PHYSICS HIGH SCHOOL

Which of the following is the best example of a compression force?a. dragging a rope to move a sled
b. the force of weight on a bicycle
c. typing the computer key for the letter y
d. the force of a picture hanging on a nail

Answers

Answer 1
Answer:

The best example of a compression force is the force of weight on a bicycle. The answer is letter B. A compression force is when the weight of the bicycle imposes a downward force to the ground and the ground imposes an upward force to the bicycle.
Answer 2
Answer:

I took the test and got B) the force of weight on a bicycle correct

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Assignment: Ultrasound and Infrasound Research Exploration Ultrasound and infrasound are categories of sound with different frequencies. These categories of sound can be used for a variety of different applications. In this research assignment, you will take a look at the industrial applications of ultrasound and infrasound. Your essay should do the following things: • Define and describe in detail (and in your own words) ultrasound and infrasound • Describe how ultrasound and infrasound are used in specific industrial applications and provide detailed examples. When conducting your research, remember to gather information from multiple sources. Start your research by defining ultrasound and infrasound. Then find ideas about industrial applications. The essay should be about 350-450 words, which is 1-1.5 typed pages, double-spaced, using 12-pt. font. Check the rubric to review how you will be graded for this assignment. plz no funny answers
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Which of the following is a chemical property of a mineral?A Hardness
B Luster
C Atomic structure
D Color

Answers

Hardness, color , and luster.

But since you can pick one, I would say hardness

Final answer:

The chemical property of a mineral is its atomic structure, which influences its chemical behavior.

Explanation:

The correct answer is C Atomic structure. A chemical property of a mineral refers to the behavior of a mineral when it undergoes a chemical change or reaction.

Atomic structure is a chemical property because it determines the way in which the atoms of a mineral are arranged and bonded together, which influences its overall chemical behavior.

For example, the atomic structure of a mineral can determine its reactivity with acids or its ability to conduct electricity.The chemical property of a mineral could be derived from its atomic structure.

The atomic structure, which includes the number of protons, neutrons, and electrons in an atom of the element, determines the behavior of the element in a chemical reaction. Hardness, luster, and color are considered physical properties of the mineral, not chemical. Example, quartz (a common mineral) has a specific atomic structure that makes it react to acid differently than a mineral like calcite.

Learn more about chemical property here:

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According to the _____ model, the solar system formed from a cloud of dust and gas.

Answers

The correct answer to the question above is nebular. According to the NEBULAR model, the solar system formed from a cloud of dust and gas. Nebula model is a hypothesis in which tells you the origin (formation and evolution) of the solar system. 

Answer:

According to the NEBULAR model, the solar system formed from a cloud of dust and gas.  

Explanation:

According to Nebular model, the solar system was formed from molecular cloud of dust and gases. The material accreted and collapsed under its own weight. The rotating core gathered more mass increasing its temperature and pressure until nuclear fusion reaction started and Sun was born. The rest of the material flattened into disk from which planets were formed.

Which of the following absorbs the MOST heat energy?a. red objects
b. white objects
c. black objects
d. purple object

Answers

darker is warmer C. Black objects.
Black objects because light waves are attracted to darker objects.

Which of the following is a type of antimatter created in some nuclear fusion reactions within stars?A. photon
B. positron
C. neutrino
D. helium-4

Answers

A type of antimatter created in some nuclear fusion reactions within stars is B. Positron. Antimatter is composed of antiparticles, and is considered to be the opposite of matter. Its antiparticles have the same mass as ordinary particles, but they have the opposite charge. When matter and antimatter come into contact, annihilation or destruction occurs.

Answer:

The answer is B i just took the test and got it correct:)

Explanation:

A constellation is _______ that forms a pattern resembling animals, mythological characters, or objects.A. a group of meteors
B. a group of stars
C. an entire galaxy
D. one single planet

Answers

The answer is the option B. a a group of stars. So the complete sentence is "A constellation is a group of stars that forms a pattern resembling animals, mythological characters, or objects. Most names of constellations originated in ancient times and took their names from the patterns that observer could watch in the sky. Some examples of constellations are Orion, Aquarium, Cancer, etc.

Two point charges are brought closer together, increasing the force between them by a factor of 25. By what factor was their separation decreased? In other words, if r1 is the original separation and r2 is the final separation, what is the ratio r1/r2?

Answers

Answer: 1/5

Explanation: The force between the two charge is inversely proportional to the square distance between charges so as the force increased a factor of 25 the distance can reduced divided by  a factor of 5.

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