6. The star nearest to our Sun is Alpha Centauri, which is 4.3 light years away. A light
year is the distance that light travels in one year. 1 light year is about
9,500,000,000,000kilometers. Again, use the unit cancelation technique:
How many astronomical units is it to Alpha Centauri? HELP

Answer:

Yes

Explanation:

Yes because Electromagnetic waves differ from mechanical waves in that they do not require a medium to propagate. This means that electromagnetic waves can travel not only through air and solid materials, but also through the vacuum of space.

The motion of the particles in this kind of wave will be option C that is The particles will move side to side over small areas.

A wave can be described as a disturbance that travels through a medium from one location to another location.

When Marcus plucks an outstretched coil, the coli sets into wave like motion that is oscillates to and fro. The particles of the medium do not move along the wave but just vibrate sideways about a fixed position.

The particles would move side to side over very small areas. Such type of wave is known as a mechanical wave. A Sound wave is a mechanical wave.

The particles vibrate in the direction of the motion of the wave. The wave carries forward the energy.

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Answer:

C is the correct answer. :)

Explanation:

Answer:

Solids liquids and gases

Explanation:

sound will not travel in a vacuum

When air rises in the atmosphere it gets cooler and is under less pressure. When air cools, it's not able to hold all of the water vapor it once was. Air also can't hold as much water when air pressure drops. The vapor becomes small water droplets or ice crystals and a cloud is formed.

I hope this helps you..

Let's see

m is mass and v is velocity

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[tex]Introducing \: \: a \: dielectric \: \: into \: \\ a \: \: capacitor \: \: decreases \: \: \\ the \: \: electric \: \: field, \: \: \\ which \: \: decreases \: \: the \: \: \\ voltage, \: \: \ which \: \: increases \: \: the \: \: \\ capacitance. \: \: A \: capacitor \: \: with \: a \: \\ dielectric  \: \: stores \: the \: \\ same \: \: \ charge \: \: as \: one \: \\ without \: \: a \: dielectric, \: but \: at \: \\ a \: \: lower \: \: voltage. \: \: \\ Therefore \: \: a \: \: capacitor \: \: with \: \: a \: \\ dielectric \: \: in \: \: it \: \\ is \: \: more \: \: effective \: [/tex]

[tex]\mathbb \blue{ I \: hope \: it's \: helpful \: \: for \: you }[/tex]

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Answer:

20m/s^2

Explanation:

F=ma, therefore 10N = 0.5kg * a. Solve for a.

Answer:

0.163934

Explanation:

Kinetic friction can be calculated by coefficient of kinetic friction * normal force. In this question the Mg is = to normal force (12.2 N). Therefore using sum of forces equations we get 2N = coefficient of kinetic friction * 12.2N. divide 2 by 12.2 to get the coefficient.

For Light of wavelength 630 nm (630 x 10-9 m) is used to produce a double slit diffraction pattern where the third order image is 0.10 m the distance of  the screen from the slits  is mathematically given as

D = 26m

Generally, the equation for the small-angle approximation  is mathematically given as

x = n(Landa)D/d

therefore,

D =  0.10x4.9 x 10-5/(3x630 x 10-9)

D = 26m

In conclusion, the distance of  the screen from the slits is

D = 26m

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Answer:

Option B

Explanation:

Option B

Answer is PHOTOELECTRIC EFFECT

Answer:

1.) Gas = Are the particles moving quickly in a radom pattern?

2.) Plasma = Are the particles electrically charged?

3.) Solid = Are the particles vibrating in a fixed position?

4.) Liquid = Are the particles sliding past each other?

Hope this helps!

Answer: 5.44 m/s

Explanation:

Given:

Mass of cart: 160 kg

Momentum of cart: 870 kg•m/s

[tex]$$Momentum $|\rho|=m \times v$$$\begin{aligned}&870 \ kg\cdot m/s=160 \mathrm{~kg} \times v \\&v=5.44 \mathrm{~m} / \mathrm{s}\end{aligned}$$[/tex]

Answer:

The momentum is defined as :

P=mv

Where m is the mass and v is the velocity. In this case we know the mass is 160 kg and the momentum is 870 kg plugging in this equation above and solving for the velocity we have

870=160V

V=870÷160

V=5.44

Therefore, the velocity of the cart is 5.44 m/s.

Answer:

Pls make me brainliest

Explanation:

the compression force is the force generated from compressing an object or substance. When shearing forces are aligned into each other, they are called compression forces.

The compression force is used to power everything from compression brakes to hand tools. The compressive strength of materials and structures is an important engineering consideration.

The compression force can be visualized by placing an object on a spring. When the spring is compressed and then released, the object is ejected into the air.

This is a result of the compression force that is generated from compressing the spring.

This system has a constant velocity, and there is an equilibrium because the tension in the cable, which is pulling up the object, is equal to the weight force, i.e., mg. Where M is a mass, and g is the acceleration caused by gravity, which is pulling down the object.

The Formula of Tension.

T = Mg

Tension word becomes from a Latin word meaning “to stretch.” Testing part of the force, Like one type of pull force. All physical objects that are in contact may exert forces on each other.

