. Russia and the U.S.A have discovered new features on planets using spacecraft in modern times.
This is an example of
A.
many cultures arguing about how the solar system works and all of their contributions being worthless.

B.
cultures wasting time by doing the same thing over and over throughout history.

C.
how contributions by many different cultures throughout history have advanced our understanding of the solar system.

D.
modern technology proving that earlier cultures could not contribute to our understanding of the solar system.
Chemistry
1 answer:
lesya692 [45]3 years ago
7 0

Answer:

Its C how contributions by many different cultures throughout history have advanced our understanding of the solar system.

Explanation:

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Number 39! Please explain step by step!!!
ahrayia [7]

Answer:

The answer to your question is The honda civic hybrid weights 13181.8 N or 1318.2 kg

Explanation:

Data

Weight = 2900 lb

Weight = ? N

mass = ? kg

1 kg ------- 10 N

0.22lb ---- 1N

Use proportions to solve this problem

                        0.22 lb ------------------- 1 N

                        2900 lb -----------------  x

                         x = (2900 x 1) / 0.22

                         x = 2900 / 0.22

                        x = 13181.8 N

                          1 kg ----------------------- 10 N

                           x     ----------------------- 13181.8 N

                           x = (13181.8 x 1)/10

                           x = 1318.2 kg

                       

7 0
3 years ago
The hypothetical elements shown here (figures a–d) do not include hydrogen or helium. Which element would you expect to bond cov
Marizza181 [45]
The answer is "Figure a" i did it on plato lol
4 0
3 years ago
A sample of an unknown substance has a mass of 0.158 kg. If 2,510.0 J of heat is required to heat the substance from 32.0°C to 6
Alexxandr [17]
Specific heat capacity is the required amount of heat per unit of mass in order to raise teh temperature by one degree Celsius. It can be calculated from this equation: H = mCΔT where the H is heat required, m is mass of the substance, ΔT is the change in temperature, and C is the specific heat capacity.

H = m<span>CΔT
2501.0 = 0.158 (C) (61.0 - 32.0)

C = 545.8 J/kg</span>·°C
5 0
3 years ago
The indicator methyl red has different molecular structures at high and low pH.
Novosadov [1.4K]

Answer:

a. True

Explanation:

Methyl red is an indicator widely used in quality control of oxides as Zinc oxide in the titration with sulfuric acid.

As is used in titrations of acid-base reactions the indicator change in colour. Is red when the pH < 4.4 (Acidic Solutions) and is yellow when pH > 6.2 (Neutral-Basic solutions).

A change in colour means the structure of the indicator is changing with pH. Thus, the answer is:

<h3>a. True </h3>

6 0
3 years ago
Calculate the mass of a 0.297-mL sample of a liquid with a density of 0.930 g/mL.
tekilochka [14]

Answer: 0.27621 g

Explanation:

0.297 ml *0.930 g/ml=0.27621 g

8 0
2 years ago
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