Chemistry Middle School

Which of the following is the correct abbreviation for the air mass at point C in the diagram below?MT

mT

MP

mP

Answers

Answer 1

Answer:

mP C. Is right

Explanation:

Answer 2

mP C. Is right

If you want me to add more to that I can.

Related Questions

The speed at which a nitrogen molecule’s particles are moving increases. What will happen to the thermal energy of this molecule?

A) The thermal energy of the molecule will increase.
B) The thermal energy of the molecule will not change, but its mass will change.
C) The thermal energy of the molecule will not change, and its mass will remain the same.
D) The thermal energy of the molecule will decrease.

Answers

Answer

The thermal energy of the molecule will increase.

Explanation:

Increasing the speed at which the particles are moving cause atoms and molecules to move faster and collide with each other. This increases the thermal energy.

List 2 evidences for climate change.

This is 6th grade science. Amplify.

Answers

Answer:

Global Tempurature is rising

Sea level is rising

Explanation:

This is evidence of climate change. Depending on where you live it could be different like in florida there was a drought.

two pieces of evidence would be that
1. our sea level is rising my a lot
2. our global temperature has changed a lot over the years as well.

Some epithelial cells cover the body for
digesition fat storage protection

Answers

it’s protection i think!

which of these objects in the solar system have impact craters.
The Moon
Earth
Mars

Answers

Answer: The moon

Explanation: hope this helps.

the moon because it's the closest

HEEEELP!!! THIS IS DUE TODAY
What is one of the most important forms of energy? Give two examples of how this type of energy is used in our lives.

Answers

Public transportation uses electrical energy.
Refrigeration used electrical energy.

Answer:

"There is no God but Allah, and Muhammad is his messenger." This is the basic statement of the Islamic faith: anyone who cannot recite this wholeheartedly is not a Muslim. When a Muslim recites this they proclaim: That Allah is the only God, and that Muhammad is his prophet.

I hope u find the right path

Explanation:

Match the layer of the earth with the correct description. Group of answer choices

Options for each: Lithosphere, Asthenosphere, Mesosphere, Inner Core

Strong, lower mantle made of dense rock

Layer of weak, soft rock in upper mantle that flows in convection currents

Thin, outermost layer that is divided into tectonic plates

Made of solid, dense iron and nickel

Answers

Answer:

asthenosphere- strong,lower mantle made of dense rock.

inner core-made of solid,dense iron and nickel

lithosphere-Thin,outermost layer that is divided into

tectonic plates.

Mesosphete-layer of weak,soft rock in upper mantle that flows in convection current's.

1. Asthenosphere
2. Mesosphere
3. Lithosphere
4. Inner core

1-Which reaction shown below is carried out by nitrifying bacteria? I will mark you as brainlist
Choose:

A.{ammonium} to {nitrate}

B.{nitrate} to {nitrogen gas}

C.{nitrogen gas} to{ammonium}

Answers

Answer:

ammonium to nitrate.

Explanation:

they tie em together

What kind of rocks would you expect to see on Mars? What evidence supports your response?

Answers

Mars' surface is largely covered with basalt, a volcanic rock covering much of Earth's surface as well. Earth has large amounts of granite in its crust, which Mars appears to lack.

Based on the composition of the martian meteorites and the presence of plains and mountains that look like features produced by basaltic volcanism on Earth, geologists expected to find primarily basalts on Mars.

Choose all the answers that apply.

Nitrogen has an atomic number of 7. Its atomic mass is 14. Nitrogen has _____.

seven electrons
seven neutrons
seven electron shells
23 neutrons
14 electrons

Please help (:

Answers

Seven electrons. The atomic number of a element is also the amount of protons and electrons it has.

As atomic Number is number of protons Or number of electrons so
N has 7 electrons
Neutrons= Mass no.- Atomic Number
= 14-7
N has 7 neutrons
N doesn’t have 7 electron shells because shell 1 can hold 2 electrons and shell 2 can hold 8 electrons
It doesn’t have 23 neutrons and 14 electrons

So, Seven Electrons and seven neutrons is correct

How many atoms doesCo(NO3)2 have

Answers

The answer is 9. Calcium nitrate is made up
of 3 different elements that equal 9 atoms.

9 (I had this on a test and got it right)

SHOW YOU WORK FOR ALL!!!!

Need by 8pm

Answers

Answer:

Explanation:

Force= A

Gravity= B

Mass= C

Inertia= D

Net force= E

Inertia - E: Inertia is the ability for an object to resist a change in its motion.

Mass - C: Mass is the total amount of matter in an object. Measured in grams (g.).

Gravity - B: Gravity is a force of attraction between objects.

Net Force - D: The net force is the total amount of force acting on an object.

Force - A: A force is a push or full on an object. Simply, an action that causes change.

The MORE mass an entity contains, the GREATER the inertia.

Feather - 1
Baseball - 2
Small Car - 3
Truck - 4
Train - 5

Top left question: The net force would be 30 Newtons to the left. Each dog pulls with a force of 6 Newtons. 6 (force) x 5 (dogs) = 30 Newtons to the left.

