ANSWER FAST PLEASE
Maria’s class has learned how to drop an egg without breaking it. After 0.2 s, the kinetic energy of the falling egg is 0.5 J. If its mechanical energy is 2.3 J, what is its potential energy?

A. 1.2 J
B. 1.8 J
C. 2.8 J
D. 4.6 J

Answers

Answer 1
2.8 J

this is a right answer helpful

Answer 2

The Potential energy of the body is 11.8 Joules

The mechanical energy of the egg is given by the formula:

Mechanical energy = Potential energy + kinetic energy

Given the following parameters;

Mechanical energy = 2.3 JoulesKinetic energy = 0.5 Joules

From the formula:

Potential energy = ME = KE

Potential energy = 2.3 - 05

Potential energy = 1.8 Joues

Hence the potential energy of the body is 11.8 Joules

Learn more on mechanical energy here: https://brainly.com/question/24443465


Related Questions

which two is it if u get it correct u get brainlist

Answers

I think B and C. Please reply me if I am correct.

Answer:

The answer is D and B

Explanation:

It is a quanity because it is because it is being measured in terms of numerical information.

Its is also continuous beause it does not show random change in the mathmatics, it it a slow yet constant change of measurement.

I'm not sure which category this is. But please help me on this!!

Two piles of heavy boxes must be lifted onto a shelf. Each pile has 20 boxes and each box is the same size and weight. Tom and Claudia are each responsible for a pile. Tom lifts each box straight up from the pile to the shelf. Claudia places a long, gradual ramp that leads from the pile to the shelf. She pushes each box up the ramp until it rests on the shelf.

(Tom used more force.)

Compare the distance each person moved each box. Who moved the boxes a longer distance?

Answers

Answer:

Tom

Explanation:

Simply because we see Claudia used a shortcut. Tom uses more physical force than Claudia, since Claudia only had to push the boxes into there required shelves.

Explain in steps how to find volume of a rock that is not rectangular water displacement

Answers

But bsjsjsksjsjshsjhdd

If measurements are made, then they are more precise on a larger scale.?

Answers

Answer:

No.

Explanation:

According to the formula б/X=б/√n, as more measurements are made, the uncertainty gets smaller.

Can someone explain cellular respiration?

Answers

Answer:

Explanation:

set of metabolic reactions and processes that take place in the cells of organisms to convert chemical energy from oxygen molecules[1

hey Google please how what types of elements are crop in P block right with example​

Answers

Answer:

The elements of groups 13, 14, 15, 16, 17, 18 are called p block elements.examples: boron (B), aluminium (Al), gallium (Ga), indium (In), thallium (Tl),and so on

Explanation:

How do we exist? What does scientific evidence suggest about the start of the universe?

Answers

Answer:

It all started with the big bang.

The big bang is how astronomers explain the way the universe began. It is the idea that the universe began as just a single point, then expanded and stretched to grow as large as it is right now (and it could still be stretching).

identify the PowerHouse of a cell
A. Golgi
B. lysosome
C. ribosomes
D. nucleus
E. mitochondrion
F. cytoplasm
G. rough endoplasmic reticulun
H. membrane

Answers

MITOCHONDRIA!!!! (E)

4. A 100.0 mL sample of 0.2516 M aqueous barium chloride was treated with an excess of sulfuric acid. The
resulting barium sulfate precipitate was filtered, dried, and found to have a mass of 4.9852 g. Compute the
percentage yield of barium sulfate in this process.

Answers

I wish I can help but I need help with the same one

the neuron of the basic unit of structure and _____of the nervous system

I NEED THIS ASAP

thank you

Answers

Answer:

with out answer choices i will assume dendrites

Explanation:

Based on the oxidation states of the atoms in this reaction, answer the questions. 4Fe(0) + 3O2(0) → 2Fe2(3+)O3(2-) How many electrons does the iron half-reaction lose? How many electrons does the oxygen half-reaction gain? What is the total number of electrons that are moved in this oxidation-reduction reaction?

Answers

Answer:

Twelve electrons

Explanation:

If we look at the product side, we will notice that iron lost twelve electrons and oxygen gained twelve electrons.

Hence, we have 4Fe^3+ and 2O3^2- showing twelve electrons lost/gained.

Answer:

How many electrons does the iron half-reaction lose?

12

How many electrons does the oxygen half-reaction gain?

