science, who ever answers this will get a brainlest

Answers

Answer 1

It’s the second one

Related Questions

the distance between two stations is 300 km.a train takes 5 hours to cover this distance. calculate the speed of the train.

Answers

Answer:

60 km/h

~16.7 m/s

Explanation:

speed= s1-s0/t1-t0

speed= 300-0/5-0= 60 km/h

60 km/h / 3.6 = ~ 16.7 m/s

Answer:

it is 60 kmh

Explanation:

it is 60 kmh because 300÷ 5=60

can you please mark brainly because i had it but for no reason someone deleted my answer and brainly took away my points

What two gases in the atmosphere do animals and plants need to breathe and grow?

Answers

Answer: Explanation:

Plants and animals each produce the gases that the other needs to live. Plants need carbon dioxide—people and other animals exhale carbon dioxide as a waste product. People and other animals need oxygen—plants produce oxygen during an important process called photosynthesis, which turns the sun's energy into nutrients.

Carbon Dioxide for plants and Oxygen for animals

How do atoms form a new substance? by gaining electrons from each other by losing electrons by losing neutrons to each other by sharing electrons with each other

(SCIENCE 8TH GRADE MIDDLE SCHOOL)

Answers

Answer:

A produces new substances by changing the way in which atoms are arranged. In a chemical reaction, bonds between atoms are broken and new bonds form between different atoms. This breaking and forming of bonds takes place when particles of the original materials collide with one another.

Answer:

When atoms combine to form a new substance, they are forming chemical bonds that bind them together. It is these bonds that define what is formed. ... A molecule is formed when two or more atoms join together chemically. If atoms combine that are of two or more different elements, we call that a compound

Explanation:

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

Answers

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 :)

Please can someone help me need help with these 5 questions!! and QUICK!

I need it done REALLLLLYYYYY soon!! (more like now but-)
(20 points for the answer to all of them)

Answers

Answer:

10. dependent as a change has occurred which has affected something else which is measurable.

11. dependent as a change is made to the environment this is why some species cannot live there as they have adapted to the climate.

12. Dependent due to change occurring it has resulted in the population decreasing which is measurable.

13. Dependent as the animal's and plants' survival is reliant on the environment.

14. Dependant as the plants require sunlight for photosynthies

Answer:

All are dependent

Explanation:

What is the answer to mgh =1/2 mv^2 + 1/5 mv^2 ???

Answers

Answer:

v = sqrt((10/7)gh)

Explanation:

The given equation is:

mgh = (1/2)mv^2 + (1/5)mv^2

To solve for v, we can start by simplifying the right side of the equation:

mgh = (7/10)mv^2

Dividing both sides by (7/10)mv^2, we get:

mgh / (7/10)mv^2 = 1

Multiplying both sides by (10/7)m/gh, we get:

v^2 = (10/7)gh

Taking the square root of both sides, we get:

v = sqrt((10/7)gh)

Therefore, the solution for v in terms of m, g, h is:

v = sqrt((10/7)gh)

In 2-4 sentences, summarize what you know about EM waves.

PLEASE HURRY! I'M TIMED! WILL GIVE BRAINLIEST!

Answers

Answer:

In physics, electromagnetic radiation refers to the waves of the electromagnetic field, propagating through space, carrying electromagnetic radiant energy. It includes radio waves, microwaves, infrared, light, ultraviolet, X-rays, and gamma rays.

I agree to what he said^

Usian Bolt ran his first 100 meter race in about 10 seconds and his second 100 meter race in about 8 seconds. What was his average speed in meters per second?

Answers

Answer:

9 seconds.

Explanation:

10+8=18. 18/2=9. the average is 9 seconds hope that helps

Answer: my answer is 8

what is the amount of protons, neutrons, and electrons in the atom to make water

Answers

Answer:

10 protons 8 neutrons 10 electrons

10 protons 8 electrons 10 neutrons

What do you do if a dog is chasing you?

Answers

Answer:

run.

Explanation:

Answer:

The first thing to do if a dog charges you is to remain calm.

If the dog is trying to bite you, try and block the attack with something you have on you.

If the dog is large enough to push you over, tuck yourself up into a ball and clasp your hands around the back of your head

If the dog bites and holds, je.rking away can damage you more than if you stay in position. Remember to stay calm.

