As a person pushes a box across a floor, the energy from the person’s moving arm is transferred to the box, and the box and the floor become warm. During this process, what happens to energy?
Answer:
conserved
Explanation:
During this process the energy is conserved
Another class received similar data to what we saw yesterday. Their investigation found that it looks like water enters a plant through the roots and exits through the leaves when light shines on it. Below are three students’ claims to answer the question “what happens to the water inside the plant?”
They have collected the same evidence as our class. Using the things we have done in class so far, provide written feedback to each student. Your feedback should identify what evidence could be used to support their claim. How does the evidence you have in your Thinking Deeper Documents, support (or not support) their claims? Think of ALL the things we’ve done so far in this unit and ALL of the videos we’ve seen.
Student A: The same water molecules that come into the plant through the roots go out of the plant through the leaves. They just flow through the plant without changing.
What evidence supports students A’s claim?
Do you agree or disagree with student A? Why or why not?
Student B: The water molecules that go into the plant are used to make food molecules, and other chemical reactions in the plant form water molecules that come out of the leaves.
What evidence supports students B’s claim?
Do you agree or disagree with student B? Why or why not?
Answer:
a
Explanation:
What is something that is artificially pressurized to to outside air pressure, no links.
The anwser is a plane because it protects pilot, crew and passengers from hypoxia.
Which equation below is the correct equation for photosynthesis?
The hardest mineral known to people is:
slate
granite
diamond
quartz
Answer:
The hardest mineral known to people is Diamond
What is in the center of our galaxy?
- The Sun
- A larger star (than the Sun)
- An asteroid field
- A supermassive black hole
Answer:
The Galactic center also known as "A supermassive black hole"
Explanation:
"Its the rotational center of the Milky way" -google
what is the amount of protons, neutrons, and electrons in the atom to make water
Answer:
10 protons 8 neutrons 10 electrons
In which state is the best known source of petrified wood located? A Arizona B Alaska C California D Colorado
Answer:
Arizona.
Explanation:
Petrified Forest National Park is an American national park in Navajo and Apache counties in northeastern Arizona. Named for its large deposits of petrified wood, the park covers about 346 square miles (900 square kilometers), encompassing semi-desert shrub steppe as well as highly eroded and colorful badlands.
Give ONE real-life example for CHARLE'S LAW and for BOYLE'S LAW in action.
Answer:
charles law: a hot air balloon
boyle's law: filling a bike up with air
Answer:
Tyres of untouched vehicles get deflated during freezing winter days while get inflated in hot summer days. This unusual behaviour is because of Charles's law. In winter due to low temperatures, the air inside a tyre gets cooler, and they shrink
I wish all the best for you!
Describe 3 factors an engineer should take into consideration when choosing material for building the pipes in a pipeline
Gr. 8
Think it has something to do with Viscosity, Density, and Pressure but not sure what
Answer: 1. Material being transported 2. The temperature of the material being transported 3. How long the pipes will be there (lifespan)
Explanation: 1. - The pipe builder should consider the material being transported to choose the correct material of the pipes to use, so they last long and can hold the material.
2. - Similar to 1, the pipe builder should consider the temperature of the material to choose the correct material of the pipes to use, so the pipes don’t break and function properly.
3. - If the pipe builder uses a material that can hold the material, that’s great! If that material will last a short time, it would not work if the pipes were to be used for a long time.
The things you said before about viscosity, density, and pressure are also correct. The correct answers are mainly talking about factors of the material being used in the pipes.
hope this helped :)
Why is the earth big and on the outside round but still bug?
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
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:
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The table shows the speed of sound through different substances.
According to the information in the table, which of the following boys would hear a rock fall off of a cliff a kilometer away?
A. a boy sitting on the grass
B. a boy swimming in the water
C. a boy sitting in a tree with his ear to the bark
D. a boy lying down with his ear to the ground
Answer:
a
Explanation:
a
Answer: i would say it is the boy with his head on the ground.
