Which is a characteristic of the part of the atom marked
"A"?

It contains most of the mass.
It is negatively charged
It is mostly empty space.
It is composed of electrons.

Answers

Answer 1

Answer:

It contains most of the mass

Explanation:

that part A rigth

Answer 2

Answer:

A

Explanation:


Related Questions

What is involved in weathering?

Answers

Answer:

the answer is water.Hope this helps

Define a force.......

Answers

Answer:

Gravitational Force.

Gravitation is the agent that gives weight to objects with mass and causes them to fall on the ground when dropped.

Answer:

A force is the strength or energy as an attribute of physical action or movement.

Explanation:

In smaller words, a force is a form of energy caused from a push or a pull on an object. A force happens when two objects interact with each other. For example, when you throw a ball you are using force.

Hopefully this helps im sorry if i got it wrong im kinda dumb... XD

PE = mgh, solve for m

Answers

Answer:

P.E. = mgh, where m is the mass in kilograms,

Answer:

[tex]m = \frac{PE}{gh} [/tex]

Explanation:

[tex]if \: PE = mgh \\ then \to \\ m = \frac{PE}{gh} [/tex]

♨Rage♨

which element would have properties most like arsenic (As)? Te Ge P Se

Answers

Answer:

P

Explanation:

Explain why warm air temperature has lower air pressure than cold air?

Answers

Answer:

Differences in temperature cause differences in air density. Warmer air is less dense than cold, which is why warm air tends to rise and cold air sinks.

temparature affects particles. warm particles are more spread out.

Explanation:

. Being acted on by gravity, colder, denser air weighs more and exerts greater pressure per unit area.

mL? PLEASEEE HELP
What is the answer

Answers

22.5 milliliters :)))
22.5 ml is the answer I think

1. True or False? The scientific method is defined as a method of research
in which a problem is identified, data is gathered, and a hypothesis is
created based off the data, then the hypothesis is tested.

Answers

Answer:

true

Explanation:

please mark BRAINLIEST

Which of these describes how traits are shown on a branching tree diagram?

A. All the traits developed at the same time.

B. The traits developed in organisms in random order.

C. Traits lower on the tree developed before traits higher on the tree.

D.Traits higher on the tree developed before traits lower on the tree.

Answers

Answer:

D- Traits higher on the tree developed before traits lower on the tree.

Explanation:

The answer is D because the higher/stronger a trait is it will be developed before any lower traits.

Someone drops a book on the floor, and it makes a loud noise. At that time, you turn to look at the person who dropped the book. The loud noise is an example of a…

A. Hydrotropism

B. Stimulus

C. Response

D. Phototropism

Answers

Answer: Stimulus

Explanation: The definition of Stimulus is "a thing or event that evokes a specific functional reaction in an organ or tissue," according to the Oxford Dictionary. So the book dropping and causing a noise is an example of a stimulus.

PLEASE HELP!!
A model stands on a scale and finds her weight to be 105 pounds. If
the pressure exerted by her feet on the scale is 2.16 pounds per
square inch, what is the area of her feet in cubic centimeters?
__cm2

Answers

Answer:

313.5cm²

Explanation:

Given parameters:

Weight of model  = 105pounds

Pressure applied on the scale by model = 2.16pounds per square inch

Unknown:

Area of her feet in cm² = ?

Solution:

Pressure is the force per unit area;

     Pressure  = [tex]\frac{Force}{Area}[/tex]

Input the parameters and solve;

                2.16  = [tex]\frac{105}{Area}[/tex]

       105  = 2.16 x Area

        Area = [tex]\frac{105}{2.16}[/tex]   = 48.6in²

We need now to convert the in² to cm²

          1in² = 6.45cm²

        48.6in² = 48.6 x 6.45  = 313.5cm²

Describe Thomson’s and Millikan’s contributions to atomic theory.

Answers

Answer:

Thomson passed an electric current through sealed glass tubes filled with gases. Thomson concluded that electrons must be parts of the atoms of all elements. Millikan determined the charge and mass of the electron.

Explanation:

Thompson discovered electrons and proposed the plum - pudding model of the atom. Millikan measured the charge to mass ratio of an electron.

In the early days of the atomic theory, working with his cathode ray tube, J.J Thompson discovered electrons. His discovery of electrons led him to propose a model which depicted the atom as a sphere of positive charges into which negative charges were embedded. This is the plum-pudding model of the atom.

