HOW TO DO THIS QUESTION PLEASE ​

HOW TO DO THIS QUESTION PLEASE

Answers

Answer 1

The total positive charge on all the atoms of an element are the same because the number of protons determine the identity of the element.

What is an atomic model?

An atomic model is a representation of the structure of the atoms of elements.

The negatively charged particles in the figure are the electrons while the positively charged particles are the protons. In the second image, the large grey dot at the center is the nucleus while the smaller grey dots around the ellipses are the electrons.

The total positive charge on all the atoms of an element are the same because the number of protons determine the identity of the element.

Learn more about electrons:https://brainly.com/question/1255220?

#SPJ1


Related Questions

pls somebody help me quick

Answers

Answer:

greater than

Explanation:

A bowling ball is bigger than a golf ball and greater than means bigger.

How do we calculate efficiency?

Answers

Explanation:

Efficiency is often measured as the ratio of useful output to total input, which can be expressed with the mathematical formula r=P/C, where P is the amount of useful output ("product") produced per the amount C ("cost") of resources consumed.

i dont know what the answer really is but this is what i think

A baseball is thrown at a 22.5° angle and an initial velocity of 65 m/s. What will be its horizontal
and vertical velocity?*

Answers

Answer:

Horizontal

Explanation:

It is going more sideways than upwards

What are successfulness of the Competition policy in South Africa?​

Answers

Answer:

The product choices along with its competitive prices were provided to the consumers. Practices such as horizontal collusion and resale price maintenance was declared unlawful in 1984. Prevention of monopoly growth was the aim of the competition policy act.

Explanation:

hope this helps you

A monochromatic beam of light has a frequency of 6.5 x 10" hertz. What color is the light?
O orange
O yellow
O violet
O blue

Answers

Answer:

violet

Explanation:

can anyone help me please​

Answers

Answer:

Gravity.

Rocket ships.

Ball.

Basketball.

Explanation:

Gravity has to do a lot with air. It puts the planets in there area.

Rocket Ship has to do a lot with air. If i'm right, they calculate the area, weather, about the air.

A ball gets throwed in the air, which gravity comes into place.

Basketball is also a similar example to a ball.

Force=k((q1q1)/r^2)

The force that one electrically charged object exerts on other charged objects can be calculated using Coulomb's law.
You can see this law here written in equation form. The q's represent the two charges, and the r the distance between
the charges. The constant kis 9109
Using this information, calculate the electric force exerted by a +2 coulomb charge on another +2 coulomb charge,
when the charges are 25 meters apart

A)1.44*10^11
B)5.76*10^11
C)8 Newton’s
D)64 Newton’s

Answers

Answer:

transferred from one object to another. Charged objects can exert forces on other charged ... Electric charge can be measured using the law for the forces between charges

The electric force exerted by the +2 C on another +2 C when at a distance of 25 m is 5.76×10⁷ N

Coulomb's law equation

F = Kq₁q₂ / r²

Where

F is the force of attraction K is the electrical constant q₁ and q₂ are two point charges r is the distance apart

How to determine the force Charge 1 (q₁) = 2 CCharge 2 (q₂) = 2 CElectric constant (K) = 9×10⁹ Nm²/C²Distance apart (r) = 25 mForce (F) =?

F = Kq₁q₂ / r²

F = (9×10⁹ × 2 × 2) / (25)²

F = 36×10⁹ / 625

F = 5.76×10⁷ N

Learn more about Coulomb's law:

https://brainly.com/question/506926

Which two parts do the capillaries surround?

A. small intestines and heart

B. heart and lungs

C. alveoli and small intestines​

Answers

Answer:

do we have to choose 2 answers here?

Answer:

most probably it's C

Explanation:

alveoli is surrounded by capillaries and whit that option small intestines is also there

A traveler at Newark airport pulls his 294N suitcase with constant velocity to the check-in counter applying a force of 159N at an angle of 37 degrees with the horizontal. Calculate the Normal force, frictional force and the coefficient of friction between the suitcase and the airport floor.

Answers

Answer:

N = 198.3 N,  fr = 126.98 N and    μ = 0.64

Explanation:

For this exercise we must use the translational equilibrium condition.

Let's set a reference system with the x-axis horizontally and the y-axis vertical. Let's use trigonometry to decompose the applied force

      cos θ = Fₓ / F

      sin θ = F_y / F

      Fₓ = F cos θ

      F_y = F sin θ

      Fₓ = 159 cos 37 = 126.98 N

      F_y = 159 sin 37 = 95.69 N

Y axis  

    N + F_y - W = 0

    N = W - F_y

    N = 294 - 95.69

    N = 198.3 N

X axis

    Fₓ -fr = 0

     Fₓ = fr

     fr = 126.98 N

the expression for the friction force is

       fr = μ N

       μ = fr / N

       μ = 126.98 / 198.3

       μ = 0.64

Ms Jo Jo rubbed two balloons with a piece of wool. What will happen when the balloons are brought near each other?

Answers

It will creat a static charge because rubbing the balloons together creates static electricity

All eukaryotic cells have mitochondria, but only the cells of photosynthetic organisms have chloroplasts. Explain how what takes place in chloroplasts differs from what takes place in mitochondria (singular = mitochondria).

Answers

Answer:

Explanation:

In the chloroplast, photosynthesis occur. The chloroplast capture light energy from the sun and use it with carbondioxide and water to produce glucose and oxygen. Chloroplasts is found in plant cells only

But mitochondria is refer as the power House of the cell. It's break down fuel molecules and produce energy in cellular respiration. Mitochondria is found in both plant and animal cell.

A baseball is thrown at a 22.5° angle and an initial velocity of 65 m/s. What will be its horizontal
and vertical velocity?

Guys pls someone answer my question I have an exam and this question has 5 marks

Answers

Answer:

Horizontal component = 60.05 m/s

vertical component = 22.96 m/s

Explanation:

cosine(angle) = adjacent / hypotenuse or  horizontal / angled velocity

angled velocity * cosine (angle) = horizontal velocity

65 m/s * cosine(22.5) = 60.05 m/s

sine(angle) = adjacent/ hypotenuse or vertical/ angled velocity

angled velocity * sine (angle) = vertical velocity

65m/s sine(22.5) = 22.96 m/s

an optician uses a plane mirror to help him. suppse a patient sits in a chair 2.5m away from him. He views the image of a chart which faces the mirror and is located 30m behindd him. how far is the chart as viewed by his eyes​

Answers

Answer:

I think 75 m

Explanation:

tell if it was correct

If the temperature (at constant volume) of an ideal gas with 20 K is increased to 60 K, the pressure will be:

increased to 3P

increased to 40P

decreased by 3P

decreased by 40P

Answers

Answer:

it will obviously be decreased by 40p

Ganymede, the largest of Jupiter’s moons,
is also the largest satellite in the solar system. Find the acceleration of
gravity on Ganymede if a simple pendulum with a length of 1.00 m has a period
of 10.5 s

Answers

Answer:hereeee for pointssss only

Explanation:

The acceleration of gravity on Ganymede will be [tex]g=0.35\ \frac{m}{s^2}[/tex]

What will be the acceleration of gravity on Ganymede?

It is given that for a simple pendulum on Ganymede

Lenth= 1.00 m

the time period  T= 10.5 sec

The formula for a time period of simple pendulum will be

[tex]T=2\pi\sqrt{\dfrac{l}{g} }[/tex]

By rearranging the formula

[tex]g=l\times (\dfrac{2\pi}{T} )^2[/tex]

[tex]g=1\times (\dfrac{2\pi}{10.5} )^2=0.3577\frac{m}{s^2}[/tex]

[tex]g=0.3577\ \frac{m}{s^2}[/tex]

Thus the acceleration of gravity on Ganymede will be [tex]g=0.35\ \frac{m}{s^2}[/tex]

To know more about simple pendulums follow

https://brainly.com/question/26449711

Give three examples of the importance of gravity to humans?

Answers

The force that holds the gases in the sun.

The force that causes a ball you throw in the air to come down again.

The force that causes a car to coast downhill even when you aren't stepping on the gas.

A student performed an experiment in the lab and discovered that the material used has a PH of 8.54. What is true about this material

a
it is a base
b
it is an acid
c
more information needed to know if the material is acid or base

Answers

Answer: b it’s an acid
I hope this helps
it’s B !!!! good job stay in school ❤️❤️

5 points
The figure below shows two people ice-skating. Person A collides with
person B. After the collision they move together with the same velocity.
Calculate the mass, m, of person B.