Sorry if wrong!
would like Brainliest if right.!
The velocity of the rocket is not the same as the speed of the rocket. What is the difference between the velocity of an object and the speed of an object
The difference between the velocity of an object and the speed of an object is that the velocity represents both the magnitude and direction, and speed represents only the magnitude.
What is velocity?
Velocity is the time rate of change of displacement.
Speed is the ratio of distance and the time taken to travel that distance.
Thus, the difference between the velocity of an object and the speed of an object is that the velocity represents both the magnitude and direction, and speed represents only the magnitude.
Learn more about velocity.
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PLEASE HELP ON QUESTION ASAP !
Hi please help on question.If you get answer correct is be willing to give brainliest,a thanks, five stars and 10pts.
My question:
As an analogy of a circuit with resistance, think of an obstacle race . Which parts of a circuit do the obstacles represent? which part of the circuit do the people respresent?
In an analogy of a circuit with a resistance to an obstacle race, we can consider various elements of the race as representative of different components of the circuit.Obstacles, Track or Route, Participants, Start and Finish Line.
Obstacles: The obstacles in the race represent the resistors in a circuit. Just as resistors impede the flow of current in a circuit, obstacles in the race create hurdles that slow down the participants. The difficulty or magnitude of the obstacles can be equated to the resistance value of the resistors in a circuit.
Track or Route: The race track or route itself can be seen as the conductive path in a circuit. It provides a pathway for the participants to move and complete the race. Similarly, the conductive path in a circuit allows the flow of current from the power source to the load.
Participants: The people participating in the race represent the flow of electrons in a circuit. Just as the participants move through the obstacles in the race, electrons move through the resistors in a circuit. The rate at which participants complete the race can be compared to the current flowing through the circuit.
Start and Finish Line: The start and finish line of the race correspond to the terminals of a circuit. The start line represents the positive terminal, where the participants begin their journey, and the finish line represents the negative terminal, where the race concludes.
for such more questions on circuit
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Answer: As an analogy of a circuit with resistance, the obstacles in an obstacle race represent the resistance in a circuit. The parts of the circuit that the obstacles represent are the resistors. The people in the obstacle race represent the current in a circuit. The current is the flow of charged particles (such as electrons) in a circuit. In an obstacle race, the people are moving through the obstacles, just as the charged particles are moving through the resistors in a circuit. The obstacles slow down the people, just as the resistors slow down the flow of charged particles in a circuit.
Explanation:
I need help with question 6 and 7!!! Also, how to do the back???
Q6. In a complete sentence, write a conclusion Ms. West can draw after analyzing her results.
Q7. Looking at the experiment design and results, list at least one "next step" related to the experiment.
how many galaxies are born in a year?
Answer:
However, if we once again assume that our own Milky Way Galaxy represents an average type of galaxy, we can calculate that there are roughly 150 billion stars born per year in the entire Universe. This corresponds to about 400 million stars born per day or 4800 stars per second!
Explanation:
Any other Gypresgions come from shakespeare and are they used today?
Answer:Both books find Shakespeare deeply Catholic, but they reach very different conclusions about what that meant in his life and work during a time of official Protestantism, the Jesuit mission to England, and sharp divisions among Anglicans, Puritans, and Catholics.
Explanation:
Plz helppppppppp meeeeeeeeeeeeeeee
What does the liquid or melted crayon represent in this model?
list both types of energy before skydiver jumps out of the plane and as the sky diver is diving.
Answer : This is an example of Kenitic and potential energy
Explanation:
kenitic: the act of moving or motion
potential: not. moving YET
he was not moving when he was on the plane and had potential energy cause he wasn't getting pulled down and kenitic energy was when he was getting pulled down from force of gravity when he was getting pulled to the ground when he was skydiving
A meteor falls toward Earth's surface. Given that the acceleration due to
gravity is 9.8 m/s^2, what is the meteor's potential energy if it has a mass of 10
kg at an altitude of 400 m?
