According to the Hertzsprung-Russell diagram, a star with a very high luminosity and a temperature of around 9000 K is most likely which type of star?

A. Main Sequence Star
B. Giant
C. Supergiant
D. White Dwarf ​

Answer:

Gaseous; liquid.

Explanation:

A planet can be defined as a large celestial body having sufficient mass to allow for self-gravity and make it assume a nearly circular shape (hydrostatic equilibrium), revolves in an orbit around the Sun in the solar system and has a cleared neighborhood.

Some examples of the planet are Mars, Venus, Earth, Mercury, Neptune, Jupiter, Saturn, Uranus, Pluto, etc.

Basically, the planets are divided into two (2) main categories and these includes;

I. Inner planets: these planets are the closest to the sun and comprises of mercury, venus, earth and mars.

II. Outer planets: these planets are beyond the asteroid belt and comprises of jupiter, saturn, uranus and neptune, from left to right of the solar system.

These outer planets are made mostly of gases (hydrogen and helium) causing them to be less dense than the solid inner planets. These gases are generally known to be less dense in terms of physical properties.

In conclusion, Planets in the solar system can vary from rocky and terrestrial objects to gaseous and liquid object.

However, the set of characteristics which is unique to the outer planets are gaseous and liquid.

Answer:

[tex]0.62\:\mathrm{s}[/tex]

Explanation:

Since the universal SI unit for velocity is meters/second, let's convert ft/s to m/s:

[tex]10\:\mathrm{ft/s}=3.048\:\mathrm{m/s}[/tex]

We can use the following kinematics equation to solve this question:

[tex]v_f=v_i+at[/tex]

What we know:

Solving for [tex]t[/tex]:

[tex]-3.048=3.048+(-9.8t),\\-6.096=-9.8t,\\t=\frac{-6.096}{-9.8}\approx \boxed{0.62\:\mathrm{s}}[/tex]

Answer:

white noise is a bunch of frequencies at the same time :)

Explanation:

Answer:

Explanation:

I can tell you what the answers for the middle column are, but if you don't know how to solve total energy problems, they won't make any sense to you at all.

First row, KE = 0

Second row, KE = 220500 J

Third row, KE = 183750 J

Fourth row, KE = 205800 J

That's also not paying any attention to significant digits because your velocity only had 1 and that's not enough to do the problem justice. I left all the digits in the answer. Round how your teacher tells you to.

Answer:

I think it's B , maybe wrong tho....

Answer:

Distance = 0.0052 m

Explanation:

Work =1.56J

Force = 300N

Distance = ?

Work=Force*Distance

1.56 J = 300N * Distance

1.56/300 = Distance

0.0052 m = Distance

Answer:

Explanation:

PE = [tex]\frac{1}{2}k[/tex](Δ[tex]x^2[/tex])

where k is the spring constant and Δx is the displacement of the spring when an object is hung from it. Plugging in:

[tex]PE=\frac{1}{2}(2.5)(.2^2)[/tex] which gives us

PE = .05 J

Answer:

24000N

Explanation:

The mass of the object stays the same, regardless of its gravitational field strength. But, weight=mass*gravitational field strength.

So, the gravitational field strength on Earth is 10N. 2400*10=24000.

hope this helps

Answer:

B. 0.552

Explanation:

To find the resistance in the circuit above, u simply divide the current in the circuit by the voltage to get the resistance.

Answer:

Because Jupiter is a much larger planet than Earth, its gravitational pull is 240% stronger than that of earth. This is why sawdust, which is lighter than its equivalent measure of sugar would weigh more on Jupiter.

Explanation:

Let's assume that a type of bag can contain 50 kilograms of sugar. If that same bag was filled up with sawdust instead, it would weigh far less than 50Kg.

If that bag of sawdust, on earth weighed 35Kg for instance, on Jupiter, the new weight would be:

35Kg x 2.4 = 84Kg

Put differently, Jupiter simply has a stronger gravitational pull than earth. This extra pull is attributed to its size.

Cheers

Answer:

30 N

Explanation:

The normal force is the component of a contact force that is perpendicular to the surface that an object contacts. This normal force prevents the surfaces from penetrating each other.

Let us assume that the acceleration due to gravity (g) is 10 m/s². Hence the weight of the book (W) is:

W = mass of book * acceleration due to gravity = 3 kg * 10 m/s² = 30 N

The normal force ([tex]F_n[/tex]) is gotten using:

Summation of vertical force = m[tex]a_y[/tex]

[tex]F_y=ma_y\\\\F_n-mg=0\\\\f_n=mg=3kg(10m/s^2)=30\ N[/tex]

The distance of the object from the mirror Is = –8 cm

The image distance from the mirror = –1.60cm

The magnification of the image = 0.20

The distance of the object from the mirror can be calculated using the formula below:

magnification= – image distance/ object distance

Substitute the available values into the equation above,

0.20 = – 1.60/ X

Make X the subject of formula,

X = – 1.60/0.20

X = – 8cm

The negative sign indicates that the image is virtual which is formed behind the mirror.

Therefore, the distance of the object from the mirror Is = –8 cm.

Learn more about mirror equations here:

https://brainly.com/question/26257987

Answer: The statements are missing hence I will give you a summary of what the big bang theory .

answer : The big bang theory explains how the energies of every speck of the universe came together at a point ( very dense point ) and eventually exploded creating the various galaxies we have today

Explanation:

The Big bang theory describes how the Universe and the various galaxies that exist began some billion of years ago, It describes how the energies of every speck of the universe came together at a point ( very dense point ) and eventually exploded creating the various galaxies we have today

Answer:

I was going to give you the paper where I saw it but since you are not giving enough points I can not give you so I am only going to give you some of these that are here sorry

Explanation:

1.