12

What is the total number of electrons that are moved in this oxidation-reduction reaction?  12

Explanation:

A 2.400-g sample of meat is subjected to Kjeldahl analysis. The liberated NH3(g) is absorbed by adding 50.00 mL of H2SO4(aq), which is more than enough. This occurs through the reaction 2NH3(g)+H2SO4(aq)→(NH4)2SO4(aq) The excess acid requires 19.90 mL of 0.5510 M NaOH for its complete neutralization.

Answers

Answer:

51.04% of protein in the sample

Explanation:

The question is the percentage of protein in the sample and the acid is 0.2496 M  H2SO4.

First we need to calculate the moles of sulfuric acid that react:

Moles of sulfuric acid added:

0.0500L * 0.2496mol/L = 0.01248 moles of sulfuric acid.

Moles in excess:

0.01990L * 0.5510mol/L = 0.01096 moles NaOH * (1 mol H2SO4 / 2 moles NaOH) = 0.00548 moles of sulfuric acid.

Moles that react:

0.01248 moles - 0.00548 moles = 7.0x10⁻³ moles of H2SO4 react.

Based on the reaction, the moles of NH3 = Moles of N are:

7.0x10⁻³ moles of H2SO4 * (2moles NH3 / 1 mole H2SO4) = 0.014 moles NH3 = Moles N

The mass of nitrogen (Molar mass: 14g/mol):

0.014 moles N * 14g/mol = 0.196g of N.

The percentage of N is:

0.196g N / 2.400g = 8.17% of N

6.25 times the percentage of nitrogen is the percentage of protein:

8.17%*6.25 =

51.04% of protein in the sample

You have a graduated cylinder with 10 mL of water in it.
You add 300 g of lead weights, and the volume of the
water rises to 40 mL. What is the density of the lead?

Answers

Answer:

The answer is 10 g/mL

Explanation:

The density of a substance can be found by using the formula

[tex]density = \frac{mass}{volume} \\[/tex]

From the question

mass = 300 g

volume = final volume of water - initial volume of water

volume = 40 - 10 = 30 mL

We have

[tex]density = \frac{300}{30} = \frac{30}{3} \\ [/tex]

We have the final answer as

10 g/mL

Hope this helps you

An agronomist hypothesized that add ran intots
the growth of Bermuda grass seedlings. He
planted three samples of grass and watered each
with a different pH solution.
How did plant growth in the pH 3.1 group compare
to plant growth in the other groups?

Answers

Answer:

D

Explanation:

Answer:

1. D

2. A

Explanation:

Which surface will most likely cause a rolling ball to slow down?A.grassB.iceC.tile

Answers

Answer:

grass

Explanation:

ice and tile are smooth and without any bumps or large ridges, unlike grass which is spiky and flexible. grass will most likely slow down a ball that is rolling, unlike answer choices B and C.

Answer:

grass

Explanation:

ice and tile are bothe a flat surface where grass has texture

What is aluminum found in or used for? plz dont look it up

Answers

Answer:

Aluminum isn't found pure naturally, but its found mixed with other minerals in the earth. It's used to make cans, foil, kitchen utensils, window frames and even deodorant

Explanation:

Determine what elements are denoted by the following electron configurations:

1s22s22p63s23p4s23d104p65s1

Answers

Answer:

Electron Configurations - Solutions

Note: The electron configurations in this worksheet assume that lanthanum (La)

is the first element in the 4f block and that actinium (Ac) is the first element in the

5f block. If your periodic table doesn’t agree with this, your answers for elements

near the f-orbitals may be slightly different.

1) sodium 1s2

2s2

2p6

3s1

2) iron 1s2

2s2

2p6

3s2

3p6

4s2

3d6

3) bromine 1s2

2s2

2p6

3s2

3p6

4s2

3d104p5

4) barium 1s2

2s2

2p6

3s2

3p6

4s2

3d104p6

5s2

4d105p6

6s2

5) neptunium 1s2

2s2

2p6

3s2

3p6

4s2

3d104p6

5s2

4d105p6

6s2

4f145d106p6

7s2

5f5

6) cobalt [Ar] 4s2

3d7

7) silver [Kr] 5s2

4d9

8) tellurium [Kr] 5s2

4d105p4

9) radium [Rn] 7s2

10) lawrencium [Rn] 7s2

5f146d1

11) 1s2

2s2

2p6

3s2

3p4

sulfur

12) 1s2

2s2

2p6

3s2

3p6

4s2

3d104p6

5s1

rubidium

13) [Kr] 5s2

4d105p3

antimony

14) [Xe] 6s2

4f145d6

osmium

15) [Rn] 7s2

5f11 einsteinium

16) 1s2

2s2

2p6

3s2

3p6

4s2

4d104p5 not valid (take a look at “4d”)