Before collision
After collision
Person A
mass = 60 kg
Person B
mass, m
Person A and person B
moving off together
Speed of
Person A -
5.5 m/s
Speed of
Person B -
2.0 m/s
Speed of Person A and
Person B = 4.0 m/s

Answers

mB = 45 kg

Explanation:

Using conservation of linear momentum,

mAvA + mbvB = (mA + mB)v

(60 kg)(5.5 m/s) + (2.0 m/s)mB = (60 kg + mB)(4.0 m/s)

(330) + 2mB = 240 + 4mB

2mB = 90

mB = 45 kg

What is the new speed for an 10 kg object after 16500 N was applied to it for 2 seconds?

Answers

Answer: 3300 m/s

F = ma; units: N = kg(m/s/s); where F and a are both vectors, while m, t, and v (speed) are scalars

We are given the mass, force, and the time; however, speed is our unknown.

[F = 16500 N]  [m = 10 kg]  [t = 2 s]  [v = unknown]

What we can do is use kinematics in order to relate v and t with F and m:

For example, we can use V = V₀ + at

Since F = ma can equal a = F/m, we can replace the a variable within the kinematics equation with F/m, so that:

V = V₀ + at

V = V₀ + (F/m)t

In this problem, we can assume the initial value V to equal 0, giving us:

V = (F/m)t

Plugging in the quantities we get:

V = [tex]\frac{16500 N}{10kg}[/tex]· 2s

V = 3300 m/s

To further check whether this is the right manipulated equation to use, we can use dimensional anaylsis to determine that:

V = [tex]\frac{kg(m/s/s) }{kg}[/tex]· s

V = m/s

I hope this helped!


Calculate the critical angle for Zircon which has a refractive index of n = 2*

Answers

Answer:

Given that refractive index of the material is √2. i.e. n = √2. Hence, critical angle for the material is 45°

A(n) _______ studies physical components and characteristics of celestial objects.

The answer is ASTROPHYSICIST!

Answers

Answer:

Astronomers?

Explanation:

Answer:

Astrophysicist?

Explanation:

How does the motion of the atoms in the spoon change when the spoon is placed in the hot coffee?
А
The atoms vibrate faster due to the conduction of heat through atoms in the spoon.
B
The atoms vibrate slower due to the conduction of heat through atoms in the spoon
С
The atoms move closer toward each other due to the radiation of heat through atoms in the spoon.
D
The atoms move away from each other due to the convection of heat through atoms in the spoon.

Answers

Answer:

A.The atoms vibrate faster due to the conduction of heat through atoms in the spoon.

PLEASE ANSWER ASAP, WILL MARK BRAINLIEST***

Answers

The answer is to your question is c

A uniform 1.5 T magnetic field points north. If an electron moves perpendicular (90 degrees) with a speed of 2.5x10 ^7 m/s, through this field, what force (magnitude and direction) will act on it?

Answers

Answer:

i think its 470

Explanation:

A bird is standing on an electric transmission line carrying a large amount of current. Find the power dissipated by the bird If the
current it experiences is 1.35^-10 A which results in a potential difference of .0054V.

Side Note:
(I know the answer is 7.3 x 10^-11 W, I just don’t know how to get it)

Answers

P = 7.3 × 10^-13 Watt

Explanation:

First of all, are you sure that what you have is the right answer?

Anyway, the definition of power dissipated is given by

P = I^2×R

where I is the current and R is the resistance. But we also know from Ohm's law that

V = IR

so we can rewrite the equation for power P as

P = I^2R = I(IR) = VI

= (0.0054 volt)(1.35 × 10^-10 A)

= 7.3 × 10^-13 Watt

Using the diagram above, the coefficient of kinetic friction for copper is ____ (Your answer should be given to the nearest thousandths.)
This coefficient _____ applies to all similar copper surfaces.

