Help! I am in a hurry! Will get brainliest if correct!

Answer:

She needs to know the Mass and acceleration

Janet needs to know the mass of the box and acceleration .

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.

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Answer: C because I’m smart

Explanation:

The Lymph nodes have been consisted of the lymph fluid that has been able to entrap the bacteria and kill them. Thus, option C is correct.

Lymph nodes have been defined as the small swellings in the lymphatic system that has been consisting of the various parts of the body.

The lymph nodes have consisted in the neck, armpit, chest and abdominal region of the body and have been able to perform the function as the first layer of defense.

The Lymph nodes have been consisted of the lymph fluid that has been able to entrap the bacteria and kill them. Thus, option C is correct.

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Answer:

15.1025 I your answer okayyyyy

Answer:

Less

Explanation: I took the test.

Answer: negative ions have less protons than electrons.

Explanation:

Answer:

1- Natural sources are renewable with time

2- To refrain from over usage of products on unnecessary things

3- An example of poor soil management is using the soil with the most minerals to put houses on instead of farming with

Answer:

When the electrons hit the atoms in the chamber, they cause some of the electrons in the atoms to be stripped or knocked away. ... When one or more electrons is knocked off of an atom, it becomes positively charged. It is now an positive ion. A negative ion can be made by adding an electron to an atom.

Explanation:

Answer:

True

Explanation:

Answer:

True

Explanation:

Most people stick to what they know and don't look for a laughing place.

Answer: The products usually weigh more than the reactants.

Explanation:

Answer:

A

Explanation:

i just took the k12 test

Answer: the difference is due to the fact that one water molecule has two hydrogen atoms to one oxygen this means it takes two water molecules (2 H2O) to make one oxygen molecule (02) .At the same time however two molecules of water (2 H20) can make two molecules of hydrogen (2 H20)

Explanation: hope this helped and mark me as brainliest please =)

Explanation:

[Ne] 3s² 3p⁵

Image result for What is the electron configuration of chlorine?

Atomic number: 17

Symbol: Cl

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Argon

Answer:

Explanation: Understanding valence electrons is key to understanding chemical bonding. Delocalized valence electrons produce metallic bonds (bonds between atoms of metals) which give metals unique properties such as conductivity and ductility (draw metal into wires)

Answer:

See explanation

Explanation:

1. The Ketone was not sown in the question but i can give you a general idea of how to calculate its molecular weight. A ketone has a general molecular formula of CnH₂nO.

The molecular weight is calculated knowing that the relative atomic mass of carbon is 12, that of hydrogen is 1 while that of oxygen is 16.

Hence from the general molecular formula, the molecular weight of any ketone is calculated from; n(12) + 2n(1) + 16. Where n represents the number of atoms of each element in the ketone.

2. Sublimation of dry ice occurs when the molecules in dry ice absorb sufficient energy in the form of heat such that they now have enough energy for some molecules to overcome the inter molecular forces acting in the solid crystal and transform directly into the vapor phase. This process is endothermic.

3.  

cyclohexane and CH2Cl2 molecules are held together by dispersion forces.

CH3CH2OCH2CH3 and  CH3CN are polar molecules held together by  dipole-dipole forces.

Answer: E

Explanation:

Answer:

The answer is Radiation

Answer:

Convectional

Explanation:

It is the movement of heat through fluid

While radiation travels though a vacuum and conduction accrues between atoms / solids

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The last section of the digestive system is the rectum.

Digestive system is the system of the body that comprises of organs,enzymes that help to break down large molecules of food into smaller mole yles which is easily absorbed by the body.

Therefore, The last section of the digestive system is the rectum.

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Answer:

r3ctum

Explanation:

for people on edge.

Answer:

I belive its liquid if I'm right because liquids are packed together when they take shape but they are still able to move.....brainliest???

Answer:

Liquid

Explanation:

Please don't jugde me if I got it wrong

Answer:A

Explanation:just casuse

Answer:

2.7g/cm³

Explanation:

Given parameters:

Dimension of the aluminum  = 10.5cm x 10.5cm x 0.1cm

Mass of the aluminum  = 29.8g

Unknown:

Density  = ?

Solution:

Density of a substance is its mass per unit volume;

  Mathematically;

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

Volume of the aluminum  = 10.5cm x 10.5cm x 0.1cm = 11.025cm³

  So, insert the parameters and solve;

  Density  = [tex]\frac{29.8}{11.025}[/tex]   = 2.7g/cm³

Answer:

A

Explanation:

Answer: A change in appearance. (Please say thanks!)

Explanation:

The biggest sign of a chemical change is change in appearance.

Answer:

d

Explanation:

Answer:

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

[tex]n = \frac{N}{L} \\ [/tex]

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

[tex]n = \frac{4.88 \times {10}^{23} }{6.02 \times {10}^{23} } = \frac{4.88}{6.02} \\ = 0.810631229...[/tex]

We have the final answer as

Hope this helps you

Answer:

A Their soluble salts usually form coloured aqueous solutions

Answer:

6

Explanation:

Work Shown:

Force = Mass*Acceleration

F = ma

12 = m*0.2

12/0.2 = m

60 = m

m = 60 kilograms

Answer:

C is it!

Explanation:

Answer:

53.6g of water are needed

Explanation:

Solubility is the maximum amount that a solvent can dissolve of a particular solute.

100g of Water can dissolve 140g of KI.

That is also the definition of a satured solution: A solution that is dissolved in the maximum amount in a particular amount of solvent.

If there are dissolved 75.0g of KI, the amount of water needed are:

75g KI * (100g water / 140g KI) =

Heat transfer has to do with the movement of heat from one point to another.

The term heat transfer has to do with the movement of heat from one point to another. There are three modes of heat transfer and these are;

1 Conduction

2 Convection

3 Radiation

Now, we shall try to establish the modes of heat transfer here;

1) The oven get warmer while transporting a hot baking dish - conduction

2) Maslow heats over fire - Radiation

3) The sun causes water in the pond to evaporate - Convection

4) Hot air inflates a balloon - conduction

5) Heat from the air is absorbed by ice cubes - conduction

6) A hot horseshoe transfers heat to tongs - conduction

7) A pot sitting on a hot burner - conduction

8) A bowl of cereal cools - convection

9) Water is warmed over fire - conduction

10)  spoon gets warmer after sitting over a bowl of soup - Conduction

11) A microwave heats food - Radiation

12) An infrared sensor detects body heat - radiation

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Answer:

Electron shielding is when the inner electrons shield the outer electrons from the full force of the nucleus

Answer:

positive

Explanation: