Physics Middle School
Answers
Answer 1
Answer:
JOIN MY QUIZIZZ GAME!!!
Explanation:
The code is 272160 after you go to joinmyquiz.com
Related Questions
The first supersonic flight was in 1947. It was just above the speed of sound. Which altitude would you expect Captain Yeager to have used for his flight?
Sea level
1,000m
13,700m (within altitude used by commercial planes today)
85,000m (where meteor showers originate)
Answers
Answer:
c
Explanation:
The answer for this one is actually letter C.
pls help:
Which individual elements make up the following common compounds?
CaCO3
CaCl2
C3H6O
HCl
Ca(OH)2
Answers
Answer:
1. Calcium carbonate
2. Calcium chloride
3. Acetone
4.Hydrogen chloride
5. Calcium hydroxide
Explanation:
Look at the pictures to answer please and thank you Branleist goes out to
Answers
Ok, Amplitude is C, Wavelength is A, Trough is D, and crest is B.
Hope this helps!
A toy car was used in an investigation about unbalanced forces. During which of the following scenarios was the car not experiencing an unbalanced force? *
20 points
1.The toy car speeds up as it rolls down a ramp.
2.The toy car travels forward at a constant speed.
3.The toy car slows down as it rolls up a hill.
4.The toy car changes direction at a constant speed.
Answers
Answer:
Number 2
it is using Newton’s first law.
also known as the law of inertia
look that last word up
Explanation:
number 2, the question asked which car was not experiencing a unbalanced force. number 2 says the car is traveling at a constant speed signifying that nothing was in the cars way allowing it to travel with ease
Which of the following forces require physical contact?
A) tension
B) friction
C) applied force
D) air resistance
E) magnetic force
Answers
Answer:E Magnetic force
Explanation: when things are magnetic they touch so therefor e is your answer
E)magnetic force is the correct answer because it is using a polar opposite (push-pull) relationship that requires physical force to separate apart from one another
I do not understand Net Force at all- I would really appreciate it! I'll also include a brainliest since it is quite a bit! Thank you!
Answers
Answer:
See below
Explanation:
Net Force is the force which is the sum of all the forces acting on object i.e. pushing of pulling.
Net Force:
1) 4N (net force is 4N to the left)
2) 2 - 7 = -5N (net force is 5N to the left)
3) 4 - 4 = 0 (net force Zero)
4) 6 + 3 = 9N (net force is 9N to the right)
5) 4 - 8 = -4N (net force is 4N to the left)
6) 4 - 5 = -1N (net force is 1N to the left)
7) -3 - 3 = -6N (net force is 6N to the left)
8) 2 + 4 - 5 = 1N (net force is 1N to the right)
9) 3 - 6 = -3N (net force is 3N to the left)
10. 4 + 4 - 7 - 1N (net force is 1N to the right)
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Please help 20 points
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The three ways waves change direction are reflection, refraction, diffraction.
In 3-5 complete sentences, compare those three ways that waves change direction.
Answers
Reflection is a change in direction of a wave between two different objects that is the Wave returns to the medium from which it begins.
Refraction is When a light travels from air into water it slows down causing it to change direction slightly.
Diffraction Involves a change in direction of waves as they pass-through and opening.
Reflection is a change in direction of a wave between 2 different objects that is the wave returns to the medium from which it begins.
Refraction is when a light travels from air into the water it slows down causing it to change direction slightly.
Diffraction involves a change in direction of waves as they pass through an opening.
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You sit in a swivel chair with your arms out and feet off the floor and you twist your torso and the chair moves. Which law of motion is this?
Answers
Answer:
Explanation:
its a chair that spins around
It’s Newton’s law of motion. his first law of motion or could be third law of motion
Do you think his evidence is strong? Why or why not?
Answers
Answer:
No
Explanation:
The reason why Barry's evidence isn't strong because "it's not enough to support his claim" that strong magnets repel and weak magnets attract. Barry needs to have at least three trials for each test to greater prove his claim. Doing so will show that the test isn't incorrect because he repeated the test multiple times and got the same results. If Barry does three trials for each test and record his results then he would have enough evidence to support his claim.
Hope this helps.
No, the evidence is not strong enough, as there is a lack of repetition and information on how the experiment was done.
What is missing?
