Can someone pleaseeee help if you’re correct I’ll give u brainlist

Answer:

b

Explanation:

the different ways the molecules are arranged in the atom creates differ states of matter and different appearences.

Answer:

a. 8.136 × 10¹³ km b. 2.669 × 10¹⁹ feet

Explanation:

a. What is this distance in kilometers?

Since Sirius A is 8.6 light years away from Earth and one light year = distance travelled by light in a year = 3 × 10⁸ m/ s × 365 days/year × 24 hr/day × 3600 s/hr = 9.4608 × 10¹⁵ m = 9.4608 × 10¹² km.

Then 8.6 light years = 8.6 × 1 light year

= 8.6 × 9.4608 × 10¹² km

= 81.363 × 10¹² km

= 8.1363 × 10¹³ km

≅ 8.136 × 10¹³ km

b.  What is this distance in feet?

Since 1 meter = 3.28 feet,

8.6 light years = 8.1363 × 10¹² km

= 8136.3 × 10¹⁵ m

= 8136.3 × 10¹⁵ × 1 m

= 8136.3 × 10¹⁵ × 3.28 feet

= 26687.1  × 10¹⁵ feet

= 2.66871 × 10¹⁹ feet

≅ 2.669 × 10¹⁹ feet

Answer:

La magnitud de la fuerza de atracción entre las cargas es 0.648 newtons.

Explanation:

El enunciado escrito correctamente se presenta a continuación:

Dos cargas eléctricas de polaridades opuestas entre sí y con magnitudes [tex]6\times 10^{-6}\,C[/tex] y [tex]3\times 10^{-6}\,C[/tex] se encuentran separados 0.5 metros. ¿Cuál es la magnitud de la fuerza de atracción entre las cargas?

La magnitud de la fuerza eléctrica entre las dos partículas cargadas eléctricamente se determina mediante la ley de Coulomb, la cual establece que la fuerza eléctrica es directamente proporcional a la carga eléctrica e inversamente proporcional al cuadrado de la distancia. En términos matemáticos, la ecuación de Coulomb se expresa de la siguiente manera:

[tex]F = \frac{\kappa \cdot q_{A}\cdot q_{B}}{r^{2}}[/tex] (1)

Donde:

[tex]\kappa[/tex] - Constante electrostática, medida en newton-metros cuadrados por Coulomb cuadrado.

[tex]q_{A}[/tex], [tex]q_{B}[/tex] - Cargas eléctricas de cada partícula, medidas en Coulomb.

[tex]r[/tex] - Distancia entre las partículas, medidas en metros.

Si tenemos que [tex]\kappa = 9\times 10^{9}\,\frac{N\cdot m^{2}}{C^{2}}[/tex],  [tex]q_{A} = 6\times 10^{-6}\,C[/tex], [tex]q_{B} = 3\times 10^{-6}\,C[/tex] y [tex]r = 0.5\,m[/tex], entonces la fuerza eléctrica de atracción es:

[tex]F = \frac{\left(9\times 10^{9}\,\frac{N\cdot m^{2}}{C^{2}} \right)\cdot (6\times 10^{-6}\,C)\cdot (3\times 10^{-6}\,C)}{(0.5\,m)^{2}}[/tex]

[tex]F = 0.648\,N[/tex]

La magnitud de la fuerza de atracción entre las cargas es 0.648 newtons.

You want us to answer all of those or-??

Answer:

people separate mixtures in order to ger a specific substance that they need. 2. the other thing people separate mixtures to remove the unrequired components. 3.To get a pure substance

Explanation:

hope this helps probably don't because you asked this a week ago but have a good day :) ❤

Answer:

28 miles

Explanation:

3,223 meters/day x 14 days = 45,122 meters

1 meter = 3.28 feet

45,122 meters = 148,000 feet

5280 feet = 1 mile

148,000 feet = 28 miles

Answer:

(A.) Hang curtains over the windows that will transmit sound waves and absorb light waves

we can't see multicellular animal with our naked eyes

Answer:

Answer is -2.

Explanation:

I hope it's helpful!

Answer:

neg 2

Explanation:

Answer: Velocity of 3m is the faster

Explanation: Velocity of 3m is the faster because velocity of -4m goes in an opposite direction to positive velocities

Answer: 20 m/s

Explanation:

Given

mass of bowling ball m=10 kg

Mass of bowling pin M=20 kg

The initial velocity of ball u=10 m/s

The velocity of the pin after collision [tex]v_2=15\ m/s[/tex]

Conserving linear momentum as there is no external force applied

[tex]mu=mv_1+Mv_2\quad \quad (v_1=\text{velocity of ball after collision})[/tex]

[tex]10\times10=10\times v_1+20\times15\\10v_1=100-300\\v_1=-20\ m/s[/tex]

i.e. ball started moving in the direction opposite of its initial direction with a velocity of 20 m/s

The ball moves backwards with a velocity of -20m/s

The data given are;

This law states that assuming no external forces are acting, when two bodies collide together, the sum of their initial momentum remains constant and it's not changed by their collision.