Using his famous oil-drop experiment, R.A Millikan successfully measured the charge to mass ratio of the electron and thereby determined the magnitude of charge on the electron.

Learn more: https://brainly.com/question/11527546

(b) Define, in terms of oxidation state, the Oxidizing agent
a substance which gains oxygen
a substance whis lose hydrogen
a substance which experiences a decrease in oxidation state
a substance which experiences an increase in oxidation state​

Answers

Answer: a substance whis lose hydrogen

Explanation:

Which option is an example of a chemical property?
A. boiling point
B. ability to react with oxygen
C. color
D. density

Answers

Answer:

boiling point

Explanation:

Option B

What is the density of an object that has a mass of 62.4 grams and a volume of 7.6 cm 3 ?

Answers

Answer:

d≈8.21 g/cm^3

Explanation:
The density can be found by dividing the mass by the volume.
d=m/v
The mass is 62.4 grams and the volume is 7.6 cubic centimeters.
m=62.4 g
v=7.6 cm^3
Substitute the values into the formula.
d=62.4 g/7.6 cm^3
Divide
d= 8.210526315789474 g/cm^3
Round to the nearest hundredth. The 0 in the thousandth place tells us to leave the 1 in the hundredth place.
d≈ 8.21 g/cm^3

The density of the object is about 8.21 grams per cubic centimeter.

Which of the following has a higher electronegativity oxygen or selenium?

Answers

Answer: Oxygen

Explanation: Oxygen has more ionisation energy and Oxygen has a small size which makes it more electronegative.

What advances in technology helped usher in the scientific revolution? Choose the best answer.



1.The landing on the Moon by Apollo brought about the scientific revolution.


2.Discoveries by scholars in the Catholic Church revolutionized scientific knowledge.


3.The discoveries by ancient Greek, Muslim and Chinese scientists.


4.The discovery of optics gave scientists instruments such as microscopes and telescopes.

Answers

Answer:

The discovery of optics gave scientists instruments such as microscopes and telescopes.

Explanation:

The period between the 16th-8th century was called the period of the scientific revolution. At this time, the foundations  of our modern science was laid.

One of the characteristic of this period was the emphasis on the scientific method which upheld results from reproducible experiments.

Nicolaus Copernicus, Francis Bacon and Isaac Newton were leading names in this period.

It was within this period that the discovery of optics gave scientists instruments such as microscopes and telescopes and scientific  examination of the celestial bodies was launched.

Define the concept of Energy in your own words

Answers

Answer:

In general, the word energy refers to a concept that can be paraphrased as "the potential for causing changes", and therefore one can say that energy is the cause of any change. The most common definition of energy is the work that a certain force (gravitational, electromagnetic, etc) can do. Due to a variety of forces, energy has many different forms (gravitational, electric, heat, etc.) that can be grouped into two major categories: kinetic energy and potential energy. According to this definition, energy has the same units as work; a force applied through a distance. The SI unit of energy, the joule, equals one newton applied through one meter, for example. Energy has no direction in space, and is therefore considered a scalar quantity. Energy is a conserved quantity, meaning that it cannot be created or destroyed, but only converted from one form into another. Thus, the total energy of the universe always remains constant. One form of energy can be readily transformed into another; for instance, a battery converts chemical energy into electrical energy.

Explanation:

CAN SOMEONE HELP ME!!!!!!!!!!!!!

Answers

Answer:

5 g/cm^3

Explanation:

Density = mass / volume

Select the correct answer

Which statement best supports the idea that water conservation is important for human societies?

OA Once humans use water, it cannot be reused ever again,

OB. Only about 1% of the freshwater on Earth is easily accessible.

OC Water is constantly being lost from the hydrosphere

OD. Most land animals use salt water instead of freshwater.

Answers

Answer:

Only about 1% of the freshwater on Earth is easily accessible.

Explanation:

Freshwater accounts for a minimal proportion of water resources on planet earth. About 70 percent of the world surface area  is covered by water, but only  about 2.5 percent of this mass of water is fresh. The remaining are marine or salt water. Amazingly, just about 1 percent of this  freshwater is easily accessible. The other 1.5% is trapped in glaciers and snowfields.

This underscore the need for water conservation on the planet since fresh water is a scarce resource and people living in many areas have no access to fresh water.

The millions of fossils that scientists have collected are called the fossil __.

Answers

Answer:

record

Explanation:

what is the concept of the doppler effect?