The first thing that is missing is information on how the experiment was done, things like
How strong is the strong magnet?How strong is the weak magnet?Which pole is which on each magnet?
Strong and weak magnets behave in the same way, opposite poles attract and equal poles are repelled, thus, there must be a problem with Barry's experiment.
Ignoring that, another problem is the lack of repetitions. An experiment must be done several times to see if the results are always the same, in the given evidence it was done only once for each, so we don't know if after another trial the outcomes will be the same.
If you want to learn more about experiments, you can read:
https://brainly.com/question/5411373
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Imagine a bird is diving into the ocean. At what point is the bird’s kinetic energy the greatest?
Answers
Answer:
when she went in the ocean.
Explanation:
Which option explains the rule to understand the working of motor?
(a) When a current carrying conductor is moved with a force, it creates the magnetic field.
(b) When a conductor is moved inside a magnetic field, current is produced in the conductor.
(c) When magnetic field is moved relative to the conductor, current is produced in the conductor.
(d) When a current carrying conductor placed in a magnetic field, it experiences a force by
magnetic field.
Answers
D is the correct answer
Godzilla was running wild in Brigham City but was finally captured. The Police
Department needs you to tell them his density (the FBI must know this).
You have a huge vat of water filled to the 1,000 L level. You drop the kicking and roaring Godzilla into the vat. It now reads 2,716 L. At the bottom of your vat is a scale. You empty the water and weigh Godzilla His mass is 8,000kg. What is his density?
Answers
Answer: 4.66 glml
Explanation:
4.66 kohl I looked it up for u
Jus trust
Help please
Science...
Answers
Answer:
im pretty sure 2
Explanation:
How long will it take for an object to hit the ground when dropped from a height of 7m?
Answers
Answer:
Multiply the time by the acceleration due to gravity to find the velocity when the object hits the ground. If it takes 9.9 seconds for the object to hit the ground, its velocity is (1.01 s)*(9.8 m/s^2), or 9.9 m/s.
Explanation:
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What do you understand by the statement-The heat of vaporization of water is about 2,260 kJ/kg
Answers
Answer:The statement "The latent heat of vaporization of water is 226kj/kg." means the amount of heat energy needed to convert one kilogram of water from the liquid phase to vapor is 226kj/kg. Here, the term "latent" refers to a phase-changing process and the term "vaporization" refers to the phase change from liquid to gas
Explanation:
Answer:
The latent heat of vaporization of water is 226kj/kg." means the amount of heat energy needed to convert one kilogram of water from the liquid phase to vapor is 226kj/kg. Here, the term "latent" refers to a phase-changing process and the term "vaporization" refers to the phase change from liquid to gas
Explanation:
What effort force will be required to lift the 20 N object using the pulley above?
Answers
Answer:
I think it is 5N.
Explanation:
When sound waves cause the eardrum to vibrate, these vibrations are immediately passed on to the _______________.
outer ear and ear canal
tiny hairs
three small bones in the middle ear
inner ear
Answers
Answer: three small bones in the middle ear
Explanation: Sound waves enter the outer ear and travel through a narrow passageway called the ear canal, which leads to the eardrum. The eardrum vibrates from the incoming sound waves and sends these vibrations to three tiny bones in the middle ear. These bones are called the malleus, incus, and stapes.
When sound waves cause the eardrum to vibrate, these vibrations are immediately passed on to the three small bones in the middle ear. So, the correct option is C.
What are Sound waves?
A sound wave is defined as a pattern of disturbance that is caused by the movement of energy that travels through a medium such as air, water or any other liquid or solid substance as it propagates away from the source of the sound which is the object made by vibration and pressure generate waves, for example, a ringing cellphone.
These waves enter the outer ear and pass through a narrow passage called the ear canal leading to the eardrum which vibrates with the incoming sound waves and sends these vibrations to three small bones in the middle ear where these bones are called malleus, incus. and steppes.
Thus, the correct option is C.
Learn more about Sound waves, here:
https://brainly.com/question/21995826
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Which process would correctly calculate the frequency of a wave?
dividing speed by wavelength
dividing frequency by wavelength
multiplying frequency by period
dividing wavelength by period
SOMEBODY PLEASE ANSWER! This test determines my grade.