17) 1s2

2s2

2p6

3s3

3d5

not valid (3p comes after 3s)

18) [Ra] 7s2

5f8

not valid (radium isn’t a noble gas)

19) [Kr] 5s2

4d105p5 valid

20) [Xe] not valid (an element can’t be its own electron configuration)

Draw arrows for all of the attractive and repulsive forces between the negatively charged electrons and positively charged protons in these atoms. Make sure your arrows clearly show the difference between attractive and repulsive forces. Note that the particles without a charge label are neutral.

Answers

Answer:

Attraction

(e-) ---> <--- (H+)

Repulsion:

<---(e-) (e-)-->

Neutral:

(e-)       (Helium)

Explanation:

Accordingly to coulomb's law:

In the attraction, the hydrogen without an electron has a positive charge and needs to be fulfilled with a negative charge found in an eletron.

In the repulsion, both electrons has the same charge and repulse each other.

In the neutral case, the Helium is highly stable therefore the electron is not attracted.

Which statement best explains why heating a liquid affects its viscosity?
O The molecules move faster at higher temperatures and overcome attractions more easily.
O The molecules move faster at higher temperatures, and the attractions between them increase.
O The molecules move slower at higher temperatures and overcome attractions more easily
The molecules move slower at higher temperatures, and the attractions between them decrease.

Answers

Answer:

A

Explanation:

took test I'm pretty sure and found respond else where

Answer:

A) The molecules move faster at higher temperatures and overcome attractions more easily.

Explanation:

Edg 2020

what is a group that does not change and represents a normal pattern of response

Answers

Answer:

Constant

Explanation:

Trust

How many atoms are in 0.250 moles of Rb?

Answers

Answer:

1.51*10^23 atoms Rb

Explanation:

Use dimensional analysis

Express the following as a whole number or as decimals: 3.5 x 10-3 m

Answers

Multiply
10.3
by = 36.05m
3.5

.

what is the heat of reaction H2 + 1/3N2 2/3NH3

Answers

Answer:

Please see the attachment:

How do I write the following :


One atom of Nitrogen
Five atoms of Nitrogen
One molecule of Nitrogen
Five molecules of Nitrogen

One molecule of Sulfur
One atom of Sulfur
Eight molecules of Sulfur

Answers

Answer:

Five molecules of nitrogen and eight molecules of sulfur

Explanation:

What are two substances that are useful because of their viscosity? (Please describe why they are useful)

Answers

Answer:

The two substances are Grease and Oil.

Explanation:

- Grease is used for other lubrication outside of the engine when it is really cold.

- Oil is used for lubricating when your engine is really hot.

a drop of water has a volume of about 0.05 mL. How many molecules of water are in a drop of water?

Answers

Answer:

20 drops

Explanation:

15 Each Points Please Help ASAP!! View Attached Image!! Will Mark Brainliest If All Are Answered!!

Answers

Answer:

Questions 1 is Letters

Questions 2 is H I believe

Questions 3 is hardness

Explanation:

hope I helped

Answer:

1. c

2. a

3. b

you're welcome

What is the darkest layer of soil at the top of the photograph called?
A. Aggregate
B. Subsoil
C. Bedrock
D. Topsoil

Answers

Answer: D.)Topsoil

Explanation: Have agriculture

What is the Scientific
Method?

Answers

Answer:

I just finished a unit on Scientific Method in my science class! Anyway, it's defined in the screenshots below. Hope this helps!

Use the information below to explain why the atomic radius decreases down a group.

Answers

Answer:

Detail is given below

Explanation:

Atomic radii trend along group:

As we move down the group atomic radii increased with increase of atomic number. The addition of electron in next level cause the atomic radii to increased. The hold of nucleus on valance shell become weaker because of shielding of electrons thus size of atom increased.

As the size of atom increases the ionization energy from top to bottom also  decreases because it becomes easier to remove the electron because of less nuclear attraction and as more electrons are added the outer electrons becomes more shielded and away from nucleus.

In A we can see that there is one positive charge and force of attraction is 2.30×10⁻⁸ N and distance is 0.10 nm

In B we can see that negative charge is further away from nucleus because of greater distance thus force of attraction will be less. 0.58×10⁻⁸ N

In C this distance further increases and force also goes in decreasing 0.26×10⁻⁸ N.

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