Sort each item to the correct location,
Geocentric Model or
heliocentric model.

The orbits of the planets are circular.

Earth is at the center of the solar system.

Includes five planets

The sun is the center of the solar system

The orbits of the planets are elliptical

Includes eight planets

Answer: 0.0528

Explanation:

acellus

Answer: Alternative D.

------------------------------------------------

To calculate the gravitational weight of other planets, the formula is used:

[tex]\large\boxed{{\mathbf{P = m \cdot g}}}[/tex]

Data:

Mass(m): 1000 N

Gravity(g): 0.61

Weight(p): ?

We replace data:

P = m × g

P = 1000 N × 0.61

P = 610 N

Result: Its weight on Pluto will be 610 Newtons (Alternative D).

Answer:

8

Explanation:

All noble gasses have 8 electrons in their outer shell

Answer:

Height of the building = 35.78 m

Explanation:

Given that,

The time period of a pendulum is, T = 12 s

We need to find the height of the building. The formula for the time period of a pendulum is given by :

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

Where

l is the height of the building

[tex]l=\dfrac{T^2g}{4\pi^2}\\\\l=\dfrac{(12)^2\times 9.8}{4\times 3.14^2}\\\\l=35.78\ m[/tex]

So, the height of the building is 35.78 m.

Explanation:

I believe it is b or c. most likely b

Answer:

1. 30,000 Kelvin, or 53,540 Farenheit, or 29,726 Celcius

2. i'm not sure, I'm sorry. I know that there are several, and one of them is helium.

3. This fusion changes the inner composition of the star, eventually it becomes a red giant or supergiant

Explanation:

Hope this helps :)

Answer:

608.9 nm

Explanation:

trust me cutie

The wavelength of light in nanometers is 0.017 x [tex]10^{3}[/tex] nm.

We have -

d = [tex]2.25\times 10^{-6}[/tex]

n = 1 = order

θ = 15.7 degrees

We have to calculate the wavelength of light (λ) in nanometers.

Diffraction is defined as the bending or spreading of light waves as it passes through the edge of an object or through a small slit (size of slit should be very very less then wavelength of light) is called diffraction.

According to the question, we can use the following relation to calculate wavelength as -

d sinθ = nλ

λ = [tex]\frac{dsin\theta}{n}[/tex]

λ = d sinθ               (since n = 1)

λ = [tex]2.25\times 10^{-6}[/tex] x sin (15.7)

λ = 0.0079 x 2.25 x [tex]10^{-6}[/tex]

λ = 0.0177 x [tex]10^{-6}[/tex] m

We know that -

1 nanometer = [tex]10^{-9}[/tex] m

1 m = [tex]\frac{1}{10^{-9} }[/tex]

0.017 x [tex]10^{-6}[/tex] m will be equal to = [tex]\frac{0.017\times 10^{-6} }{10^{-9} }[/tex] = 0.0177 x [tex]10^{3}[/tex] nm

Hence, the wavelength of light in nano meters is 0.0177 x [tex]10^{3}[/tex] nm.

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Answer:

high sunlight intensity

high wind speed

Explanation:

The environmental conditions in the UK on 7th June 2017 are improved because the electricity generation in the UK is done by the renewable sources of energy.

A renewable resource,  is a type of natural resource that will refill to replace the fraction destroyed by consumption  in a finite length of time in a human timescale, either naturally or other periodic processes.

The environmental conditions in the UK are improved on 7th June 2017 due to following reasons ;

1. The renewable energy sources create comparatively low amounts of Gas (GHG) emissions and traditional pollution,

2. During manufacture and transportation. They do emit some emissions and pollutants.

3. Using fossil fuels to generate electricity that creates no greenhouse gas emissions and lowers some forms of air pollution.

4. Increasing energy diversity and minimizing reliance on foreign fuels.

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Answer: 0.28 A

Explanation:

Answer:

v = 16.98 km/s

Explanation:

Given that,

Distance, d = 4500 km

Time, t = 265 s

We need to find its average speed. The total distance covered divided by total time taken is called average speed of an object. So,

[tex]v=\dfrac{4500\ km}{265\ s}\\\\=16.98\ km/s[/tex]

So, the average speed is 16.98 km/s.

Answer: [tex]30.09\times 10^{-15}\ C[/tex]

Explanation:

Given

The first charge is [tex]q_1=-6\ C[/tex]

Attraction force [tex]F=65\ N[/tex]

the second charge is at [tex]0.005\ m[/tex] away

Suppose the second charge is [tex]q_2[/tex]

The electrostatic force is given by

[tex]F=\dfrac{kq_1q_2}{r^2}[/tex]

Insert the values

[tex]65=\dfrac{9\times 10^9\times 6\times q_2}{[5\times 10^{-3}]^2}\\\\\Rightarrow q_2=\dfrac{65\times 25\times 10^{-6}}{54\times 10^9}\\\\\Rightarrow q_2=\dfrac{1625\times 10^{-6-9}}{54}\\\\\Rightarrow q_2=30.09\times 10^{-15}\ C[/tex]

Answer:

Fc = 4340,93 Newton

Explanation:

Dados los siguientes datos;

Masa = 900 kg

Velocidad, V = 50 km/h a metros por segundo = (50 * 1000)/(60 * 60) = 50000/3600 = 13,89 m/s

Radio, r = 40 m

Para encontrar la fuerza centrípeta;

Fc = mv² / r

Fc = (900 * 13,89²)/40

Fc = (900 * 192,93)/40

Fc = 173637/40

Fc = 4340,93 Newton

Answer:

9)  HIGHER  AND LOWER INTESITY, 10) speed of sound must decrease.

11) guitar the strings, flute,  12) In the mountains,  13) sound of a low frequency horn (sub-wofeer)

Explanation:

In this exercise we are asked to complete the sentences.