Top right question: Force = Mass x Acceleration. Force = 20 x 10. Force = 200 Newtons.

Left middle: 7 Newtons to the right. Subtract the 3 Newtons to the left from the higher value.

Right middle: 80 grams. Mass - Force/Acceleration. 40/0.5 = 80

Bottom Left: 8 N (right) - 4N (left) = 4N to the right (net force).

Bottom right: Force/Mass = Acceleration. 18/3 = 6 m/s^2

A small gap is left between the rails in the railway track. Analyze the reason.

Answers

Answer:

There could be several possible reasons for a small gap between rails on a railway track, such as:

1. Expansion joints: Railways are designed to allow the tracks to expand and contract with changes in temperature. To accommodate this expansion, small gaps are left between the rail ends and filled with expansion joints or plates.

2. Wear and tear: Over time, the rails may experience wear and tear due to heavy loads, weather conditions, and other factors. As a result, small gaps can appear between the rails.

3. Maintenance: During maintenance activities, rail tracks may be adjusted or replaced, which could lead to small gaps between the rails.

4. Environmental factors: Environmental factors such as soil shifts, earthquakes or other natural disasters can also affect the alignment of the rails, leading to small gaps.

These are some of the possible reasons for a small gap between the rails on a railway track.

Answer:

The small gap left between the rails in a railway track is intentional and serves a specific purpose. This gap is known as the rail joint, and it allows for the expansion and contraction of the rails due to changes in temperature. When the temperature changes, the metal rails will expand or contract, and if they were joined together tightly, they could buckle or become deformed, which could be dangerous for trains passing over them. The rail joint allows the rails to move slightly and prevent damage to the track.

Additionally, the rail joint also allows for maintenance and repairs of the track. If there were no gap between the rails, it would be challenging to replace a damaged rail or perform routine maintenance, such as tightening bolts or lubricating joints. With the rail joint, maintenance personnel can easily access and work on the track.

Overall, the small gap left between the rails in a railway track is intentional and serves a crucial function in ensuring the safety and reliability of the track.

what is the hairlike structures on the outside of a cell

Answers

it’s the Flagella! hope this helps!

Flagella (singular = flagellum) are long, hair-like structures that extend from the plasma membrane and are used to move an entire cell, (for example, sperm, Euglena). When present, the cell has just one flagellum or a few flagella.

What causes change to ecosystems and when changes to the living or nonliving things occur, what is the impact on the populations of that ecosystem?
(please write 2-3 sentences)

Answers

Answer:

Important direct drivers include habitat change, climate change, invasive species, overexploitation, and pollution. Most of the direct drivers of degradation in ecosystems and biodiversity currently remain constant or are growing in intensity in most ecosystems

Explanation:

Select the best example that illustrates erosion?!!!

Answers

Answer:

Explanation:

B, if I’m wrong sorry. But b makes the most sense.

A student rolls a ball at different speeds to try moving a box of sand.

Answers

Answer:hello friend!

Explanation:

IM not sure what your talking about but ima try the best i can

So lets go to newtons laws of motion, basically he said, more force, more movement. But it depends on how heavy the object is.

Sooo The more heavy the box of sand is, The more force he would have to use to move it. You can also relate this to how much he wnted to move it :)

Sorry if this didnt help :(

Uh what you’re going to have to give me more information about what you’re talking about

Science question! Please read the article and give 2 new facts (not about continental drift please)! Please do this and you get 20 points!

Answers

Answer:

1. Scientists can determine the age of the seafloor through rock samples.

2. An isochron is an imaginary line on a map that shows points that have the same age.

Explanation:

They can see where the earth was connected

A. amplitude
B. frequency
C. pitch
D. speed

Answers

What is the question!

^^ What is the question??

what is the relationship between convince and suspect?

Answers

The relationship between "convince" and "suspect" is that they are opposites.
To convince someone means to persuade them to believe or do something. This involves gaining their trust and making them feel confident in your argument or proposal.
On the other hand, to suspect someone means to have doubts or distrust about their motives or actions. This involves questioning their credibility and being cautious about their intentions.
So, while convincing involves building trust and confidence, suspecting involves the opposite - doubting and being cautious.

convince is to make someone believe, or feel sure about something, especially by using logic, argument or evidence while suspect is to imagine or suppose (something) to be true, or to exist, without proof.

How to work out the relative mass of potassium? What is the calculation? ( explained very easily )

Answers

Answer:

Explanation:

Relative mass does not need to be calculated as it is listed on the periodic table. Potassium's relative atomic mass is around 39.

Relative Atomic Mass = Mass of one atom
———————————
(1/12)th Mass of one C12 atom

Matter is made up of tiny particles

Answers

Answer: Matter is made up of extremely small particles called atoms. An atom is the smallest possible unit of matter that exhibits all the properties of that matter.

Explanation:

Answer:

Matters are made up of tiny particles that are called atoms.

Explanation: Atoms are small tiny particles that posses all the properties of particles

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)

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