Answers
Answer:
dividing speed by wavelength
Explanation;
frequency=speed:wavelenght
Answer:
A- Dividing speed by wavelength
Explanation:
Just took the test
In 3-5 complete sentences, compare the three ways that waves change direction.
Answers
Answer:
There are many ways to compare waves and how they change direction. The most common way is through the wind. This is different from human force because of direct contact in the wind and human force. However they both intact something physically moving the ocean. This compares how different waves move.
Explanation:
i tried my best to help!
Answer:
Reflection is the change in direction of a wave between two different objects such that the wave returns to the medium from which it began. In other words, the waves are sent back towards the source. Sound waves, light waves, and water waves can all be reflected.
Explanation:
Incident Ray – the wave/ray traveling towards a surface
Angle of Incidence – the angle at which the traveling wave/ra
y hits a surface
Equal (or Normal) – divides the two rays (incident / reflected) into two equal angles
Angle of Reflection – the angle at which the reflected wave returns towards the original medium
Reflected Ray – the wave/traveling away from the “hit” surface, and now traveling towards the original medium
How is the structure of an atom best described?
a negative core surrounded by densely packed matter
a neutral core surrounded by mostly empty space
a positive core surrounded by mostly empty space
a positive core surrounded by densely packed matter
Answers
Atoms is basic particles ,electrons,neutrons and the Regions of the atom are called electron shells and contain the electrons. So “a neutral core surrounded by mostly empty space”sounds pretty sure to me :)
Answer:
the right anwser is A NEUTRAL CORE SURROUNDED BY MOSTLY EMPTY SPACE
Explanation:
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Jody drives 120 miles south from Kingston, NY to Princeton, NJ. If she drives 60 mph, how long will it take her to make the trip?
cannot be determined
1 hour
2 hours
4 hours
people keep giving really stupid answers-
Answers
sorry if its wrong but 2 hours??
2 hours cause 60 mph then 2 hours
Pls help!
What is movement of energy from one system to another also known as?
Answers
Answer:
Either energy transformation or energy conversion
Depends on which one you were taught.
Compute the latent heat of 10 kg substance if the amount of heat for a phase change is 300 kJ.
Answers
Answer:
simply because mass = velocity
and from this 7(8902314_ it is simple
what do you think a divergent (constructive) boundary is? How do plates interact with each other?
Answers
Divergent boundaries are areas where plates move away from each other, forming either mid-oceanic ridges or rift valleys. These are also known as constructive boundaries. ... This causes the oceanic plate to buckle and usually results in a new mid-ocean ridge forming and turning the obduction into subduction.
Hope this helps.
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Read the severe weather warning and answer the question.
Warning
A storm system has formed over warm water in the Gulf of Mexico. Winds in the system are rotating counterclockwise and are expected to reach speeds up to 200 miles per hour.
What type of severe weather is being described?
Blizzard
Hurricane
Thunderstorm
Tornado
Answers
Answer:
hurricane
Explanation:
hurricane!
I believe that is correct, good luck.
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what is states of water?? please give me an example or two!!! best answer will get marked brainliest
Answers
Answer: Three states of water are liquid, solid, and gas.
Explanation:
When water is at room temperature it is a liquid, when it is at 32° F or below it is at freezing temperature and will turn to a solid known as ice, when water reaches above 212° F it will evaporate into a gas.
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Describe how the banks of a river are changed over time by weathering!
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Answers
Answer:
The river bank can expand due to the water breaking apart which can cause sediment to move and change/erode
Explain how water changes state using physical changes.
Are there the same number of water molecules after the change?
How does this prove the Law of Conservation of Mass?
Answers
Answer:
Explanation:
Gbuu g by. Out vvuitguvvigvvvug. It uby
Use (Socratic ) you will get the answer
what do you think a divergent (constructive) boundary is? How do plates interact with each other?
Answers
Divergent boundaries usually occur when two tectonic plates or more pull away from each-other causing the empty spaces to fill with magma or water. Tectonic plates interact with each-other in many different ways, they can move towards one another (converge), or move away from one another (diverge), or slide past one another (transform)... These movements occur during earthquakes.
I need help with my science question its this Explaining What factors affect an object's kinetic energy?
The facotrs of it is mass and speed
Answers
Answer:
mass and speed
Explanation:
