What are the main pieces of evidence we use to differentiate a black hole binary from a neutron star binary

Answers

Answer 1

Answer:

Black hole accretion disk emit in the X-rays but neutron star disks are cooler

Hope this Helps


Related Questions

a helicopter cruises at a constant velocity when the total thrust of the engines is 5,000 N. How much air resistance acts on the jet ??

Answers

Hi there!

[tex]\large\boxed{F_{A} = -5000N}}[/tex]

For an object to be moving at constant velocity:

∑F = 0 (The sum of the forces acting on the object MUST be 0 N)

We can do a summation of forces for this helicopter in the HORIZONTAL direction:

∑Fₓ = Ft (Force of Thrust) + Fa (Force of air resistance) = 0

Thus, if we substitute in the given value for Ft:

Ft = -Fa

5000N = -Fa

Fa = -5000N

PLEASE HELP! I NEED TO ANSWER THIS QUICKLY!
1. What are the uses of microwaves in society today? Give examples
2. What advantages and/or disadvantages have microwaves as a technology had for humans
a) health b) economy and c) human living conditions?

Answers

Answer:

I'm not a genius ok?

Explanation:

1. Radar communication, Analysis of the molecular and atomic structure, telephone communication

2. c

A 29000-kg open railroad car, initially coasting at 0.825 m/s with negligible friction, passes under a hopper that dumps 117500 kg of scrap metal into it.

a)What is the final speed, in meters per second, of the loaded freight car?
b)How much kinetic energy is lost, in joules, when the freight car receives this scrap metal? Ignore the free-fall kinetic energy of the scrap metal.

Answers

Answer:

a) Answer: 0.16331 m/s

b) Answer: 8522.66 joules

Explanation:

The final speed is  0.1633 m/s.

When the freight car receives this scrap metal, 7915.72 Joule kinetic energy is lost.

What is momentum?

A body has momentum while it is moving, according to our understanding. It is said that a body's momentum is equal to the sum of its mass and speed. A body's direction is important when discussing momentum. Its direction belongs to the body's direction of motion.

(a) Given parameter:

Mass of the railroad car, M = 2900 Kg.

Mass of the scrap metal, m= 11750 Kg.

Initial speed of the car, u = 0.0825 m/s.

Initial speed of the scrap metal = 0 m/s.

Final speed of the system, v = ?

Then, initial momentum of the  system = initial momentum of the car +  initial momentum of the scrap metal .

= (29000×0.825 + 117500×0) kg.m/s.

= 23925 kg.m/s.

Final momentum of the system = total mass of the system× final speed

= (29000 + 117500)× v kg.m/s

= 146500v kg.m/s.

Hence, from principle of conservation of momentum,

initial momentum of the  system = Final momentum of the system

⇒ 23925 = 146500v

⇒ v = 0.1633 m/s.

The final speed of the  loaded freight car is 0.1633 m/s.

(b) Lost in kinetic energy = initial kinetic energy of the car - final kinetic energy of the loaded car.

= 1/2*29000*0.825² -1/2*(29000 + 117500)* 0.1633² Joule.

= 7915.72 Joule.

Hence, 7915.72 Joule kinetic energy is lost in this process.

Learn more about momentum here:

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A car was driving at a speed of 10 m/s. In 3 seconds, it accelerated to a speed of 50 m/s. Calculate the car's acceleration.

30 m/s2

16.7 m/s2

13.3 m/s2

Answers

Answer:

[tex]\boxed {\boxed {\sf 13.3 \ m/s^2}}[/tex]

Explanation:

Acceleration is the rate of change of velocity with respect to time. It is the change in velocity over the change in time, and it is calculated using the following formula.

[tex]a= \frac{ v_f-v_i}{t}[/tex]

The car starts at a speed of 10 meters per second, then it accelerates to a speed of 50 meters per second. It achieves this acceleration in 3 seconds.

[tex]v_f[/tex]= 50 m/s[tex]v_i[/tex]= 10 m/s t= 3 s

Substitute the values into the formula.

[tex]a= \frac{50 \ m/s - 10 \ m/s}{3 \ s}[/tex]

Solve the numerator.

50 m/s -10 m/s= 40 m/s

[tex]a= \frac{40 \ m/s}{3 \ s}[/tex]

Divide.

[tex]a= 13.3333333 \ m/s/s[/tex]

[tex]a \approx 13.3 \ m/s^2[/tex]

The car's acceleration is approximately 13.3 meters per second squared.

A balloon with a volume of 2. 0 L at 25°C is placed in a hot room at 35°C. The pressure on the balloon is constant at 1. 0 atm. How does the volume of the balloon change after moving it to the hot room?.

Answers

Answer:

25A°C=2L

35A°C=? More

=35/25×2L

=7/5×2L

=14L/5

=2.8L

A plane flying above the ground has 60,000 joules of kinetic energy and 6,000 joules off gravitational potential energy. How much mechanical energy does the plane have?

Answers

Answer:

66,000J

Explanation:

Mechanical energy = Gravitational energy + Kinetic Energy

ME = 6,000 + 60,000 = 66000 J

A wrecking ball has a mass of 650 kg. It swings from a cable that is 21 m long. The centripetal force on the ball is 56 N. What is the tangential speed of the wrecking ball? 1. 3 m/s 1. 8 m/s 46 m/s 870 m/s.

Answers

Hi there!

For an object moving in a circle:

Centripetal force = ∑F = mv²/r

Thus:

56 = mv²/r

Rearrange to solve for velocity:

√(56r/m) = v

√(56 × 21)/650 = 1.345 m/s

Answer:

A

Explanation:

have a good day

Please help, and give an explanation on what you did. Thanks a lot :]​

Answers

Answer:

3.0 m

Explanation:

The height of the wave is just 1.5 m + 1.5 m which equals 3.0 m

How would the gravity between two objects change if one object got bigger?

Answers

The correct answer is the 3rd answer, gravity would increase its pull on the small object

hope this helps! :)


Usain Bolt has a mass of 94.1 kg and he had a KE of 7,250 J when running the one hundred meter dash. Calculate how fast he was running

Answers

Answer:

[tex]\displaystyle v = 12.4134 \ m/s[/tex]

General Formulas and Concepts:

Energy

Kinetic Energy Formula: [tex]\displaystyle KE = \frac{1}{2}mv^2[/tex]

m is mass (in kg)v is velocity (in m/s)

Explanation:

Step 1: Define

Identify variables.

KE = 7250 J

m= 94.1 kg

Step 2: Solve for v

Substitute in variables [Kinetic Energy Formula]:                                       [tex]\displaystyle 7250 = \frac{1}{2}(94.1)v^2[/tex]Isolate v term:                                                                                               [tex]\displaystyle 154.091 = v^2[/tex]Isolate v:                                                                                                         [tex]\displaystyle v = 12.4134[/tex]

Topic: AP Physics 1 - Algebra Based

Unit: Energy

What is the only force that can overcome the repulsion between two positively charged nuclei to bind them into an atomic nucleus

Answers

Answer:

Nuclear Fusion

Explanation:

At large distances, two nuclei repel one another because of the repulsive electrostatic force between their positively charged protons. If two nuclei can be brought close enough together, however, the electrostatic repulsion can be overcome by the attractive nuclear force, which is stronger at close distances.

Part B
Based on the information in the article, how could plants be used in the future to help counteract some human
emissions?

Answers

Answer:

Having more plants performing photosynthesis could help reduce the amount of carbon dioxide in the atmosphere.

Explanation:

sample answer

The plants can be used in the future to help counteract some human

emissions they absorb carbon dioxide from the air and release oxygen.

What is photosynthesis?

It is a process carried out by photosynthetic autotrophic organisms, such as plants, algae and some prokaryotes. These organisms capture sunlight, convert it into chemical energy, which will be used to produce organic compounds, based on water and carbon dioxide.

Trees, like other plants, in the process called photosynthesis, absorb carbon dioxide from the air and release oxygen. They also make the air wetter and cooler. In this way, plants contribute to the good quality of the air we breathe.

See more about phtosynthesis at brainly.com/question/1388366

Balanced forces are forces that have equal amount of ________. (word choices: force, repel, attract, motion)

Answers

Answer:

a

Explanation:

if forces on an object are balanced a moving object continues to move at the same speed and in the same direction

A ball is released freely from the top of a building 80m high. Find its speed.​

Answers

At the top of the building, the speed of the ball is zero.

The speed increases steadily as the ball falls.

When it hits the street, its speed is 39.6 m/s.

helppp
A crane accelerates a 175 kg load is upward. The tension in the cable is 2000 N. Find the magnitude and direction of the elevator's acceleration.​

Answers

Hi there!

We can begin by summing forces acting on the load:

∑F = T - Mg (where g ≈10 m/s²)

ma = T - Mg

We can plug in the given values to solve:

ma = 2000 - 175(10)

175a = 250  

a = 250/175 = 1.43 m/s² UPWARDS

Answer:

a = 1.63 m/s^2

Explanation:

m = 176kg

Ft = 2000N

  2000 = 175 (9.8) +175(a)

    2000   = 1715 +175a

    -1715       -1715

285 = 175a

175     175

a = 1.63m/s^2  

5. SEP Construct Explanations If the line on
a distance-versus-time graph and the line on
a speed-versus-time graph are both straight
lines going through the origin, can the two
graphs be displaying the motion of the same
object? Explain.

Answers

Answer:

If and only if the object has 0 speed. Any other case is a no.

Explanation:

In increasing math complexity:

If the graph of a distance/time is a straight line with a non-zero slope it means that the velocity-time graph is an horizontal line where every point has the same second coordinate, equal to the value of the slope of the first line (ie, if the first line has equation [tex]y=2t[/tex] the second line will have equation [tex]y=2[/tex] - I'm using y to denote either the distance or the speed, read it as "the non-time variable")

If the graph of a speed/time is a straight line, the graph of the distance/time is the area of the region of space beneath the straight line in the first graph, ie a triangle. And as you increase the sides of that triangle keeping the angles fixed, you get a parabolic curve.

Bonus case: if [tex]v(t)= 0; d(t) = 0[/tex], they are both straight lines, they both pass through the origin, and they are the exact same line.

With calculus (or: math becomes fun after you add the alphabet to it)

You are asking if the answer of the IVP

[tex]\left \{ {{x'=x} \atop {x(0)=0}} \right.[/tex]

is a linear function. The answer is: besides the obvious [tex]x(t)'=x(t)=0 \ \forall t[/tex] there are no other solutions, linear or otherwise.

change 176°F to the Celsius and Kelvin scales. pura batana kese hua fir answer dena plzz​

Answers

Formulas change from F to degree C : C = (F – 32) / 1.8

so we have (176-32) /1.8= 80 oC

Formulas change from F to degree K : K = 5 / 9 x (F – 32) + 273.15

so we have 5/9 x (176-32) + 273.15 = 353 oK

ok done. Thank to me :>

What is the velocity of a ball swung around on a rope with a
radius of 0.25 meters and period of 0.40 seconds?

Answers

A ball swung around on a rope of a radius of 0.25 meters in a time of 0.40 seconds, then the velocity of the ball will be equal to 3.925 m/s.

What is velocity?

Velocity is the rate of change of a traveling object's direction, as measured by a certain unit of time and as seen from a specific vantage point. Speed is a basic concept in kinematics, the branch of special relativity that studies how bodies move.

A scientific vector quantity called velocity must have both a magnitude and direction to be described.

As per the data provided in the question,

Radius, r = 0.25

Time, t = 0.40 seconds

Circumference of the circle, d = 2πr

d = 2π(0.25)

d = 1.570 m

Velocity, v = d / t

v = 1.570 / 0.40

v = 3.925 m/s.

Therefore, the velocity of the ball will be 3.925 m/s.

To know more about Velocity:

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60W light bulb is left on for 5mins. How much energy does it use in KWH

Answers

Answer:

Energy = Power × Time

time must be hoursPower must be in kilowatts

[tex]{ \tt{E = ( \frac{60}{1000} ) \times ( \frac{5}{60}) }} \\ \\ { \tt{E = 0.005 \: kwh {}^{ } }}[/tex]

How long does it take a plane, traveling at a constant speed of 200 m/s, to fly once around a circle whose radius is 2750 m

Answers

Answer:

2000 and 156300

jade it jawaban nya

help with this question

Answers

Answer:

D and B.

Explanation:

The wavelength must be taken from the same corresponding point. D and B are both at the crests of a wave, with no other crests in between, which means the distance between them is equal to one wavelength.

The ______________ is all the surroundings of a living organism.

genetics
environment
temperature
heredity

Answers

The environment is all the surroundings of a living organism

How much force is needed to accelerate a 70 kg rider and the 200kg motorcycle the
rider is on at 4m/s?

