PHYSICS HIGH SCHOOL

Examples of the skills used in science include ____ and ____. a. data, diagrams b. clues, detectives c. facts, inferences d. observations, measurements

Answers

Answer 1
Answer: Examples of the skills used in science include measurements and observations. I am pretty sure that the last option is the most suitable one, because it represents main tools that scientists use during the research whereas the rest of represented tools are used in criminal and math issues.

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Lithium has 3 protons. how many neutrons are in the isotope lithium -8

Answers

Answer:

5 neutrons

Explanation:

Both protons and neutrons have a mass of about 1 atomic mass unit (amu). The number in the notation for an isotope is its mass in amu. That means the number is essentially the sum of protons and neutrons in the isotope (electrons don't contribute significantly to the mass).

If lithium has 3 protons, lithium-8 has 8 - 3 = 5 neutrons.

It should be 5 neutrons

In stars mor massive than the sun, fusion continues until the core is almost all....

Answers

In stars more massive than the sun, the core temperature is hotter, which allows for fusion of more complex elements.

Most of the fusion occurs in the core.

In stars more massive than the sun, fusion continues through Deuterium, Carbon, and finally reaching iron/nickel.

Up to this point, the fusion reaction was endothermic, which means that the energy expended to produce the fusion reaction was exceeded by the energy produced in the reaction.

Fusion past iron is exothermic, and therefore the star will be able to survive by fusing elements heavier than iron.

After the core is almost entirely iron, the star is no longer in the Main Sequence.

So, fusion in stars more massive than the sun continue fusing until the core is almost entirely iron.

Volume is a measure of the quantity of matter in an object. br>

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Not so !  Not only is that statement essentially false,
but it involves significant prevarication as well, too.

Mass is the measure of the quantity of matter in an object.
Volume is a measure of the quantity of space filled by the
object. 

The same mass can have many different volumes, usually
depending on its temperature.  Just consider one kilogram
of ice, water, and steam . . .

An object traveling in a straight line accelerates. What will definitely happen due to the acceleration?

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"Acceleration" means any change in speed or direction of motion. 
If the object is known to be accelerating even though it's traveling
in a straight line, then we know that its speed must be changing.

A snail travels at a rate of 2.37 feet per minute. a. Write a rule to describe the function. b. How far will the snail travel in 6 minutes?

Answers

  a. 
distance = rate*time 
d = 2.37t 

b. 
d = 2.37*6 = 14.22 ft

Answer:

b

Explanation:

According to Charles's law whenever the temperature of a gas at constant pressure decreases the volume increases

Answers

I believe the answer is false
 

The answer is false.
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