Why aren't the electrons counted in the mass of an atom?

Answers

Answer 1

Answer:

Explanation:

The mass of an electron is small compared to the neutron and proton, so it's negligible. It's like adding zero to a number.


Related Questions

help me please i dont understand

Answers

Answer:

0.58

Explanation:

Sinẞ = opposite ÷ hypotenuse

Sinẞ = 5 ÷ 8.6

Sinẞ = 0.5814

Sinẞ ≈ 0.58

Answer:    0.58

Explanation:

hope this helps

Fun Fact: Peanuts aren’t technically nuts

A machine has mechanical advantage,what does it mean? ​

Answers

Answer:

In machines that transmit only mechanical energy, the ratio of the force exerted by the machine to the force applied to the machine is known as mechanical advantage. Under mechanical advantage the distance the load will be moved will be only be a fraction of the distance through which the effort is applied.

identify two ways in which friction is not useful in science​

Answers

Answer:

Friction between brakes and the wheels of a car or bicycle helps the vehicles slow down.If you do not lubricate your bike regularly with oil, the friction in the chain and axles increases.

will mark brainliest!

Answers

Answer:

Explanation:

Fa - u*m*g = m*a

Fa = u*m*g + m*a

Fa - m*a = u*m*g

u = [tex]\frac{Fa - m*a}{m*g}[/tex]

explain the dangers of electrostatics​

Answers

It can cause spikes
Presence of flammable gases that can lead to explosion

Kamal was told by his mother to pour water through a thin cloth into another container to further purify the water.
a) What do you think will happen to the mud and sand when pouring the water?
b) What is this process called?
c) Do you think the water filtered by Kamal is safe to drink? Explain in detail.

Answers

Answer:

a) When we pour the water on the cloth it got filtered by passing through it.

b) Filtration.

c) No, it is not much as safe for drinking because when we filter the water from the cloth, only the mud and sand is filtered by this process but the bacteria in it are not filtered.

What is the density of a 14.4 g of chromium in a rectangle with a volume of 2 cm3?​

Answers

Answer:

[tex]density = \frac{mass}{volume} \\ \\ density = \frac{14.4}{2} \\ \\ { \boxed{ \boxed{density = 7.2 \: g {cm}^{ - 3} }}}[/tex]

Question 3 of 25
In which phenomenon does light act as particles?
A. Double-slit experiment
B. Diffraction
C. Constructive interference
D. Blackbody radiation

Answers

Answer:

D. Blackbody radiation

Explanation:

Such absorbs all colors of light due to the spectrum determined by temperature only.

Suppose you walk from your house to school, then from school to the store, and then from the store to your friend's house.

If the distances are A = 743 m, B = 1,402 m, and C = 683 m, what distance did you travel?

Answers

So based on the wording, I’m guessing the way to solve it would be to add all of the distances together to form one coherent piece. So 743+1402+683=2828

A bus is moving with a speed of 72 km/hr.If the driver applies brake and stops the bus in 4 seconds,what distance does the bus travel before stopping?​

Answers

Answer:

The distance is 40m

Explanation:

hopefully the picture is visible and understandable

:)

calculate the magnitude of the current through a resistor of 5ohm when the voltage across the resistor is 40v​

Answers

Answer:

8 A

Explanation:

The magnitude of the current can be found by using the formula

[tex]i = \frac{v}{r} \\ [/tex]

v is the voltage

r is the resistance

From the question we have

[tex]i = \frac{40}{5} = 8 \\ [/tex]

We have the final answer as

8 A

Hope this helps you

Answer:

8 A

Explanation:

We know that

V = IR

40 = I(5)

40/5 = I

8 = I

An Internet connection transfers 32 kilobytes per second. How many bytes are being transferred every second?

Answers

Answer:

32,000

Explanation:

There are 1,000 bytes in each kilobyte, so therefore 32,000 bytes are transferred each second.

A student doing an experiment spilled some salt and sugar into the sink. How should these substances be cleaned up?

Answers

Answer:

I guess rinse it out and wipe it up. It's not a hazardous substance so there's nothing to worry about.

These substances should be cleaned up rinsing the area or removing the compounds with a cloth and dispose of it in the trash.

Sugar is a chemical compound also called sucrose. Its chemical formula is C12H22O11. This compound is normally used to sweeten foods.

On the other hand, common salt is a chemical compound. Its chemical formula is NaCl. This compound is normally used to give food a salty taste.

According to the above, in which a student spilled some salt and sugar in the sink and does not know how to clean it, it can be concluded that the proper way to clean these chemical compounds is by rinsing the area or removing the compounds with a cloth and dispose of it in the trash because neither of them represents biological, chemical or physical risks and a specialized treatment is not required for them.

Learn more at: https://brainly.com/question/12166462

How does the Law of Conservation of Energy explain why ice cubes melt in water?