Applying the law of conservation of linear momentum

[tex]m_1u_1+m_2u_2=m_1v_1+m_2v_2\\(10*10) + (20*0) = (10*v_1)+(20*15)\\100+0=10v_1+300[/tex]

collect like terms

[tex]100=10v_1+300\\100-300=10v_1\\-200=10v_1\\v_1=\frac{-200}{10}\\v_1=-20m/s[/tex]

This shows that the balls moves backwards hence the reason why it have a negative velocity.

From the calculation above, the ball moves backwards with a velocity of -20m/s.

Learn more on conservation of linear momentum here;

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Answer:

0.02

430

604

70,230

Explanation:

⇒zero in-between two digits or at the end of a whole is considered significant, example 604, 430, 70,230.

⇒zero at the end of a number with decimal point is not significant, example 7.560

⇒ zero before a digit in a number with decimal point is significant, example 0.02

Thus, the numbers which show zero as a significant digits include;

0.02

430

604

70,230

Answer:

The MKS system of units is a physical system of measurement that uses the metre, kilogram, and second (MKS) as base units. Adopted in 1889, use of the MKS system of units succeeded the centimetre–gram–second system of units (CGS) in commerce and engineering.

Answer:

F = 19600 N

Explanation:

After reading this interesting exercise, I think you are missing the diagram, but we are going to solve them assuming the height of the hill, point A of about h = 100m.

Let's start by using the concepts of energy, to find the speed at the bottom of the hill

Starting point. Point A highest part of the colima

         Em₀ = U = m g h

Final point. Flat part.

         [tex]Em_{f}[/tex] = k = ½ m v²

as they tell us that there is no friction, energy is conserved

        Em₀ = Em_{f}

        mgh = ½ m v²

        v = √2gh

let's calculate

        v = √ (2 9.8 100)

         v = 44.27 m / s

Now we can use the scientific expressions, when it stops its speed is zero

         v² = v₀² - 2 a x

          0 = v₀² - 2ax

          a = [tex]\frac{ v_{o}^2 }{2x}[/tex]

          a = [tex]\frac{ 44.27^{2} }{ 2 \ 50}[/tex]

          a = 19.6 m / s²

with this acceleration we use Newton's second law

           f = m a

           F = 1000 19.6

           F = 19600 N

Answer:

True

Explanation:

The atomic mass of oxygen is 16amu, which means the molar mass, the mass of one mole of oxygen atoms (1 mole = 6.02x10²³), is 16g.

Answer:

B. The weight of rock 1 will be the greater than the weight of rock 2

Explanation:

We are told that the mass of rock 1 is greater than the mass of rock 2.

Now, weight is given by;

W = mg.

g is constant. Thus means that weight of rock 1 will be greater than weight of rock 2.

Answer:

24.8m/s

Explanation:

Given data

m1= 10kg

u1=25m/s

m2=17kg

u2=16m/s

v1=10m/s

v2=??

Applying the conservation of linear momentum

m1u1+m2u2=m1v1+m2v2

substitute

10*25+17*16=10*10+17*v2

250+272=100+17v2

522=100+17v2

522-100=17v2

422=17v2

Divide both sides by 17

v2= 422/17

v2= 24.8 m/s

Hence the velocity of the red cart is 24.8m/s in the opposite direction of the blue cart

Answer:

24 m/s

Explanation:

Using v = u + at where u = initial velocity of the motorboat = 0 m/s (since the boat starts from rest), a = acceleration = 4 m/s², t = time = 6 s and v = velocity of the motorboat after 6.0 s.

Substituting the values of the variables into the equation, we have

v = u + at

= 0 m/s + 4 m/s² × 6.0 s

= 0 m/s + 24 m/s

= 24 m/s

Answer:

Its B for your question

Explanation:

its B hope it helps

awnser:

C

Explanation:

An object accelerates in the same direction as that of force applied

Answer:

La magnitud de la fuerza de atracción entre las cargas es 0.648 newtons.

Explanation:

La fuerza eléctrica de atracción entre dos partículas cargadas eléctricamente es determinada por la ley de Coulomb, la cual dice que la fuerza eléctrica es directamente proporcional a la carga eléctrica e inversamente proporcional de la distancia entre las partículas. Matemáticamente hablando, la formula es descrita a continuación:

[tex]F = \kappa\cdot \frac{q_{A}\cdot q_{B}}{r^{2}}[/tex] (1)

Donde:

[tex]F[/tex] - Fuerza electrostática, medida en newtons.