If you have the chance to run, try to get somewhere out of reach of the dog.

If you are near playground equipment, climp out of reach of the dog.

Students are investigating the rocks with fossil markings that are found in an area that was once covered by a lake. The rocks they are observing are MOST likely —
igneous
metamorphic
sedimentary
thermic

Answers

Answer:

sedimentary rock

Explanation:

The rocks they are observing are MOST likely sedimentary. The correct option is C.

What is sedimentary rock?

Sedimentary rock is one of the three main types of rock formed on Earth (the others being igneous and metamorphic rocks). It is formed by the accumulation and solidification of sediment, which is any material that is transported by wind, water, or ice, and eventually deposited on the Earth's surface. This can include particles of minerals, rocks, and organic matter.

Over time, these sediments are buried and subjected to pressure and compaction, which causes them to become more tightly packed and solidified. The weight of the overlying layers can also cause the sediment to undergo cementation, where minerals dissolved in water between the particles precipitate and bind them together. As the sediment becomes more compacted and cemented, it eventually becomes a solid rock.

Sedimentary rocks are often characterized by their visible layers or strata, which can contain fossils and provide a record of past environmental conditions. They are also important sources of natural resources, such as coal, oil, and natural gas, as well as many of the minerals and building materials used in construction. Some common examples of sedimentary rocks include sandstone, shale, and limestone.

Here in the question,

Sedimentary rocks are formed from the accumulation and consolidation of sediment, often containing fossils. The fact that the area was once covered by a lake supports the idea that the rocks would have been formed from sediment deposited in the lake. Therefore, option C is the most likely and correct choice.

Igneous rocks are formed from molten magma and do not typically contain fossils. Therefore, option A is not correct.

Metamorphic rocks are formed from preexisting rocks that are altered by heat and pressure. They also typically do not contain fossils. Therefore, option B is not correct.

Thermic is not a commonly used term in geology, so option D is not a valid choice.

Therefore, The correct option is C. sedimentary.

To learn more about Metamorphic rocks click:

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i) What happens to bulb X?
ii) What happens to bulb Y?
Refer Picture

Answers

Answer: (I) goes out

(ii)gets bright

Explanation:

i goes out and ii gets bright

Compare and contrast Continental Drift and Plate Tectonics.
1. what are 4 things that both Continental Drift and Plate Tectonics have in common?
2. What are 4 things that only continental drifts have?
3. What are 4 things that plate tectonics only have?

Answers

Answer:

1. They both have a natural relationship with friction and temperature along with psychics 2. they all have different natural bioms

Explanation:

why some materials allow to flow more easily than others

Answers

Answer:

Explanation: Typically, atoms are 'reluctant' to let go of their electrons, and this makes them bad conductors, and more like insulators. However, some atoms have their electrons bound loosely, and electricity can flow easily, make these types of atoms best of conducting electricity.

Answer: Bc some have more density than others

Explanation:

Ellen does an experiment by releasing a ball from a height of 1 m above each floor in a tall building. She records the time it takes the ball to reach the floor.

Which question is Ellen most likely investigating?

How does distance affect the gravitational force on objects?
How does distance affect the electromagnetic force on objects?
Does height affect the strong force acting on a moving ball?
Does height affect the weak force acting on a moving ball?

Answers

Answer:

The question that Ellen most likely investigating is "How does distance affect the gravitational force on objects?"

Explanation:

Answer is A because I got the question right

By heating a liquid and measuring the temperature at which it boils, what is being measured?

a chemical property

a molecular property

an atomic property

a physical property

Answers

Answer:

Explanation:

What does it mean that energy cannot be created or destroyed?
A. Potential energy cannot be transformed into kinetic energy
B. Energy can only be transformed
C. Kinetic energy cannot be transformed into kinetic energy
D. Kinetic energy cannot be transformed into potential energy

Answers

Answer:

Explanation:

the reason this is right is because kinetic energy cannot become potential because kinetic is the when something is moving like a roller coaster going down a ramp but it can be converted into it

pls give brainlist pls me a lot

B

Energy cannot be created or destroyed, but it can be transferred and transformed. There are a number of different ways energy can be changed, such as when potential energy becomes kinetic energy or when one object moves another object.

