Chemistry Middle School

Which of the following is the best example of kinetic energy?

Group of answer choices

A pitcher preparing to throw a ball

A bowling ball rolling toward the pins

A runner in position at the start line

A horse standing in an open field

Answers

Answer 1
A bowling ball rolling toward the pins because kinetic is any moving thing
Answer 2

Answer:

A bowling ball rolling toward the pins

Explanation:

Kinetic energy is when an object is in moving or kinetic energy is when it has moving energy.

Related Questions

True or False. Dead plants and animals keep the savanna healthy by depositing nutrients into the soil as they decay.

Answers

True True True True True True True
True the nutrients keeps the savanna healthy

Descride Three ways that people can conserve natural resources?

Answers

Answer:

1. Reuse things like cups, towels, cloths, etc.

2. Plant a tree. (Trees and other organic energy sources are traditional sources of renewable energy.)

3. When using natural resources, only use the necessary amount so you're not wasting any.

Hope this helps!!

1. don’t waste things! turn off lights when you leave the house, don’t leave the water running while brushing your teeth.

2. do something for the environment! plant some flowers or pick up trash when you see it.

3.

If a substance has a density of 19 g/cm3, then what is the mass of 8 cm3 of this substance?

Answers

The mass is 2.375 grams
The mass is 3.375 grams

Note: Enter your answer and show all the steps that you use to solve this problem in the space provided.

Solve the inequality. Explain all steps and identify the properties used.


n−3+5>4

Answers

Answer:

hmm mm?mmmmmmmmmmmmm

Answer:

n-3+5>4

n>4+3-5

n>2

I think

What is similar about how floodplains and alluvial fans form? What is different?

Answers


an alluvial fan is formed as a stream begins to cut into its floodplain. a delta forms in mountainous areas, alluvial fans on flat land. a delta forms while entering water, an alluvial fan forms on dry land.
Oh i remember and i can give you the answer, i learnt this is 6th grade lol

What type of person studies and collects data on the weather?

Answers

The answer would be a Meteorologist
Meteorologist is a person who studies and collects data

In the Everglades, a heron has relationships of predation with different organisms. Choose the organism in the food web that represents the heron’s prey.

In the Everglades, a heron has relationships of predation with different organisms. Choose the organism

Answers

The carp. The arrow that points towards the heron means that animal is what the heron eats.

Do you think rayon when burnt will stick to the body like other synthetic fibers?

Answers

In other words, since rayon is made from the plant fiber it does not get stick to our body while we burn it
it will not stick to the body most likely

2. Which process invovles the removal of rock particle by wind, water, ice, or gravity?
A. oxidation
B. chemical weathering
C. erosion
D. physical weathering

Answers

Erosion is the movement of rock particles by wind, water, ice, or gravity,
the correct answer is C hope this helps

Which of the following are sources of biomass? wood the Sun manure water paper

Answers

Answer:

I am pretty sure that the following sources of biomass are wood, manure, paper, and water but water is 50% of biomass so I don't know if I would claim it as a source, also the sun. So it is pretty much all of them.

Is the size of the country an important factor in how much helium that can be found there?

Answers

Brainless pls

Explanation:

Accordingly, any attempt to determine where the helium market will be more than a few years ... and/or recover helium can reduce the amount of helium consumed by as much as a factor ...

Answer:

Explanation:

Accordingly, any attempt to determine where the helium market will be more than a few years ... and/or recover helium can reduce the amount of helium consumed by as much as a factor..

Which noble gases can form compounds and under what conditions? Give EXAMPLES

Answers

Answer:

Following

Explanation:

Which of these would happen to the cell if cellular respiration stopped?

Answers

Answer:

The thing which would happen to a cell if cellular respiration suddenly ceased bis:

C. Glucose breakdown would nearly stop or cease entirely.

Explanation:

Answer:

I answered this question before. U didn't give use the answer choices but it would be B.

Explanation:

Cellular respiration includes glycolysis that occurs on the cytoplasm of cells and Krebs cycle that occurs in the matrix of the mitochondria. The whole cellular respiration metabolic pathway produces a net of 36 ATPs (glycolsys produces a net of 2 ATPS and Krebs cycle a net of 34 ATPS). They use glucose as a substrate to harness the energy in its chemical bonds to produce the store this energy in ATPs, the energy currency of cells.

SpongeBob noticed that his favorite pants were not as clean as they used to be. His friend, Sandy, told him that he should try using Clean-O detergent, a new brand of laundry soap she found at Sail-Mart. SpongeBob made sure to wash one pair of pants in plain water and another pair in water with the Clean-O detergent. After washing both pairs of pants three times each, the pants washed in the Clean-O detergent did not appear to be any cleaner than the pants washed in plain water. 1) What was the problem SpongeBob wanted to investigate? 2) What was the problem SpongeBob wanted to investigate? 3) What is the dependent variable? 4) What should be SpongeBob’s conclusion?

