The word “cumulative” means that something builds on itself. Which example best shows how scientific knowledge is cumulative?A) Watson and Crick worked together to come up with the model of DNA.
B) Kepler based his laws of planetary motions off of Newton’s law of gravity.
C) Hardy and Weinberg independently came up with a population equation.
D) Darwin and his grandfather both worked on the ideas of survivability.

Answers

Answer 1
Answer:

Answer: The correct answer is B.  

Explanation:

"Cumulative" means that something builds on itself. Like one law is formulated from using the result of the other.

Newton's law of gravity had come after that Kepler's laws was formulated.

The law of gravity is more fundamental than Kepler's laws.

Newton formulated his famous law of gravitation between the earth and the moon and also between the Sun and the planet.

After that Kepler's laws came. He gave the law of orbit in which he said that the planet revolves the Sun in an eliiptical orbit. And the other two laws were also given by him.  In this way Kepler's law was formulated by using the law of gravity.

Therefore, Kepler based his laws of planetary motions off of Newton’s law of gravity is the best example to show how scientific knowledge is cumulative.

Answer 2
Answer: Kepler based his laws of planetary motions off of Newton’s law of gravity.

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A ship is able to float on water because it's density is less than that of the water.A. TrueB.False

The inner solar system contains theA)Jovian planets
B)terrestrial planets and asteroids
C)dwarf planets like Pluto

Answers

jovian planets and  dwarf planets like pluto are in the outer part of our solar system. so, terrestrial planets ,which means earth like planets, live in the inner part of our solar system. or B. is the answer

An object will float in water if it weighs __________.a) less than the amount of water it displaces

b) more than the amount of water it displaces

c) less than a gram

d) more than a gram

Answers

An object will float in water if it weights less than the amount of water it displaces.

Answer: a)  less than the amount of water it displaces.

I think the answer would be A. less than the amount of water it displaces.

the engine of a vehicle Move It Forward with a force of 9600 Newton against a resistance force of 2200 Newton is the mass of the vehicle is 3400g calculate the acceleration produced​

Answers

If you use the equation a=Fnet/m then all you need to do is calculate Fnet and plug it into the equation (making sure they are all the correct units). 9600+(-2200)= 7400. 3400g = 3.400kg. A=7400/3.400. A=2176.47059. A=2176

If a substance forms crystals when it solidifies, its _______ points are the same. a. melting and freezing
b. melting and condensation
c. evaporation and freezing
d. evaporation and condensation

Answers

I think the correct answer is A. If a substance forms crystals when it solidifies, its melting and freezing points are the same. For most substances, it is known that the freezing and the melting points are equal. Freezing happens by crystallization, formation of crystals from the liquid form. 

Answer:

Option (a): Melting point and freezing point are will be the same when crystallization.

Explanation:

When crystals form from the mechanism of crystal growth, it’s known as crystallization. A crystal is a solid type of material which is having a regular pattern of atoms and molecules.

Temperature of a compound which changes its physical state from solid state to liquid state is known as melting point temperature.  

Temperature of a compound which changes its physical state from liquid state to solid state is known as the freezing point temperature.  

Most of the liquids are freeze by the method of crystallization. The temperature of the system remains nearly equal to melting point.

Further Explanation:

Basically there are two types of crystallization processes. They are the cooling and evaporation crystallization.  

Salts, sugar and gemstones are some examples for crystals.  

Crystallization consists with two steps; Nucleation and Crystal growth. In nucleation; solute molecules dispersed in the solvent are gather in to clusters. These clusters need to reach a critical size to become stable nuclei, by factors such as temperature and super saturation.  

After nucleation, crystal growth happens. In this process the nuclei increases its size to a critical cluster size.  

In crystal growth solute molecules precipitate out of solution. Then they dissolve back into solution.  

Learn more:

1. Freezing point brainly.com/question/155317 (answer byTenishaTon)

2. Melting point brainly.com/question/13688040 (answer by olowookereboyede)

Keywords:

Melting point, freezing, crystallization

Which type of rock is created when lava cools and hardens?

Answers

Igneous rocks are created when lava cools and hardens.
It's probably called Magna rock

What are the Vedas?a) priests

b) religious writings

c) writings of the Buddha

d) Hindu gods

Answers

Answer:

B religious writing

Explanation:

The Vedas are a large body of religious texts originating in ancient India. Composed in Vedic Sanskrit, the texts constitute the oldest layer of Sanskrit literature and the oldest scriptures of Hinduism. Hindus consider the Vedas to be apauruṣeya, which means "not of a man, superhuman" and "impersonal, authorless