Answers

Doppler Effect refers to the change in wave frequency during the relative motion between a wave source and its observer. ... For instance, when a sound object moves towards you, the frequency of the sound waves increases, leading to a higher pitch.

how this is helpful!!!!

need help asap
Calculate the frequency for a wavelength of 635 nm.

Answers

Answer:

472114107.086614 MHz

Explanation:

f = C/λ

λ: Wavelength in meters

C: Speed of Light (299,792,458 m/s)

Atomic number is equal to the number of electrons in an atom?.

Answers

Answer:

true I think not sure

Explanation:

In a longitudinal wave, particle displacement is

Answers

from google, so I think the answer to that question is the second one

please need asap
An atom with 38 protons and 49 neutrons would be



Strontium-49


Francium-49


Strontium-87


Francium-87

Answers

Answer:

i think it is francium 87 if i fail then i am sorry

Sugar is added to iced tea and the contents are stirred until all of the sugar dissolves. How would the tea now be classified?

Answers

By concentrating the mixes of substances

What is the rule of zero charge?

Answers

Answer:

The nonmetal atoms accept electrons and form ions with a negative charge, called anions. When an ionic compound forms, the total charge on the atoms adds up to zero. This is known as the rule of zero charge.

Explanation:

Using the formula M=dx v, Calculate the mass of a liquid with a density of
17.5 g/mL and a volume of 7mL.

Answers

Answer:

The answer is 122.5 g

Explanation:

The mass of a substance when given the density and volume can be found by using the formula

mass = Density × volume

From the question

volume = 7 mL

density = 17.5 g/mL

We have

mass = 17.5 × 7

We have the final answer as

122.5 g

Hope this helps you

Record the length of the object shown.

Answers

Maybe like 7 1/2 ::::::::::::::: oh

Answer: 7.26 mm

I did the test already.

IUPAC name for C3H7​

Answers

Answer:

propyl

Explanation:

......:)

..;) .........

Other Questions
Select the correct answer from each drop-down menu.The Northville School Board has proposed this budget for the upcoming school year 20% for school staff's salaries 50% for school maintenance and upkeep 10% to refurbish the gymnasium 5% to upgrade the computer lab hardware 10% for new instruments for the music department 5% for new sports equipmentAfter a brief discussion, the school board revised the budget as follows: 20% for school staffs salanes 50% for school maintenance and upkeep 10% to refurbish the gymnasium 10% to upgrade the computer lab hardware 5% for new instruments for the music department 5% for new sports equipmentIn this case, the opportunity cost for 1 quart= 4cups=1.96, Each cup coat? This principle repeats a design element and creates a "visual beat."* Pick ONE. PLEASE FASTTT :)1.) Proportion2.) Balance3.) Unity4.) Pattern HELP PLEASE ASAPWhich type of context is the writer in this scenario most directly concernedwith?Eduardo must find a way to take the information he hasgathered about astrophysics and present it in a way that'sappealing -perhaps as a book, although a website wouldallow him to be less linear.A. AudienceB. PurposeC. Organization D. Genre PLZ help me if your question is good enough i will give you branliest Write the vocabulary word for: A ratio of two quantities with different units.We dont have vocab words in class so.... Which best explains how photosynthesis is helpful to humans? OIt reduces the amount of harmful rays released by the sun. O It increases the levels of carbon dioxide in the air. O It provides oxygen for humans to breathe. OIt produces proteins, which humans can eat. What is (-2,-2) and (-10,-9) on slope When should an essay writer provide a source? PLease Help I WILL GIVE BRAINLEST Question 3: Determine the missing base in the equation problem below. 75eight = 23 base Please help!!!!!!!! What is the measure of angle 4? At the snack bar, 12 hot dogs are sold for every 10 hamburgers sold. At this rate, how many hamburgers will be sold if 66 hot dogs are sold? The distance from El Paso Texas to HoustonTexas is approximately 746 miles. If youhave already traveled 296 miles and you planon driving at a constant rate of 75 miles perhour, how long will it take to get to Houston? ITS IN THE PIC PLZZ ILL GIVE BRAINLIEST Suppose x = 5 is a solution to the equation 4x 3(x + a) = 2. Find the value of a that makes the equation true. a. -25b. 2c. 3d. 1 Nine less than five times a number is equal to -30. Written as a rate 210 miles in 6 hours would be miles per hour please hurry I need this fast i will mark brainliest identify one level above and below alveoli, and list the levels of organisation in humans