9) the intensity of the sound is the square of the amplitude, the missing words are

      HIGHER INTESITY

      LOWER INTENSITY

10) the speed of sound is

          v = [tex]\sqrt{\frac{B}{\rho} }[/tex]

and it is also related to temperature

         v = [tex]v_o \sqrt{1+ \frac{T}{273} }[/tex]

We must be careful since the compressibility modulus (B) changes significantly between the solid, liquid and gaseous states, if we are in the same medium, the speed of sound decreases with increasing density. For a higher density the speed of sound decreases

Also the speed of sound increases with temperature, but its effect is less,

Therefore, by having these two effects in the opposite direction, the change in density is more important, so the speed of sound must decrease.

.

11) when you listen to a guitar the strings resonate with the instrument body

   on the flute has a resonance between the blown air and the flute tube

12) When you are in front of a tall object, the sound is reflected and the echo is heard.

      In the mountains, in the squares where there is a large object that reflects in sound

13) when we hear the sound of a low frequency horn (sub-wofeer) we feel the vibration of the air, this is an effect of the pressure energy of the sound on our chest

Answer:

–40o

Explanation:

Answer:

50,000

Explanation:

when we say significant digits we mean the numbers that matter when stating the value of the number.

0.00030 can be written as 0.0003 without affecting it's value, the last zero is not significant.

50,000 all of the numbers here are significant to its value if we take away a zero it becomes 5,000 which is not equal to 50,000. so every digit here is significant

100.0300 can be written as 100.03 without loosing any value

500.00 can be written as 500 without loosing any value. ( think of this as $500.00, this also equals $500)

Answer:

c

Explanation:

because air have the fastest speed

Answer:

Use the drop-down menus to identify the parts of the diagram labeled A, B, and C.

Label A

✔ battery

Label B

✔ light or bulb

Label C

✔ switch

Explanation:

The parts A, B and C are battery, light bulb and switch respectively.

The electrical circuits are defined as the closed-loop or routes that create a web of electrical components through which electrons can move.

Here,

The given diagram is of an electric circuit.

Wires are used to construct this path, which is powered by a battery or another energy source.

Part A

The beginning of the point where electrons begin to flow is referred to as the source, known as the battery and the end of the point where electrons leave the electrical circuit is referred to as the return.

Part B

An electrically powered light bulb is a type of lighting source. By passing current through a small wire called a filament, light bulbs convert electricity into light. Tungsten is a substance that produces light when electricity is delivered through it, and this is often the material used to make the filament.

Part C

It is the switch. An electrical circuit can be broken by a switch by rerouting current from one conductor to another conductor or an insulator.

Hence,

The parts A, B and C are battery, light bulb and switch respectively.

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Answer:

A. 10

Explanation:

it increases by 10 each level

mark brainliest

Answer:

Sufrirá una deflección en su recorrido.

Explanation:

Las partículas alfa son nucleos de He (dos protones mas dos neutrones), por lo tanto tienen una carga neta positiva.

Ahora, al acercarse al nucleo de un átomo con muchos protones y con baja energía, la partícula alfa sufrirá una deflección en su recorrido debido a las fuerzas de repulsión electrostática que siente la partícula, ya que el nucelo posee caraga positiva.

Espero te haya sido de ayuda.

Answer:

Explain why it is not advisable to sterilise a clinical thermometer on boiling water at normal atmospheric temperature. A clinical thermometer has small temperature range. The glass will crack/burst due to excessive pressure created by expansion of mercury.

Answer:

R = 12 ohm

Explanation:

Resistance are in parallel

1 ÷ Resistance = 1 ÷ 20 + 1 ÷ 30

1/R = 50/600

1/R = 1/12

R = 12 ohm

Answer:

IMA = 3

Explanation:

Given the following data;

Distance covered by the effort or output distance = 120 m

Distance covered by the load or input distance = 40 m

To find the ideal mechanical advantage (IMA);

Mathematically, IMA is given by the formula;

[tex] IMA = \frac {distance \; over \; which \; the \; effort \; is \; applied}{distance \; the \; load \; travels} [/tex]

Substituting into the equation, we have;

[tex] IMA = \frac {120}{40}[/tex]

IMA = 3

Therefore, the ideal mechanical advantage (IMA) of this ski lift is 3.

NB: The ideal mechanical advantage has no units.

Answer:

Neodymium (Nd)

Explanation:

An element is made up of atom, which contains three subatomic particles namely; proton, electron, and neutron. In a neutral atom, the number of protons determines the atomic number of that element and the atomic number of an element is the identity of that element in the periodic table.

Hence, a change in the proton number of an element means a change in the atomic number and ultimately a change of that element. In this question, Europium (Eu) element with atomic number, 63, loses three protons. This means that that atom now has 60 protons, which denotes the atomic number of another element called Neodymium (Nd).

Therefore, Europium (Eu) element has become Neodymium (Nd) due to loss of protons.

Answer:

Enrique is the correct answer Hope it helps you have a good day

Answer:

enrique is correct

Explanation:

thw earth is bigger than the moon and closer to the sun therefore a shadow is cast from the earth onto the moon as it orbits around the earth

Answer:

29.7 m/s fast, velocity is 29.7 m/s

Explanation:

Applying,

v² = u²+2gs...................... Equation 1

Where v = final velocity, u = initial velocity, g = acceleration due to gravity, s = distance.

Given: u = 0 m/s (dropped from height), s = 45 m

Constant: g = 9.8 m/s²

Substitute these values into equation 1

v² = 0²+2×9.8×45

v² = 882

v = √(882)

v = 29.7 m/s.

Hence the stone will be moving 29.7 m/s fast and the velocity is also 29.7 m/s