Physics Middle School

I will mark brainlist pls help and. Give right answers

Answers

Answer 1

I think its b. Answer:

Explanation:

Answer 2

The answer to this question is going to be a

Related Questions

science, who ever answers this will get a brainlest

Answers

Answer:

divergent boundary

Explanation:

Answer:

Divergent boundaries is the process in which 2 plates are moving apart frm each other.

Many plants like soy bean and corn have been selectively bred. Do you think this is acceptable and whyyyyy or why notttt?

Answers

If it doesn’t produce it. Im sure its not acceptable.

Yes because there’s a reason to everything, like to make more product or to sell more.

what does an unconformity in a sequence of rock layers reveal about geologic history?
a. An organism went extinct during that time

b. a layer of rock might have eroded causing a gap in the record

c. the layers of rock cover hundreds of square miles

d. the new rock layers have been deposited very quickly

Answers

your answer will be “ b “

The answer will be b

Given a force of 90 N and a acceleration of 30 m/s/s, what is the object’s mass?

Answers

The object’s mass is 3

3 is the mass of the object

humans can hear the squeaks and clicks that bats emit while using echolocation to see their surroundings

TRUE OR FALSE?

Answers

Answer:

False?

Explanation:

Hope this helps you!

If this is wrong next time I will be better!

Very much false we don’t have that great of ears lol

Holden is trying to determine the velocity of his race car. He went 20 meters east, turned around, and went 40 meters west. His car was 20 meters from the starting line. This took 5 seconds.

What is the car’s average velocity?

4 m/s east
4 m/s west
12 m/s west
12 m/s east

Answers

The average velocity can be found by calculating the total displacement of the car and dividing it by the total time.

The car's average velocity is "4 m/s west".

First, we will find the total displacement as follows:

Total Displacement = 20 m (East) + 40 m (West)

Taking East direction as positive and west direction as negative, we get:

Total Diplacement = 20 m - 40 m

Total Displacement = - 20 m = 20 m (West)

Now, the average velocity of the car will be:

[tex]Average\ Velocity = \frac{Total\ Displacement}{Total\ Time}\\\\Average\ Velocity = \frac{20\ m\ (West)}{5\ s}\\\\[/tex]

Average Velocity = 4 m/s west

The attached picture shows the description of average velocity.

Learn more about average velocity here:

https://brainly.com/question/862972?referrer=searchResults

Answer: b

Explanation: just put B :)

What is the critical mass of a species?
A) the number of individuals that must exist for a species to continue
B) the weight of all representatives of a species
C) the weight of the last representative of a species

Answers

Answer:answer is a

Explanation:

Describe characteristics and identify oxidation-reduction(redox) reactions.

plz and thx

Answers

Answer:

I hope This helps

Explanation:

The majority of oxidation-reduction (redox) reactions share two critical features. One is that a reduction happens in both, while equivalent oxidation occurs; they are combined.

The oxidation - reduction (redox) reactions has the characteristics of changes in oxygen, hydrogen and electrons.

What are the characteristics and identify oxidation - reduction (redox) reactions?

Oxidation is the process during the reaction the reactant loses the electron. Reduction is the process during the reaction, the reactant gains the electron.

Redox reaction can be identified by knowing the number of oxidation. It can also be known through the atoms in this process should be bonded as ionic. During the reaction, the increase in oxidation number can be said as oxidation.

The different types of redox reactions are:

Decomposition reactionDisproportion reactionCombination reactionDisplacement reaction

These are the important characteristics of oxidation and reduction (redox) reactions.

Learn more about redox reactions,

https://brainly.com/question/13293425

#SPJ2

What is an advantage nuclear power has over solar or wind? *
Nuclear power is cheap.
Nuclear power is reliable.
Nuclear power is clean.
Nuclear power can be built anywhere.

Answers

B: reliable

nuclear power is not cheap or clean, it also cannot be built anywhere i don’t think if not b then i suppose try D next

Answer:

it more reliable

Explanation: Nuclear power is 2.5 to 3.5 more reliable than wind and solar

Rocks in the Earth's mantle contain a higher percentage of _______ and _______ than do rocks in the Earth's crust.
A- silicon and oxygen
B- iron and silicon
C- iron and magnesium
D- magnesium and oxygen

Answers

The Answer is C - iron and magnesium :)

the answer is c.......

HELP ME ASAP PLEASE!!!!!!