O A. 408 J
O B. 7,840,000 J
O C. 2J
O D. 39,200 J
Answer:
39,200J
Explanation:
just took the test
The meteor's potential energy if it has a mass of 10kg at an altitude of 400 m will be 39200 J
What is potential energy ?Potential Energy that depend upon the relative position of various parts of system . It is an energy possessed by an object by virtue of its position or configuration.
mass(m) = 10kg
g (acceleration due to gravity) = 9.8m/s^2
altitude(height (h)) = 400m
Meteor's Potential energy = m * g * h
= 10 * 9.8 * 400 = 39200 J
correct option will be a) 39200 J
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Plate Tectonics Lab: Snicker’s Science
Answer:
sup
Explanation:
Huan wants to enter the science fair at his school. He has a list of ideas for his project. Which questions could be answered through scientific investigation? Check all that apply. Does pressure have an effect on the solubility of a substance? Which physicist was the smartest? Is the information on the periodic table difficult to understand? Which brand of soap is the best for cleaning grease off of dishes? Which laboratory experiment is the most fun to perform?
PLEASE HELP! WILL VOTE BRAINLIEST!
Caves are formed from:
freezing water
sedimentation
mechanical weathering
chemical weathering
Answer:
D. Chemical Weathering Hope this helps :)
Explanation:
Freezing water doesn't make sense...at all
sedimentation is "the process of settling or being deposited as a sediment."
chemical weathering is: "the erosion or disintegration of rocks, building materials, etc., caused by chemical reactions"
Have a great day!
Answer:
The answer is chemical weathering.
what is the answer i need answers now
Answer:
listening ,communication ,resolution
Explanation:
In this longitudinal wave, label the arrow that shows the direction the wave travels with a T. Label the arrow that shows how the spring is disturbed with a D.
please help
give me this same text but if it was a 7th grader
Mount Rushmore is an impressive sculpture. Each year, millions of people visit the 60-foot-tall images of American presidents George Washington, Thomas Jefferson, Abraham Lincoln, and Theodore Roosevelt carved into the Black Hills of South Dakota. Mount Rushmore is not without controversy. It was built on land sacred to the Native Americans. In addition, the Sioux were forced off the land after a series of battles.
please dont say "this sounds like a 7th grader so its fine". this is in the assignment so yeah.
Answer:
Mount Rushmore is a very well built sculpture. It is visited by millions of people each year to see 60-foot tall images of the American presidents; George Washington, Thomas Jefferson, Abraham Lincoln and Theodore Rosevelt which are carved into the Black Hills of South Dakota. Mount Rushmore has faced many controversies too. The land it was built on is sacred to Native Americans. The Sioux were also forced to leave the land, after lots of battles
Explanation:
A 10 gram ball is held 2 meters from the ground. It has potential energy. Calculate it.
Answer:
196J or 200J
Explanation:
Potential Energy = mgh
m( mass) = 10gm
h ( height) = 2m
g = 9.8 or 10 m/s ^2 ( choose whichever one is taught to you, usually in my school its 9.8 if the value isn't given )
PE = 10 × 10 × 2 = 200 J
or
PE = 10 × 9.8 × 2 = 196 J
Hope it helps
Answer:
200J
Explanation:
2m x 10gm = 200
How does the angle of light affect the electrical output from a solar cell?
Answer: A photovoltaic solar panel produces electricity in direct proportion to the amount of sunlight falling on it.
Explanation:
The sun's angle in the sky influences the intensity of the light received by the Earth, the location of the sun affects how much energy a solar panel generates.
Answer:
A name as photovoltaic solar panel produces electricity in directions proportion to amount of the sunlight falling it.
Explanation:
the sun's angle in the sky influences the light received by the Earth.
A couple wants to build a holiday cottage, the cottage is not connected to an electricity grid, but the cottage is next to a small river. The river is always flowing and never dries up, the weather is often windy.
Which one should they get to receive energy.
a wind turbine
solar cells
Answer:
Wind turbine since the place is often windy