Answers

Answer:

because it is an ice that is why it melt

what is kinametics ? ​

Answers

Explanation:

kinematics is just the focus on motion of an object rather than other factors such as what caused it. Seeing and studying how a apple moves without studying what force pushed the aple in the first place.

1. Define friction, and explain why it occurs.​

Answers

Answer:

The simplest way to put it is that friction is a force in which there is a resistance between material elements when they slide against each other. There is no completely accurate answer as to why friction occurs, but scientists believe that it is because of tiny bumps on the surface of a material.

7. Our state of mind affects how we observe our surroundings. What
mental state is the best for observing?
I
a) happy
c) nervous
b) relaxed d) excited

Answers

It has to be C Nervous

Why is sound not a example of matter

Answers

Answer:

Because it doesn`t take space or have weight

It also can`t be considered a medium for these reasons

a car initially at 65.00 m/s accelerates at 22.39 m/s^2. How far has the car traveled before it comes to a stop

Answers

Answer:

94.35 meter

Step by step explanation

a substnace made up of two or more elemts is known as

Answers

Compound : A substance made of two or more elements that are chemically combined in fixed amounts. Periodic Table of Elements : A table in which all the known elements are arranged by properties and are represented by one or two letters, referred to as chemical symbols.

a 100 gram lump of gold is how many kilograms in mass?

Answers

Explanation:

As we know 1g=0.001 kg

now,

100g=(100×0.001)kg0.1kg

hope it helps.stay safe healthy and happy..

1g=0.001 kg. Hope it helps.

prove- s=UT+1/2 of 2​

Answers

Answer:

I hope it helped U......

Sakura finds out that there is a photograph of her circulating the internet; the photo makes it look like she is kicking a cat, but she had actually just kicked a small ball and the cat just happened to jump into the frame at an odd time. What member of her team would be responsible for writing a press release that explained the truth of what happened? journalist W professional agent publicist​

Answers

Answer:

Publicist

Hope this helps

Explanation:

because they deal with media

Publicist would be responsible for writing a press release that explained the truth of what happened. The correct option is D.

Thus, A publicist is in charge of handling a person's media interactions and public image.

In this case, a publicist would try to dispel the confusion by giving factual details about the incident and making sure that the public and the media are adequately informed of the facts.

They are essential in managing and controlling the story in order to safeguard and preserve the person's reputation.

Thus, Publicist would be responsible for writing a press release that explained the truth of what happened. The correct option is D.

Learn more about Reputation, refer to the link:
https://brainly.com/question/29679448

#SPJ3

11.
2.4 g/mL x 15.82 mL

Answers

Answer:

The final solution is 38 g.

Explanation:

(2.4 (g / mL)) x 15.82 mL

= 37.96800 grams

When rounded, we get 38, so 38 g is the final solution.

Answer:

38 g is the answer

weight = mass x gravitational field strength

i. Mass as subject
ii. Gravitational field strength as subject

Answers

Answer:

I mass as subject

is the answers

Precision is how close a series of measurements are to ______

Answers

Answer:

Accuracy is how close a measured value is to an accepted value. Precision is how close measurements are to one another. To make measurements, you have to evaluate both the accuracy and the precision to get a correct value.

Calculate the molecular weight of Aluminium hydroxide​

Answers

Al(OH)3 = 26.98 + [(16×3) + (1.01×3)] = 26.98 + 51.03 = 78.01 and the unit will be g/mol

Al(OH)3 = 78.01 g/mol

a car initially at 39.40 m/s accelerates at -3.00 m/s^2 how far has a car travel when it comes to a stop 9.35 seconds later

Answers

Answer:

499.523. meter

I hope it's helps you

The strength of a froce is usually expresses by its
A) direction
B) situation
C) magnitude
D) motion

Answers

Answer:

motion

Explanation:

carsnejejsejsejjsejsj3bsbejze s

The strength of a force is usually express by its magnitude .

A constant force acts on a body causing the momentum of the body
to increase. Which expression relates the force to the momentum and the time taken?

Answers

The expression that relates the force to the momentum and the time taken is [tex]F =\frac{\Delta P}{t}[/tex].

Let the constant force causing change in momentum, = FLet the time of force action = t

The impulse experienced by the body at the given constant force and time is calculated as follows;

[tex]J = \Delta P = mv[/tex]

where;

ΔP is change in momentum

The force acting on a body is given by Newton's second law of motion;

[tex]F = ma\\\\F = \frac{mv}{t} \\\\Ft = mv\\\\Ft = \Delta P\\\\F = \frac{\Delta P}{t}[/tex]

Thus, the expression that relates the force to the momentum and the time taken is [tex]F =\frac{\Delta P}{t}[/tex].

Learn more about impulse and momentum here: https://brainly.com/question/23555361

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