Answers

Answer:

1) SpongeBob investigated whether Clean-O detergent is a good laundry soap. 3) the dependent variable is the color of the pants/how clean the pants were. 4) SpongeBob's conclusion should be that Clean-O detergent is not a good detergent.

Explanation:

You didn't have #2 - it was the same question as #1

Answer:

Hi there!

Explanation:

Questions;

1) He wanted to investigate if clean-o detergent will clean his pants....

2) The independent variable is what the pants were washed in (clean-o detergent)....

3) The dependent variable is, how clean the pants were after washing them...

4) The conclusion should be, the detergent that his friend sandy had told him.. Didn’t work & Clean-o detergent didn’t work any better than plain water.

Hope this helps!

~Have a great day!~

If you have any questions, feel free to ask!

How does the behavior of the substances depends on their structures at atomic and molecular levels?
PLIS ANSWER ASAP

Answers

It just does tbh and that’s why it happens that way.
At the most basic level, systems and processes depend on physical and chemical processes. The structure and properties of matter influence the systems and processes containing that matter. Systems and processes also can be understood in terms of interactions, including forces between objects and transfers of energy.

help pls i will give brainlest

help pls i will give brainlest

Answers

Answer: its 5ft tall and 12 inches

Explanation:

The answer is 5 foot 12 inches

How can you help your muscles stay healthy?
No links, If right I will mark Brainliest.

Answers

Explanation:

Keeping your muscles healthy will help you to be able to walk, run, jump, lift things, play sports, and do all the other things you love to do. Exercising, getting enough rest, and eating a balanced diet will help to keep your muscles healthy for life.

You can always start off by maintaining a good diet. Eating more healthy but still 3 times a day. Then do at least 10mins of exercise a day. After a week try 20mins then 30 mins a day. Always have a good sleep schedule!

Will give brainly! How was the ancient idea of elements similar to what we now know about elements, and how was it different?

Answers

Answer:

elements in the elements now are different end of story

In ancient times the elements meant : water, fire, earth, and air. However the modern definition of elements is a pure substance that cannot be broken down into a simpler substance.

Please help with questions 11-13! I’ll give brainliest

Please help with questions 11-13! Ill give brainliest

Answers

Answer:
11- 3
12- 4
13- 2
Answer:
11- 3
12- 4
13- 2 hope this helps

What was one was one important impact of Supreme Court's ruling in Bush v. Gore

What was one was one important impact of Supreme Court's ruling in Bush v. Gore

Answers

Answer: the answer is b or c

Explanation:

I took it

The answer is C, i took that test before and got it right

At which stage is glucose broken into smaller molecules? before cellular respiration begins during the first stage of cellular respiration during the second stage of cellular respiration at the end of cellular respiration

Answers

Answer:

b

Explanation:

Answer:

its b

Explanation:

name and the number of atoms of calium oxide in one molecule of the compound for

pls help I am dead if I dont do it for 2 min

Answers

Answer:

1 calcium, 2 oxygen and 2 hydrogen makes for a total of 5 atoms in 1 molecule.

Explanation:

Don’t know really sorry

To make a 450g solution with a mass by mass concentration of 7%, how much salt and water do you need to mix?

Answers

Answer:salt: 31. 5g

water: 418. 5g

Explanation

Answer:

salt: 31. 5g

water: 418. 5g

Explanation:

The Bohr atomic model suggests that:

Electrons randomly orbit the nucleus.
The atom is made mostly of space.
Protons and neutrons occupy energy shells.
Gamma rays can can be used to split atoms.

Answers

The answer is...
Electrons randomly orbit the nucleus

Answer:

B. The atom is made mostly of space.

Explanation:

This is what I got on my work the other one was wrong for me and B. was right on my work. hope this help some one

Based on the diagram above, nitromethane has a chemical formula of CH
______ _____

NO LINK ANWERS
This is a fill in the blank question, there is no word bank

Based on the diagram above, nitromethane has a chemical formula of CH______ _____NO LINK ANWERSThis is

Answers

Answer:

Nitromethane, sometimes shortened to just Nitro, is an organic compound with the chemical formula CH

3NO

2. It is the simplest organic nitro compound. It is a polar liquid commonly used as a solvent in a variety of industrial applications such as in extractions, as a reaction medium, and as a cleaning solvent. As an intermediate in organic synthesis, it is used widely in the manufacture of pharmaceuticals, pesticides, explosives, fibers, and coatings.[12] Nitromethane is used as a fuel additive in various motorsports and hobbies, e.g. Top Fuel drag racing and miniature internal combustion engines in radio control, control line and free flight model aircraft.