Answers

Answer:   F = (200 kg + 70 kg) * 4 m/s² = 270 kg* 4m/s² = 1080 N

Answer:

F = 1080 N

Explanation:

Who is the author "talking” to in the third stanza of Flanders field

Answers

I’m not sure if it’s correct but here u go

In Flanders Fields” is written in the voice of a group of soldiers who have recently died in a World War I battle. By speaking as a group and asking the reader to join in their struggle, these speakers suggest that war is a shared responsibility that affects everyone.

Answer:

One of Canada's best-known poems, “In Flanders Fields” was written on May 2, 1915, when Canadian serviceman John McCrae was stationed at an army hospital in Flanders, Belgium, during World War I.

Explanation:

Which element is in the 3rd period and group 16?

Answers

Answer:Thus for n=1 number of electrons is 2 and for n=2 the number of electrons is 8. Hence the electronic configuration of the element X is 2,8,6 and its atomic number is 16. In the Modern Periodic Table, the element Sulphur has atomic number 16. So, the solution is that the element X is Sulphur and it is non metallic.

Answer:

Explanation:

Answer: Thus for n=1 number of electrons is 2 and for n=2 the number of electrons is 8. Hence the electronic configuration of the element X is 2,8,6 and its atomic number is 16. In the Modern Periodic Table, the element Sulphur has atomic number 16. So, the solution is that the element X is Sulphur and it is non metallic.

A car takes 9 m to stop after the driver applies the brakes.

The brakes exert a force of 2000 N.

Calculate how much work is done by this force.

Answers

Depends upon how soon you want to stop. You know the mass of the car, you know the initial velocity of 8.9 m/s. You know the final velocity which is zero. You can now calculate the deceleration of the car if you know how soon you want to stop.

Let's say you want to stop in one second.

a = (vf - vi) / t = - 8.9 m/s^2 (negative sign indicates deceleration).

F = ma = 800 x 8.9 = 7120 Newtons (kg*m/s^2)

We are able to walk toward because…

a) we push on the air
b) we push on the ground
c) the air pushes on us
d) the ground pushes on us

Answers

The answer is C because of gravity

We are able to walk toward because b) we push on the ground.

_

_

_

[tex] 😘 \: 😉 \: 😈 \; 😫 \: 😤 \: 😡 \: 😘[/tex]

An 8kg mass is placed on a 30 degrees frictionless inclines plane and is attached to a pulley to a hanging mass of 5kg
Calculate which direction will the system flow
B)what is the acceleration
C)the tension in the rope

Answers

Hi there!

We can begin by doing a summation of forces. Let the acceleration be positive in the direction of the DOWNWARD movement of the hanging block.

(A)

The system will flow in the direction of the hanging block's movement downwards.

(B)

Summation of forces of block on incline:

∑F = -M₁gsinФ + T

Summation of forces of hanging block:

∑F = M₂g - T

Sum both summations:

∑F =  -M₁gsinФ + T + M₂g - T

∑F = M₂g -M₁gsinФ

According to Newton's Second Law:

∑F = ma

Thus:

(M₁ + M₂)a = M₂g -M₁gsinФ

[tex]a = \frac{M_2g -M_1gsin\theta}{M_1 + M_2}[/tex]

Plug in the values:

[tex]a = \frac{(5 * 9.8) -(8 * 9.8 * sin30)}{8 + 5} = \large\boxed{0.754 m/s^2}[/tex]

(C)

Calculate the rope's tension using one of the above equations:

∑F₂ = M₂g - T

Rearrange for T:

T = M₂g - m₂a

Plug in values:

T = 5(9.8) - 5(0.754) = 45.23 N

Which country is considered to have one of the best ski teams in the world?

Answers

Answer:

France

Explanation:

France is the undisputed champion in the world of skiing.