A chemist begins experimenting with silver and records the following properties:

Silver is a white metal that is an excellent conductor of heat and electricity. Silver tarnishes when exposed to air and light. The density of silver is 10.49 g/cm 3. The melting point is 962 degrees C and the boiling point is 2000 degrees C. Which of the following is NOT a physical property?

density of silver is 10.49 g/cm 3

melting point is 962 degrees C

Silver tarnishes when exposed to air and light

boiling point is 2000 degrees C

Answers

Answer:

3. Silver tarnishes when exposed to air and light

Explanation:

Physical properties are properties that change substances in ways that is visible to a human by using their senses (ie. see, touch, etc)

The rest of the answers are chemical properties, which cannot be seen with the human senses, and requires other special devices or techniques to tell.

-Vibilities

Tires with too much air can explode when overheated. Why? *

The particles in the tire clump together.
The particles in the tire spread out.
The particles of air inside the tire clump together.
The particles of air inside the tire spread out.

Answers

Answer:

D. The particles of air inside the tire spread out

Explanation:

The answer is D: The particles of air inside the tires spread out!

Given a force of 50 N and an acceleration of 5 m/s/s, what is the object’s mass?

Answers

Baseball? ........................sorry if it’s wrong

The object’s mass would be 10g

Why does the velocity of the ball change when it hits the tree?

Answers

Answer:

If a ball is thrown vertically upward from the roof of a 32 ft. tall building with a velocity of 80 ft/sec, it's height in feet after t seconds is s(t)=32+80t-16t^2

Explanation:EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE

The tree exert a force that cause the ball to change direction

HELP PLEASE DONT ANSWER IF YOU DONT KNOW!!!!!!!!!!!!!!!!!!!!!!
What part(s) of the integumentary system does the staphylococcus infection affects; be specific: structures, tissue layers, cells of sublayers tissue, homeostatic imbalance, components of within the imbalance should be identified, etc.

Answers

it is a surface layered infection that is commonly found on soft tissue or within the nasal cavity.

It is the surface layered infection that is commonly found on soft tissue or within the nasal cavity

Yall have helped a lot i just need help on this then ill be done for a while
Write a discussion post that contains the following:
Information about the magnetic field from the three websites you used.
What each author believes about the magnetic field.
What you believe about the magnetic field.
Citations for your three websites.

Answers

Answer:

f(x)=a(x - h)2 + k

Much like a linear function, k works like b in the slope-intercept formula. Like where add or subtract b would determine where the line crosses, in the linear, k determines the vertex of the parabola. If you're going to go up 2, then you need to add 2.

The h determines the movement horizontally. what you put in h determines if it moves left or right. To adjust this, you need to find the number to make the parentheses equal 0 when x equals -2 (because moving the vertex point to the left means subtraction/negatives):

x - h = 0

-2 - h = 0

-h = 2

h = -2

So the function ends up looking like:

f(x)=a(x - (-2))2 + 2

Subtracting a negative cancels the signs out to make a positive:

f(x)=a(x + 2)2 + 2Explanation:

(Fill in the blanks)For every force there is one that is_____in size but _________in direction.

Answers

Answer: For every force there is a reaction force that is equal in size, but opposite in direction.

Hope it helps:)

For every force, there are 2 components one that is equal in size but opposite in direction.

What is force?

Force is defined as a cause which is capable of changing the motion of an object. It can cause an object which has mass to change it's velocity. It is also simply a push or a pull . It has both magnitude as well as direction.Hence, it is a vector quantity.

It has SI units of Newton and is represented by'F'.Newton's second law states that force which acts on an object is equal to momentum which changes with time. If mass of object is constant, acceleration is directly proportional to net force acting on an object.

The concepts which related to force are thrust and torque .Thrust increases the velocity of an object and torque produces change in rotational speed of an object.

Learn more about force,here:

https://brainly.com/question/14451155

#SPJ2

This ecosystem's water covers much of the earth's surface:

a. Desert

b. Ocean

c. Pond

d. Forest

Answers

Answer: B or C

Explanation:

Answer:

Ocean

Explanation:

................

Explain the impact of objects in space on each other including: (1) the sun on the earth's and (2) the moon on the earth.

Answers

Answer: Its from 2. since are taking impact by the meteors.

Explanation:

(1) The sun impacts the Earth with gravity- the mass of the Sun keeps the Earth in orbit.
(2) The moon impacts the Earth with gravity. It keeps the two in orbit and also causes things like the tides.