[tex]\kappa[/tex] - Constante electrostática, medida en newton-metros cuadrados por Coulomb cuadrado.

[tex]q_{A}[/tex], [tex]q_{B}[/tex] - Cargas eléctricas, medidas en Coulomb.

[tex]r[/tex] - Distancia entre partículas, medidas en metros.

Si sabemos que [tex]\kappa = 9\times 10^{9}\,\frac{N\cdot m^{2}}{C^{2}}[/tex], [tex]q_{A} = 6\times 10^{-6}\,C[/tex], [tex]q_{B} = 3\times 10^{-6}\,C[/tex] y [tex]r = 0.5\,m[/tex], entonces la magnitud de la fuerza de atracción entre las cargas es:

[tex]F = \left(9\times 10^{9}\,\frac{N\cdot m^{2}}{C^{2}} \right)\cdot \frac{(6\times 10^{-6}\,C)\cdot (3\times 10^{-6}\,C)}{(0.5\,m)^{2}}[/tex]

[tex]F = 0.648\,N[/tex]

La magnitud de la fuerza de atracción entre las cargas es 0.648 newtons.

answer

block of aluminium

Block of aluminum investigating the densities of objects. She is going to use the table below to record her results.

A block of Aluminum is a block added by Tinkers' Construct. Block of Aluminum is primarily used as a storage block for Aluminum Ingots but may also be used as decoration.

Aluminum is used in a huge variety of products including cans, foils, kitchen utensils, window frames, beer kegs, and airplane parts. This is because of its particular properties.

Learn more about Blocks of aluminum at

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#SPJ2

Answer:

2 N/kg

- The explanation for it is quite complicated, especially to type it out but I hope this helps.

The magnitude of the gravitational field should be 2 N/kg.

Since Planet X has twice earths mass and three times earths radius.

So,

we know that  

[tex]g = GM\div r^2[/tex]

here, G = gravitational constant

M = mass of the planet

r = radius of the planet

So,

[tex]g\div gx = (M1\div M2) \times (r2\div r1) ^{2}\\\\9.8\div gx = (1\div 2) \times (3\div 1) ^2\\\\gx = 2.18 m/s^2[/tex]

So it is nearly 2 N/kg

hence, The magnitude of the gravitational field should be 2 N/kg.

learn more about mass here: https://brainly.com/question/93252

Answer:

B

Explanation:

Gravity, the attractive force between all masses, is what keeps the planets in orbit. Newton’s universal law of gravitation relates the gravitational force to mass and distance

The force of gravity is what gives us our sense of weight. Unlike mass, which is constant, weight can vary depending on the force of gravity (or acceleration) you feel. When Kepler’s laws are reexamined in the light of Newton’s gravitational law, it becomes clear that the masses of both objects are important for the third law, which becomes a3 = (M1+ M2) × P2. Mutual gravitational effects permit us to calculate the masses of astronomical objects, from comets to galaxies.

Answer:

b

Explanation:

Answer:

b

Explanation:

B is the answer because Selective breeding is taking two organisms and crossing them.

Answer: Scanning Tunneling Microscope

Explanation:

The answer is, of course, the greatest Star Trek fan art imaginable: images literally built out of individual atoms. The images are the work of IBM scientists who created the unique artwork with a two-ton machine called the Scanning Tunneling Microscope that moves single atoms across a tiny piece of copper.

Answer:

1.C70

2.Fullerene

3.Lonsdaleite

4.Graphite

5.Diamond

6.Amorphous carbon

I hope this helps. thank you

Explanation:

The compound of an element is arranged in a manner in more than one different form.

The example of an allotrope is as follows:-

The allotropes which are shown in the image is as follows:-

Hence, these are the allotropes.

For more information, refer to the link:-

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Explanation:

28 + 11 = 39

7 + 12 = 17

15 + 2 = 17

22 + 1 = 23

45 + 2 = 47

18 + 2 = 20

7 + 11 = 18

10 + 11 = 21

12 + 10 = 22

11 + 2 = 13

15 + 10 = 25

16 + 12 = 28

2 + 24 = 26

62 + 10 = 72

98 + 2 = 100

12 + 3 = 15

18 + 12 = 30

2 + 17 = 19

14 + 11 = 25

2 + 40 = 42

Answer:

Larynx.

Pharynx.

Lungs.

Diaphragm.

Explanation:

Answer:

Larynx, Pharynx, Lungs, and Diaphragm.

Explanation: