How do scientists use the evidence they gather?A. The evidence helps scientists write new laws for people to follow.
B. The evidence helps scientists come up with explanations about
the natural world.
C. The evidence proves that scientists are always right.
D. The evidence supports scientists' personal opinions about politics.
SUNT

Answers

Answer 1

Answer:

Answer: B

The evidence helps scientists come up with explanations about

the natural world.

When making a research, scientists use the scientific method to collect enough evidence in an experiment related to a hypothesis, the results aiming to support or contradict a theory.

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Which wavelength region is most useful for investigating dense cores inside giant molecular clouds?

Answers

Infrared wavelengths

For Most Substances the distance between particles is smallest when the substancea.exists gas
b.exists as a liquid
c.exists as a crystalline solid
d.exists as an amorphous solid

Answers

I am pretty sure that for Most Substances the distance between particles is smallest when the substance c.exists as a crystalline solid. I pick this option because crystalline solid is the most compact substances unlike the others.
It will definitely help you.

Answer:

c.exists as a crystalline solid

Explanation:

Amongst all the three phases, it is solid phase which is the most compact because the atoms within the solids are bound with a very strong force of attraction. But, solids can exist as either crystalline solid or amorphous solid. Between these two type of solids, it is crystalline solids which are very well packed and the inter atomic distance between their two atoms is the least. It is due to the reason that the atoms within a crystalline solid are arranged in proper order in the form of stacks. But, in amorphous solids the atoms are not arranged properly i.e. their arrangement is random which leads to the increased inter atomic distance. Second comes liquid phase, in liquids the inter atomic forces are intermediate between solids and gases. Atoms in a gas are bound with the weakest force of attraction known as van der Waals that is why the distance between the atoms of a gas is the highest.

Within a single use of the scientific method, which of the following steps can only be performed afterdata is collected?
A. Controls and variables are chosen.
B. The initial experiment is designed.
C. The initial hypothesis is formed.
D. Conclusions are drawn.

Answers

Within a single use of the scientific method, the step which would be performed after we collect data, would be the drawing of a conclusion out of the answers that you've presented - D.

It is usually the case that you first have to analyze the data after you've gather it and then you base your conclusions on it. This isn't, however, always the case.

I need help on this question

Answers

Answer:

at rest because time is passing and speed is still at 0

Explanation:

Which career is most concerned with the study of radioactive isotopes?

Answers

The career in the nuclear laboratory, atomic research centre is most concerned with the study of radioactive isotopes. Also the nuclear thermal power plant, advance military services weapon, research and development are concerned with the study of radioactive isotopes.

What is the chance of a light car safely rounding an unbanked. Curve on an icy road as compared to that of a heavy car: worse, the same, or better? Assume that both cars have the same speed and are equipped with identical tires. Account for your answer.

Answers

Answer:)

Both cars will move in the Same way

Explanation:

Moving on an unbanked icy road, the cars will have friction which will keep them from slipping on the icy road. This friction here is called Centripetal Force. The friction force due to which the tires roll and do not slip is the static friction μsN, (μs= coefficient of static friction , N= Normal Force which is equal to the weight of the car/body, so N=mg).

Now from above description, the centripetal force( $F_(c)$ ) becomes,

$F_(c)$ =f=μsN , (N=mg)

so , $F_(c)$ =μs(mg)

As we know the formula of centripetal force is

$F_(c)$ = m $v^(2)$ /r

Putting the value of $F_(c)$ from above

μs(mg) = m $v^(2)$ /r

cutting the 'm' from both sides, we get

μs(g) = $v^(2)$ /r

μs = $v^(2)$ /rg

we see from the derivation that there is no effect of mass on the cars, so in case of both cars having same speed and same tires, they will act in the same way resulting no effect of their masses on them

Answer:

Both cars will move in the Same way

Explanation:

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