Look at the diagram below.

Ray 1 from the Sun moves through air and falls on the surface of a lake. Ray 2 is a ray which travels from the surface of the lake at the point Ray 1 strikes the lake, and moves towards air. Ray 1 and Ray 2 make the same angle with the surface of the lake. Ray 1 bends towards the vertical when it enters the lake as Ray 3

(Ik this isn't physic's but its the closest i could find)
Which statement is correct about Ray 1?

A part of it is reflected as Ray 2.
A part of it is reflected as Ray 3.
Some of it is absorbed as Ray 2.
Some of it is absorbed as Ray 3.

Answers

A

Because the answer is A

Answer:

Some of it is absorbed as Ray 2.

Explanation:

hope this helps!

Compare metamorphic rock and intrusive igneous rock in terms of how and where they form. Then compare sedimentary rock and extrusive igneous rock in terms of how and where they form.

-I need help I only have 13 points and I'll try to give a good amount.
(there is not one that just says science so i chose random subject)

Answers

Answer: Igneous rock , formed by the cooling of magma (molten rock) inside the Earth or on the surface. Sedimentary rocks, formed from the products of weathering by cementation or precipitation on the Earth's surface. Metamorphic rocks, formed by temperature and pressure changes inside the Earth.

Explanation:

Other Questions

what two questions can you ask yourself when deciding if you need cite something you have paraphrased? Porque los modelos de Thomson, Rutherford y Bohr fueron descartados? In DEF, the measure of F=90, DE = 91 feet, and FD = 59 feet. Find the measure of D to the nearest degree. Which of the following expressions is equivalent to4( x+ 5)? In "Saving Tobe," why does Amalia decide to stay married to Serafin?A) She feels loyal to him because they have supported each other through difficult times for many years. B) He promises that the move to America will help him to address his grief and return to being the person she used to know. C) She feels guilty about leaving him because she feels sorry about the way his brother died.D) He describes positive aspects of life in America and she is relieved to escape from her difficult life in Italy.Please help, I'm trying to get my grade up and this is part of the Unit Test. what is symbolic expression Whats 2+2+2+2+3+3+45837298=? True of False. You can use the diameter to find the Area of a circle STORIES OF USEFUL INVENTIONS, excerptBy S. E. Forman1911THE MATCHThere never was a time when the world was without fire, but there was a time when men did not know how to kindle fire; and after they learned how to kindle one, it was a long, long time before they learned how to kindle one easily. In these days we can kindle a fire without any trouble, because we can easily get a match; but we must remember that the match is one of the most wonderful things in the world, and that it took men thousands of years to learn how to make one. Let us learn the history of this familiar little object, the match.Fire was first given to man by nature itself. When a forest is set on fire by cinders from a neighboring volcano, or when a tree is set ablaze by a thunderbolt, we may say that nature strikes a match. In the early history of the world, nature had to kindle all the fires, for man by his own effort was unable to produce a spark. The first method, then, of getting fire for use was to light sticks of wood at a flame kindled by natureby a volcano, perhaps, or by a stroke of lightning. These firebrands were carried to the home and used in kindling the fires there. The fire secured in this way was carefully guarded and was kept burning as long as possible. But the flame, however faithfully watched, would sometimes be extinguished. A sudden gust of wind or a sudden shower would put it out. Then a new firebrand would have to be secured, and this often meant a long journey and a deal of trouble.In 1827, John Walker, a druggist in a small English town, tipped a splint with sulphur, chlorate of potash, and sulphid of antimony, and rubbed it on sandpaper, and it burst into flame. The druggist had discovered the first friction-chemical match, the kind we use to-day. It is called friction-chemical because it is made by mixing certain chemicals together and rubbing them. Although Walker's match did not require the bottle of acid, nevertheless it was not a good one. It could be lighted only by hard rubbing, and it sputtered and threw fire in all directions. In a few years, however, phosphorus was substituted on the tip for antimony, and the change worked wonders. The match could now be lighted with very little rubbing, and it was no longer necessary to have sandpaper upon which to rub it. It would ignite when rubbed on any dry surface, and there was no longer any sputtering. This was the