This contact forces different names based on these types of objects in contact. Where one of the objects exerting the force happens to be a rope, string, chain, or cable we call the force tensions

Answer:

333 mAmps      .33 A

Explanation:

v = ir

v/r = i

120 v / 360 ohm = .3333 A

Answer:

A). 0.33A

Explanation:

The force of gravity between them given the data from the question, would decrease by a factor of 4

F = GM₁M₂ / r²

Where

F = GM₁M₂ / r²

Cross multiply

Fr² = GM₁M₂

GM₁M₂ = constant

F₁r₁² = F₂r₂²

With the above formula, we can obtain the final force as follow:

F₁r₁² = F₂r₂²

F × r² = F₂ × (2r)²

Fr² = F₂ × 4r²

Divide both side by 4r²

F₂ = Fr² / 4r²

F₂ = F / 4

Thus, we can conclude that the final force will decrease by a factor of 4

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Answer:

hey

Explanation:

Displacement covered by the man calculated by using Pythagoras theorem is 10 km.

Pythagoras theorem states that, for a right-angled triangle, the square of the hypotenuse side is equal to the sum of squares of the altitude and base sides.

Here,

The Pythagoras Theorem can be written as,

c² = b² + a²

where c is the hypotenuse, b is the base and a is the altitude of the triangle.

An example of application of the Pythagoras theorem is,

A man started walking from his home and covered a distance of 8 km towards the east and then turned right and walked a distance of 6 km towards the south, what is his displacement now from his starting point ?

A line drawn from his current position and his initial point represents the displacement covered by the man.

Let the starting point be A, then he walks to the point B and then he turns right and walks upto the point C.

Drawing a figure including all the data, we get a right angled triangle, ABC. So,

The base of the triangle, BC = 6 km

Altitude of the triangle, AB = 8 km

The displacement of the man = hypotenuse of the triangle

d = AC

According to Pythagoras Theorem,

AC² = BC² + AB²

AC² = 6² + 8² = 100

AC = √100

Therefore, displacement, d = AC = 10 km.

Hence,

Displacement covered by the man calculated by using Pythagoras theorem is 10 km.

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Attaching the image file here.

In a circuit, when the electrical resistance increases, the current _______ because it is _______ for the electrons to flow.

[tex] \\ [/tex]

In a circuit, when the electrical resistance increases, the current decreases because it is blocking for the electrons to flow.

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Answer:

attract the magnetic ratio engine light of rock level

Answer:

I believe its either the 3rd or 4th one

Explanation:

I'm not sure if these are correct sorry if this is a false or unhelpful anwser

Answer:

1/2 watt hr    

Explanation:

watts = V I   =   6 * 5 = 30 watts   for 1/60 hr

30 watts * 1/60 hr = 1/2  watt hr

Answer:

C

Explanation:

a = v-u / t

a×t = v (u= 0 therefore is ignored)

2m/s² × 10s = v

v= 20m/s

Answer:

The theory is generally modified in light of this new evidence.

Answer:

2.25 billion years

Explanation:

i am smort

Answer:

See below    ( was it REALLY 1/4 INCH??)

Explanation:

Calculate the volume of the sphere

v = 4/3 pi r^3

 this times the density of the oil will give g displacement

   then f = ma

4/3 pi (.25 in  * 2.54 cm/inch) ^3  * .961 = 1.0307 gm

1.0307 gm   is   .0010307 kg

f = ma = .0010307 * 9.8 = .0101 N

Answer:

3 amps

Explanation:

V = IR

6 = I * 2

I = 3 amps

Answer:

He could use a really big pulley system or get in it and drive or call a tow truck.

Apply ohms law

Answer :-

Explanation :-

As per the provided information in the given question, we have been given that the Potential Difference is 240 Volt's . Resistance is given as 12 Ohm's . And, we have been asked to calculate the Current .

For calculating the Current , we will use the Formula :-

[tex] \bigstar \: \: \: \boxed{ \sf{ \: Current \: = \: \dfrac{Voltage}{Resistance} \: }} \\ [/tex]

Therefore , by Substituting the given values in the above Formula :-

[tex] \Longrightarrow \: \: \: \sf { Current \: = \: \dfrac{Voltage}{Resistance} } \\ [/tex]

[tex] \Longrightarrow \: \: \: \sf { Current \: = \: \dfrac{ \: 240 \: }{12} } \\ [/tex]

[tex] \Longrightarrow \: \: \textbf {\textsf { Current \: = \: 20 }} \\ [/tex]

Hence :-

[tex] \underline {\rule {180pt}{4pt}} [/tex]

Additional Information :-

[tex] \Longrightarrow \: \: \: \sf {Voltage \: = \: Current \: \times \: Resistance} [/tex]

[tex] \Longrightarrow \: \: \: \sf {Current \: = \: \dfrac {Voltage}{Resistance} } [/tex]

[tex] \Longrightarrow \: \: \: \sf {Resistance \: = \: \dfrac {Voltage}{Current} } [/tex]

Answer:

1 m/s=3.6km/her

56km/hr=?

=56km/hr×1m/s/3.6km/her

velocity is 15.5m/s

Explanation:

w=fs

a=v/t

a=15.5m/s/30s

a=465m/s^2

w=fs

w=0.02×