Answers

Answer:

 μ= 0.0375,  kinetic

Explanation:

For this exercise we set a reference system with the x axis parallel to the chord

Y axis  

      N - W = 0

      N = W

     

X axis

      T - fr = 0

the expression for the friction force is

      fr = μ N

       

we substitute

       T - μ W = 0

       μ = T / W

we calculate

         μ = 1.5 / 40

        μ= 0.0375

coefficient of kinetic friction

Of all of the structures in a cell, which actually contains the cell's DNA? A. Mitochondria B. Cell membrane C. Nucleus D. Cytoplasm​

Answers

Answer:

C. Nucleus

Explanation:

The nucleus, formed by a nuclear membrane around a fluid nucleoplasm, is the control center of the cell. Threads of chromatin in the nucleus contain deoxyribonucleic acid (DNA), the genetic material of the cell.

have a good day and here’s a funny comic just for fun! :)

The nucleus is basically the heart of the cell holding genetic information

Ellie cycled from her home to her friend’s house. She stayed at her friend’s house and then travelled home.
a. At what time did Ellie leave home?
b. How far was Ellie from home while visiting her friend?
c. How long did Ellie stay at her friend’s house?

Answers

I think the answer. Is C

Atmospheric pressure is measured by a device called

Answers

Answer:

barometer

Explanation:

Answer:

barometer

Explanation:

A car accelerates at a rate of 13m/s^2[S]. If the car's initial velocity is 120km/h[N]. What will be its final velocity in m/s, after 2 seconds.

Answers

Answer:

the final velocity of the car is 59.33 m/s [N]

Explanation:

Given;

acceleration of the car, a = 13 m/s²

initial velocity of the car, u = 120 km/h = 33.33 m/s

duration of the car motion, t = 2 s

The final velocity of the car in the same direction is calculated as follows;

v = u + at

where;

v is the final velocity of the car

v = 33.33 + 13 x 2

v = 59.33 m/s [N]

Therefore, the final velocity of the car is 59.33 m/s [N]

Other Questions
The turning point of a story is called the_____ A. Climax B. Conflict C. Trait Kim got a "40" in a class and I make a 70 on a test. How much does the grade goes up? Nick promised Gatsby (after his death) that hewoulda. find someone to mourn his deathb. make sure all the money went tocharityc. tell Daisy about his side of the pastd. put Tom in his place and stop thescandals lildevwashingwhips? Please answer Anyone know the answer? Isabella is playing a board game. The probability that Isabella will lose a turn on her next turn is 11%. Which word or phrase describes the probability that Isabella will lose a turn? Select the correct answer. Mangrove trees can only survive in moderately saline water. What are such organisms called? A. Euryhaline B. Stenohaline C. Mesohaline (incorrect) D. Polyhaline E. Oligohaline (I took the test and put C and got it incorrect) sentences about yourself in french What does the root mandat mean in the word mandatory?CommonPermissionOrderAdvise Evaluate the function below for x= 2. F(x) = 2.F(x)=2x-x-5x+6A. 8B. 16C. 56D. 4 Since 1980, a well-organized and well-funded movement has mounted a strong campaign to weaken or repeal existing U.S. environmental laws and regulations and to change the ways in which public lands are used. True False Which two statements express themes of the poem?Wars are never truly won because of their human cost.The elderly dwell on the strength of their younger days.People tend to believe that bygone days are better.Actions intended for good do not always yield goodness.The things visible to the eye are not as they seem. Write a paragraph explaining how poetry compares to prose. The blending together of some genes is called: he following labor standards have been established for a particular product: Standard labor-hours per unit of output 10.1 hours Standard labor rate $ 13.90 per hour The following data pertain to operations concerning the product for the last month: Actual hours worked 7,900 hours Actual total labor cost $ 106,650 Actual output 1,100 unitsWhat is the labor efficiency variance for the month?a. $47,779 Fb. $47,779 Uc. $43,335 Fd. $44,619 F The graphs of linear functions fand g are shown on the grid.which function best represented by the graph of g Subtract 82x from 36x .Answer in this format: Can anyone help ?Kim rolls a dice and flips a coin.a) Calculate the probability that shegets a 2 and a head.b) Work out the probability that shegets an even number and a tail. What would b be Consider triangle ABC.What is the value of y in the triangle?809Angle y =B Abel Corporation uses activity-based costing. The company makes two products: Product A and Product B. The annual production and sales of Product A is 370 units and of Product B is 740 units. There are three activity cost pools, with total cost and activity as follows: Total ActivityActivity Cost Pools Total Cost Product A Product B Total Activity 1 $23,205 900 150 1,050 Activity 2 $38,850 1,950 1,550 3,500 Activity 3 $10,598 145 245 390 The activity rate for Activity 2 is closest to:______.a. 43.17.b. 25.06.c. 19.92.d. 11.10.