Using the knowledge you have about electricity, what invention would you create to provide electricity for those third world countries who need it? Post a picture of your invention listing the significance. If you have a country specifically in mind this could help please list that country, as well.

Answers

Answer:

I would recomend stuff like in one of Mark Rober's videos about a $1.00 microscope and centrifuge.

Explanation:

Harvard is working on cheap ways to allow third-world countries to have these types of machines without the need for electricity.

listen up time to pick a president for brainly

here are the candets

anaxx

keonn

zariahbennett

gerbis

Answers

Gerbis because his name sounds like gerbil

Hii! please answer this and have a nice day. :)
no bots please.
unrelated answer = report
unrelated comment = report
What is the net force in this image?
A. 15 N
B. 35 N
C. 250 N
D. -15

Answers

Answer:

Explanation:

What has to happen for these atoms/molecules to change from one state of matter to another? *view attachment*

Answers

Answer:Thermal energy is added or transferred

Explanation:

The answer is the third option

If a liquid is heated and the temperature at which it boils is measured, the _____ property is being measured.

molecular

atomic

chemical

physical

Answers

Answer: atomic think so

Explanation:

Answer:

Physical.

Explanation:

It is physical because atomic is dealing with something with the elements constructing the substance. Molecular is similar. Chemical is changing the chemical makeup of a substance. So through the process of elimination, it is physical.

Match the Vocabulary terms with their definitions.

Answers

Answer:

1. convert=cause to change in form, character, or function

2. energy conversion=the process through which energy is changed into forms that are useful to humans

3. energy transformation=energy is changed from one form to another

4. energy can neither be created nor destroyed, it can only change forms. the amount of energy stays the same. energy in= energy out

I think it is1-4,2-3,3-2,4-1

Which of the following forces has not changed Earth's surface?

folding
erosion
weathering
gravity

Answers

Answer:Gravity is the force among the options listed that has not directly changed Earth's surface.

Explanation:

Gravity is a fundamental force that acts on all objects with mass, including the Earth itself, but it does not cause changes or modifications to the Earth's surface features. Instead, gravity influences the movement of materials and the shape of the Earth's surface by exerting a pulling force on objects. On the other hand, folding, erosion, and weathering are all processes that directly contribute to shaping

The answer is D. Gravity

if two objects with different masses (larger and smaller) are about to fall from the same height, which one will have the greatest potential energy? Why?

Answers

Answer:

they one with more mass

Explanation:

the greater the mass an object has the more inertia it has, making the amount of potential energy greater.

If two objects with different masses (larger and smaller) are about to fall from the same height, the object with the larger mass would have the greatest potential energy because the potential energy is the product of the mass of the object, acceleration due to gravity, and height.

What is mechanical energy?

Mechanical energy is the combination of all the energy in motion represented by total kinetic energy and the total stored energy in the system which is represented by total potential energy.

Potential energy = mgh

As given in the problem height is the same, and acceleration due to gravity is constant, So the object which has the larger mass would have the greater potential energy.

Thus, the object with the larger mass would have the greatest potential energy because the potential energy is the product of the mass of the object, acceleration due to gravity, and height.

Learn more about mechanical energy from here,

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Match the correct sentence together.

Questions:
10 pounds 20 feet =
37 pounds 10 feet =
29 newtons 10 meters =
30 newtons 2 meters =

Answers:
200 foot-pounds
60 newton-meters
290 newton-meters
20 foot-pounds
370 foot-pounds

Answers

I’m pretty sure you times them so 1 with A, 2 with e, 3 with C, and 4 with B

You multiply each of them by each other so the answers are 1 - A, 2 - D, 3 - C, 4 - B

2. hlep ={

Which of these are examples of negative tropism? (Select all that apply.)

a plant’s stem growing upward out of the ground due to gravitropism

a plant’s leaves growing away from the sunlight due to phototropism

a plant’s roots growing toward a water source due to hydrotropism

a plant’s roots growing away from a water source due to hydrotropism

a plant’s leaves growing toward the direction of the sun due to phototropism

a plant’s roots growing down into the soil due to gravitropism

Answers

Answer:

Explanation:

Which effect is created when two sound waves that are close in pitch
interact?
O A. Echoes
O B. Loudness
C. Beats
O D. Intensity

Answers

Answer:

C. Beats

Explanation:

When waves are interfering with each other, the sound is louder in some places and softer in others. As a result, we hear pulses or beats in the sound.