Explanation:

Preparation

Nitromethane is produced industrially by combining propane and nitric acid in the gas phase at 350–450 °C (662–842 °F). This exothermic reaction produces the four industrially significant nitroalkanes: nitromethane, nitroethane, 1-nitropropane, and 2-nitropropane. The reaction involves free radicals, including the alkoxyl radicals of the type CH3CH2CH2O, which arise via homolysis of the corresponding nitrite ester. These alkoxy radicals are susceptible to C—C fragmentation reactions, which explains the formation of a mixture of products.[12]

Laboratory methods

It can be prepared in other methods that are of instructional value. The reaction of sodium chloroacetate with sodium nitrite in aqueous solution produces this compound:[13]

ClCH2COONa + NaNO2 + H2O → CH3NO2 + NaCl + NaHCO

help me with this I only have one more
1156 g/L
= ________ kg/mL

Answers

The Answer is 0.001156.

To convert g/L to kg/mL, we need to divide the value of g/L by 1000. Therefore:
1156 g/L = 1.156 kg/L
Since 1 L is equal to 1000 mL, we can convert kg/L to kg/mL by dividing by 1000:
1.156 kg/L = 1.156/1000 kg/mL
1.156/1000 kg/mL = 0.001156 kg/mL
Therefore, 1156 g/L is equal to 0.001156 kg/mL.

How do matter and energy move through an ecosystem?

My scientific explanation is:

Your answer should include at least 1-2 complete sentences to explain the claim, evidence and reasoning.
Be sure to check your grammar and spelling.
Use the Sentence Starter to help you:

Matter and energy move through an ecosystem by...

Answers

Answer:

Decomposers (organisms that break down dead producers and consumers and organic waste) obtain the energy they need to live from chemical bonds of the dead and waste-matter. The energy is transferred both to the decomposer (for growth and development) and to the ecosystem (as heat energy)

Explanation:

Yea he’s right he got the answer

https://ny.pbslearningmedia.org/resource/nvslos-sci-cynthiaerenas/wgbh-nova-secret-life-of-scientists-and-engineers-cynthia-erenas/
1. What skills can young engineers develop now that will help them in the future?
2. How do STEM classes and robotics clubs help students become career engineers?

Answers

Answer: Young engineers will learn how to problem solve, they will learn how to use creativity, and Critical thinking. STEM classes and robotics clubs help students become career engineers because it teach's things you will have to know to become a engineer in the future.

When the speed of the bottle is 2 m/s, the KE is kg m2/s2. When the speed of the bottle is 3 m/s, the KE is kg m2/s2. When the speed of the bottle is 4 m/s, the KE is kg m2/s2. When the speed of the bottle is 5 m/s, the KE is kg m2/s2. When the speed of the bottle is 6 m/s, the KE is kg m2/s2.
instructions
In this part of the experiment, you will be changing the speed of the bottle by dropping it from different heights. You will use the same mass, 0.250 kg, for each trial, so record this mass in Table B for each velocity. Then, calculate the expected kinetic energy (KE) at each velocity. Use the formula KE = mv2,
where m is the mass and v is the speed. Record your calculations in Table B of your Student Guide.

Answers

Answer:

Based on the given instructions, you need to calculate the expected kinetic energy (KE) at each velocity using the formula KE = mv^2, where m is the mass and v is the speed. The mass is given as 0.250 kg.

Table B: Calculation of Kinetic Energy (KE)

Table B: Calculation of Kinetic Energy (KE)

Speed (m/s)Mass (kg)KE (kg m^2/s^2)20.2500.50030.2500.75040.2501.00050.2501.25060.2501.500

To calculate the kinetic energy at each velocity, multiply the mass (0.250 kg) by the square of the velocity.

For example, when the speed of the bottle is 2 m/s: KE = (0.250 kg) * (2 m/s)^2 = 0.250 kg * 4 m^2/s^2 = 1.000 kg m^2/s^2

Perform similar calculations for the other velocities and record the results in Table B.

Answer:

Explanation:mass of the bottle in each case is M = 0.250 kg

now as per given speeds we can use the formula of kinetic energy to find it

1) when speed is 2 m/s

kinetic energy is given as

2) when speed is 3 m/s

kinetic energy is given as

3) when speed is 4 m/s

kinetic energy is given as

4) when speed is 5 m/s

kinetic energy is given as

5) when speed is 6 m/s

kinetic energy is given as

Help me out, please.

Help me out, please.

Answers

Answer:

I'm going to have to say A

Explanation:

I think it’s A. Jdjdnd
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