phosphorus match, the match with which we are so familiar.What was the main problem with relying on nature to start a flame? Fire could only be collected with "sticks of wood" that were hard to find. Fire had to be "carefully guarded," requiring someone to stay behind from hunting. Fire had to be "carried to the home," which could be dangerous and awkward. Fire was likely hard to find, requiring a "long journey and a deal of trouble." SHE TOLD ME PUT MY HEART IN THE BAG AND NO BODY GETS HURT NOW I AM RUNNING FROM YOUR LOVE I AM NOT FAST SO I AM MAKING IT WORST NOW I AM DIGGING UP A GRAVE FROM MY PAST IMA WHOLE DIFFERENT PERSON ITS THE GIFTED THE CURSE BUT I CANNOT REVERSE ITTTT u not a legend if u dont know this song HELP I WILL GIVE BRAINLIST After biologist Rachel Carson published Silent Spring, the United Statesa.Supreme Court ruled in favor of migrant workers who boycotted grape growers.b.restricted the use of the pesticide DDT that caused bird deaths.c.Congress approved the Equal Pay Act which required many employers to pay men and women the same wages for the same job.d.Congress passed the Rehabilitation Act of 1973 outlawing discrimination by federal agencies against people with disabilities. I need help please. PLEASE PLEASE PLEASE HELP!Read the following discussion:JOHN:I loved Animal Farm. I thought it was a really greatcritique of the way patriotism blinds people to theabuses committed in their names by their leaders. Theythink they are doing their patriotic duty, but they arebeing taken advantage of.KARLIN:I didn't get that at all. I thought it was making a veryspecific point about the Cold War.LASHON:I think it's speaking more generally about the waypeople in power abuse those under them. Are yousaying, Karlin, that you don't think it's still relevant todayjust because the Cold War is over?KARLIN:I think it can still be relevant, but its primary point isabout the Soviet Union. Look at the class structure ofthe book, with the absolute power of those in charge,and the way the animals just agree to work extra forless food. They're nave in the same way Orwell wassaying Soviet citizens were. Don't you think?MARTA:I agree that he was making that point, but I think youhave to look more broadly too. His questioning ofpower structures was really radical. You can even applyhis ideas to our own society, with the way people voteagainst their own interests because their leaderspersuade them to do it. Look at your own government,Orwell was saying. That's why the book is so powerful.Which student is most clearly using evidence to support his orher opinion in this discussion?A. JohnOB. KarlinO C. MartaD. Lashon Can someone help, please??, thank youuu Why is it important that a protein keeps its shape?The shape of a protein keeps its amino acids from changing sequence.The shape of a protein keeps it from breaking up into loose amino acids.The shape of a protein allows it to perform several different jobs.The shape of a protein allows it to perform its particular job 1. Simplify (32m n ^ 2 +50m^ n n)-(10mn^ 2 -1b m ^ 2 n+64) Your friend has researched the biological classification of an organism. However, he mistakenly scrambled the order of the different classification groups. In addition, he cannot remember the common name of the organism. Your friend needs your assistance. The list below shows his notes. Reorganize the information in the correct order, beginning with the largest classification group and ending with the smallest. Use clues in the scientific names to predict the identity of the organism. Then conduct research to see whether your prediction is correct. Notes on Unknown Organism 1. Order Falconiformes 2. Genus Haliaeetus 3. Class Aves 4. Species leucocephalus 5. Domain Eukarya 6. Phylum Chordata 7. Family Accipitridae 8. Kingdom Animalia Really need help!! Dont understand:( 40 points If 100.0g of nitrogen gas (N2) is reacted with 100.0g of hydrogen gas (H2) what is the limiting and excess reactants? Hint: convert grams to moles for each reactant and then convert to moles of NH3. You need your balanced equation from answer 1 to determine the mole relationship between each reactant and the product NH3. Use the periodic table to determine the molar mass of all chemical formulas. Fill in the ? Blanks below to show your work.Please please please fill in the blanks...Molar mass of H2= ____ g/mol100.0g H2 1 mol H2/? g H2 ? Mol NH3/ ? Mol H2 = ? Mol NH3 Molar mass of N2= ? g/mol 100.0g N2 1 mol N2/ ? g N2 ? Mol NH3/ ? Mole N2 = ? Mol NH3 Molar mass of NH3 = ? g/mol 100.0g N2 1 mol N2/ ? g N2 ? Mol NH3/ ? Mol N2 ? g NH3/ 1 mole NH3 = g NH3 Pretty please help me :( PWEAASEEEEEEE Which would conserve more energy, if all humans ate only vegetables or ate only meat? Which shows how to add 6 + 4+ 5?6 = 6 and 4 + 5 = 91) 6+4 = 10 and 10 + 5 = 15