Answer:

beats

Explanation:

got it right

please help no trolls no links pls
How does changing the mass of a wheelchair affect its velocity?

Answers

It would move slower/ faster by changing the mass, which would effect the weight and speed.

if it’s mass is heavier it will need more force to travel, making its velocity slower

Please help! I’ll give Brainliest

Answers

9.8 is correct because that’s how long it takes the ball to hit the ground

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What is the value of x when In(x) =0 what was the primary purpose of the cash and carry policy the lend lease act and other similar policies You are called by Tim Duncan of Spurs Co. on July 16 and asked to prepare a claim for insurance as a result of a theft that took place the night before. You suggest that an inventory be taken immediately. The following data are available.Inventory, July 1 $41,010Purchases-goods placed in stock July 1-15 90,490Sales revenue-goods delivered to customers (gross) $119,400Sales returns-goods returned to stock $3,960Your client reports that the goods on hand on July 16 cost $33,210, but you determine that this figure includes goods of $7,170 received on a consignment basis. Your past records show that sales are made at approximately 40% over cost. Duncan's insurance covers only goods owned.Compute the claim against the insurance company. A piece of construction equipment will cost $6,000 new and will have an expected life of 8 years, with no salvage value at the end of its life. The disbursements for taxes, insurance, maintenance, fuels, and lubricants are estimated to be $1,500 for the first two years, $1,700 for the third, $1,900 for the fourth, and will continue to increase by $200 each year thereafter. a) Draw a fully labelled diagram to represent this cash flow. b) What is the equivalent Future Cost (FW) of this piece of equipment if the rate of interest is 12% ? Which property of equality is shown below?If:19 + W = -31Then:19 + W + 73-31 + 73Addition Property of EqualitySubtraction Property of EqualityMultiplication Property of EqualityDivision Property of Equality Redeker Company purchased equipment on January 1, 2016, for $90,000. It is estimated that the equipment will have a $5,000 salvage value at the end of its 5-year useful life. It is also estimated that the equipment will produce 100,000 units over its 5-year life. 16,000 units of product are produced in 2016 and 24,000 units are produced in 2017. Instructions: Compute the amount of depreciation expense for the year of 2016 and 2017 using the units-of-activity depreciation method. The amount of depreciation expense for the year of 2016 using the units-of-activity depreciation method is A process is in control and centered at nominal. Output from the process is normally distributed and the process capability index, Cp, equals 1.02. Determine the expected number of nonconforming units that will result from a production run of 20,000 units. Assume that all previously stated conditions regarding the process remain as described during the production run of 20,000 units. a parent of a child who has been taking valproic acid (depakote) for several years calls the clinic to report a recent recurrence of seizures and states that the child is having three or four seizures per week. the nurse will perform which action first? a company bought a new machine for its warehouse on january 1. whats the book value of the new machine on december 31. paid $10,000 in cash. financed the rest of the purchase price What is shap of the earth. L-18W-21H-16PLEASE HELP!grade-6 You witness a car accident in which one of the people has a piece of glass embedded in his right eye. There is a first aid kit available in your vehicle. What do you do?. please help! this is due my today and i don't understand it A rectangular box without a lid is to be made from 12 m ofcardboard. Find the maximum volume of such box using the methodof Lagrange's multiplier. Who find the sum of integers from 1 to 100? 500g to 0.4kg as a ratio help pls, rewarding crownHow was Neoclassical architect Thomas Jefferson inspired by Classical architecture when planning his plantation home Monticello? Two photographs, Monticello in Charlottesville, Virgi nia, and The Pantheon, in Rome He constructed it using concrete for unobstructed interior views.He used a similar portico, columns, and dome.He included relief sculptures of Roman gods in the pediment.He used an asymmetric plan with complex features. Why was african slavery introduced to the americas brainly. a cyclist covers a distance of 750m in 2 min 30sec what is the speed in km/hr of the cyclist? Find the x-intercept and the y-intercept from the following linear equation: 5x + 3y = 15 x-intercept ([?], []) y-intercept ([] [])