[tex]9^{2} + 12^2 = x^2\\81 + 144= x^2\\\sqrt{225} = \sqrt{x} \\ 15=x\\\\ 2.\\x^2+12^2+=13^2\\x^2+144 =169\\x^2 = 25\\\sqrt{x^2 =\sqrt{25\\\\[/tex]

x=5

[tex]3.\\12^2+32^2 = x^2\\34.176= x[/tex]

7.

5,12,13

9.

[tex]\frac{x}{4} ,\frac{12}{4} ,\frac{20}{4}\\\\\frac{x}{4},3,5 \\\\x=16\\\\12. \\x^2 + 48^2=50^2\\\\x^2=196\\x=14[/tex]

Answer:

Explanation:

That is a fun question!

Without a hot radiating core like Earth, Mars will have very different geological and seismic events. The Mars core will be relatively cold and there will not be any molten magma. So Mars will not have earthquakes or volcano activities. Both only occur when there is magma flowing or tectonic plate motion and they will not occur with a cold core.

Answer:

a) 3.9 x 10⁻⁵ kg

Explanation:

The amount of mass required to produce the energy can be given by Einstein's formula:

[tex]E = mc^2\\\\m = \frac{E}{c^2}[/tex]

where,

m = mass required = ?

E = Energy produced = 3.5 x 10¹² J

c = speed of light = 3 x 10⁸ m/s

Therefore,

[tex]m = \frac{3.5\ x\ 10^{12}\ J}{(3\ x\ 10^8\ m/s)^2} \\\\m = 3.9\ x\ 10^{-5}\ kg[/tex]

Hence, the correct option is:

a) 3.9 x 10⁻⁵ kg

Answer:

Interference

Explanation:

Interference is the phenomenon in which two waves superimpose to form a wave with smaller, larger or same amplitude.

There are two types of interference namely, constructive interference and destructive interference.

Constructive interference occurs when the waves are in phase and destructive interference occurs when the waves are out of phase.

In a double slit experiment, the two slits acts as sources of light and thus the waves combine to produce interference patterns. When the waves are in phase, that is the angle between them is 0°, they form a constructive interference pattern which gives rise to a light band. When the waves are out of phase, that is the angle between them is 180°, they form a destructive interference pattern which gives rise to a dark band.

Note also that diffraction patterns are also observed for wide slits but can be neglected for smaller slits.

Answer:

the speed of the wave is 0.65 m/s

Explanation:

Given;

distance between two successive crests, λ = 1.4 m

number of crests, n = 8

number of waves formed = 7

The total distance covered by the wave, d= 7λ = 7 x 1.4 = 9.8 m

time of motion of the wave, t = 15 s

The speed of the wave is calculated as;

V = d/t

V = 9.8 / 15

V = 0.65 m/s

Therefore, the speed of the wave is 0.65 m/s

Answer:

Hi, there your answer is False

Explanation:

Answer:

Answer is gonna be B. 2N

This is the Answer for your question :3

I hope you are having a great day ❤️❤️❤️❤️

The resultant force is indeed the single force and corresponding tension derived by vector addition when combining any system of torques acting on a solid body.

Therefore, the final answer is "Option b".

Learn more:

brainly.com/question/23869482

Answer:

El observador verá correr al perro sobre la cubierta del barco a una velocidad de 40 kilómetros por hora.

Explanation:

Para determinar la velocidad del perro con respecto al observador sentado desde la playa a través del concepto de velocidad relativa, descrito en la siguiente fórmula:

[tex]v_{P/B} = v_{P} - v_{B}[/tex] (1)

Donde:

[tex]v_{P/B}[/tex] - Velocidad del perro relativo al barco, en kilómetros por hora.

[tex]v_{P}[/tex] - Velocidad del perro con respecto al observador, en kilómetros por hora.

[tex]v_{B}[/tex] - Velocidad del barco con respecto al observador, en kilómetros por hora.

Si sabemos que [tex]v_{B} = 30\,\frac{km}{h}[/tex] y [tex]v_{P/B} = 10\,\frac{km}{h}[/tex], entonces la velocidad del perro con respecto al observador es:

[tex]v_{P} = v_{B} + v_{P/B}[/tex]

[tex]v_{P} = 30\,\frac{km}{h} + 10\,\frac{km}{h}[/tex]

[tex]v_{P} = 40\,\frac{km}{h}[/tex]

El observador verá correr al perro sobre la cubierta del barco a una velocidad de 40 kilómetros por hora.

Answer:

That's true

Explanation:

I've gotten it right

Answer:

magnification is 4

Explanation:

m= image height / object height

m= 12/3

m= 4

Ans: The velocity of the bobsled at the bottom of the hill is = 57.7 [tex]\frac{m}{s}[/tex]

Explanation: (see image attached)

Hope this helps! Good luck with future work! :)

Answer:

D 75

Explanation:

I'm pretty sure it's just 5x15=75

Answer:

the answer would be 3/s^2

Explanation:

because all u have to do is divide 15 by 5 and u would get 3

Answer:

When the circuit breaker trips and turns off, it can shut off power to the appliance. This not only protects your home from damage, but it also protects the appliance itself.

Explanation:

What is a circuit breaker. A circuit breaker is an electrical switch designed to protect an electrical circuit from damage caused by overcurrent/overload or short circuit. Its basic function is to interrupt current flow after protective relays detect a fault.

Answer:

vertical force=50

horizontal force=35