PHYSICS HIGH SCHOOL

What are the fundamental units involved in a unit of the given derived quantitiesDensity
Acceleration
Force
Pressure
Work​

Answers

Answer 1
Answer:

Answer:

Density → Mass and Length.

Acceleration → Length and Time.

Force → Mass, Length and Time.

Pressure → Mass, Length and Time.

Work → Mass, Length and Time.

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Which of the following situations would cause the greatest decrease in the motion of molecules in a system
You run straight off a high diving board at a speed of 6 m/sec. You hit the water 2 seconds later.a. How far did you travel horizontally during the 2 seconds?b. How far did you travel vertically during the 2 seconds?c. How fast were you moving horizontally when you hit the water?d. How fast were you moving vertically when you hit the water?
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A child slides down a slide on the playground and her hair starts to stand on end. What happened?

Answers

It's static electricity from sliding down. Whenever a person goes fast on something, (say a roller coaster/slide/etc...) their hair gets filled with static electricity. Have a good day! :3 
possibly static electricity, I'm not so sure you should rely on my answer, but it's a guess.

Describe the relationship between a moving objects mass and its kinetic energy

Answers

KE = 1/2 mv^2 is the relationship betwee mass and kinetic energy

How does is the terminal velocity of a feather different from the terminal velocity of an egg?

Answers

if under vacuum the terminal velocity of the egg and feather would be the same because only the acceleration due to gravity is only force acting on it. but at normal condition, their terminal velocity are different because to wind resistance and shape factor that will contribute resistance of an object to go down.

Answer:

The terminal velocities will be the same in a vacuum and different for the egg and further.

Explanation:

Thinking process:

The terminal velocity is the maximum velocity that an object can attain after overcoming the resistance caused by the atmosphere or air. In other words, the velocity equation is given as:

F_(net) = D -W

where F is the net force,

D = Drag force

W = Weight of the object falling down.

The drag force increases by the increase with the square of the velocity like this:

W = C_(d) \frac{\rhoV^(2)A } {2}

The terminal velocity is given by the equation:

V = Sqrt (2W/CdpA)

In the absence of friction, like a vacuum, the velocities are the same.

In the atmosphere, there is drag, and the velocities are different.

Which of the following is not a possible effect of rising carbon dioxide levels on plants?

Answers

Hi:)

I think those were the options for your question, tell me if I'm wrong!
increased photosynthesis (this is false, plants need carbon dioxide for photosynthesis), increased plant mortality (this is the correct answer!!!!!)  increased crop productivity (this is also false, it is connected to photosynthesis) and increased plant growth (also false)

Increased plant mortality ( option B ) Is the correct answer on edg. I just took the test. :)))

Traditional explosives use the energy released by chemical reactions. Nuclear weapons use the energy released by nuclear reactions. Why are nuclear weapons much more destructive than traditional explosives? Question 16 options: A. Chemical reactions can release much more energy than nuclear reactions B. Chemical reactions always use more energy than they release Nuclear weapons always contain more chemicals than traditional explosive C. Chemical reactions always release more energy than they use D. Nuclear reactions can release much more energy than chemical reactions

Answers

I believe the correct answer from the choices listed above is option D. Nuclear weapons are much more destructive than traditional explosives because nuclear reactions can release much more energy than chemical reactions. Hope this answers the question.

Answer: The correct answer is option D.

Explanation:

Chemical reactions are defined as the reactions in which rearrangement of one or more substances gets converted to one or more different substances known as products. Energy is released in the reactions where energy of products is less than the energy of the reactants.

Nuclear reactions are the reactions in which atomic nucleus undergoes change and releases a huge amount of energy in the process. There are two types of nuclear reactions: Nuclear fusion and nuclear fission. Both the nuclear reactions releases a huge amount of energy.

From the given information above, we conclude that the correct option is Option D.

What did the protoplanets become?a. nebulae
b. planets
c. solar nebulae
d. planetesimals

Answers

What did the protoplanets become?

a. nebulae
b. planets
c. solar nebulae
d. planetesimals

The protoplanets become nebulae. The answer is letter A. The rest of the choices do not answer the question above.

The answer is B. Planets
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