If a 5.00 kg box slides down a ramp inclined at 60.0° above the horizontal, what is the

acceleration of the box

Answers

Answer:

A 70 kg box is slid along the floor by a 400 n force. The coefficient of friction between the box and the floor is 0. 50 when the box is sliding

Other Questions
Sociology Practice answer for other people :)1) Deborah Tannen, a professor of linguistics, studied forms of social interaction in American culture. She suggested Americans live in an argument culture where the dominant forms of social interaction are conflict and competition. The argument culture states that members of the American culture have conflicting ideas, and competition leads them to want to prove their ideas are best. If you could develop your own culture, which dominating form of social interaction would you choose ? Why? CORRECT ANSWER: Because of exchange, conflict, cooperation, competition, and accommodation. For example, selecting cooperation as the dominant social interaction. By selecting cooperation, social interaction amongst people focuses on working together to achieve a goal that benefits more than one person. Cooperation leads to the solving of conflict in a calm and effective manner, rather than using violence or force.2) The argument culture is typically learned at an early age.Please select the best answer from the choices provided CORRECT ANSWER: True3) Conflict can strengthen group loyalty.Please select the best answer from the choices provided CORRECT ANSWER: True4) The argument culture does not accommodate for conflicting views.Please select the best answer from the choices provided CORRECT ANSWER: False5) Which of the following is not a form of accommodation? CORRECT ANSWER: B) Control6) Cooperation is a social process that gets things done. Describe when cooperation occurs. CORRECT ANSWER: Cooperation occurs when two or more people or groups work together to achieve a goal that will benefit more than one person.7) What are five of the most common forms of social interaction that take place in societies throughout the world? CORRECT ANSWER: Most common forms of social interaction that takes place in societies thought the world are:Cooperation, Conflict, Accommodation, Competition, Obstruction.8) Which of the following is part of the basis of a capitalist economic system? CORRECT ANSWER: A) competition9) The rules of conduct are never ignored in a conflict.Please select the best answer from the choices provided CORRECT ANSWER: False10) Explain reciprocity. CORRECT ANSWER: "In cultural anthropology and sociology, reciprocity is a way of defining people's informal exchange of goods and labour; that is, people's informal economic systems. It is the basis of most non-market economies. Since virtually all humans live in some kind of society and have at least a few possessions, reciprocity is common to every culture.GOT 100% ON EDGE 2021 HURRYWhat type of reaction is this? 2H2 + O2=>2H 20 + EnergyA. Exothermic reactionB. Endothermic reactionC. Chemical reaction D. Nuclear reaction PLZZZ HELP ASAP I NEED IT FAST! At which place on the map below would volcanoes most likely occur? Please note that the letters do not represent a plate but a specific place.Point APoint BPoint DPoint Cplease don't just put a random answer What is it called when the government prevents the media from publishing information, rather than punishing it for breaking laws after the fact Both the Speaker of the House and the lieutenant governor help ensure that allies on committees are able to carry out their agendas. This is best known as which power? identify the nations that made up the triple alliances I need a genius to help me fix my device settings and so I can start helping others ! which electrode serves as the anode, and which as the cathode? An environmental factor such as storms and extreme heat or cold that affectspopulation regardless of their density If I have 4 magazines, and each magazines has 13 bullets, And there are 30 people in class and you need 4 bullets for each person. How many people get 4 bullets. this planet has a very toxic atmosphere that traps heat, making it the hottest planet in the solar system. What is the slope of the line that passes through the ordered pairs(1,14)and(5,34)? POSSIBLE POINTSRead the passage and answer the question.1. Matthew and Jaylen live in the same town, but Matthew just moved there from another country2. Jaylen has lived in the town his whole life.3. They attend the same mosque.4. When Matthew went to Jaylen's home for dinner, he tried many new cultural dishes from the region.5. Later, Matthew invited Jaylen over to share in his favorite cultural foods and listen to music from his home country.6. Jaylen has helped Matthew adapt to his new home by showing him how to dress like a local and showing him around townWhich statement about Matthew and Jaylen is correct?O Matthew and Jaylen are different ethnic groups but follow the same religion.O Matthew and Jaylen are the same ethnic groups and follow the same religionO Matthew and Jaylen are the same ethnic groups but follow different religionsO Matthew and Jaylen are different ethnic groups and follow different religions12 3456 7 8 Which revolution was a direct result of, or caused by, the other 3 revolutions? SnackTime Foods produced 3,181,990 grams of popcorn last year, which was placed in 7- gram bags. How many bags did the company fill? bags Submit Biology A Semester Exam4 of 284 of 28 ItemsYou find a blog post written by a student on a university website about photosynthesis. Assess the reliability of this source.(1 point)It may be reliable because the blog has been featured on a popular website.It may be reliable because they cited multiple high-quality studies from scientific journals.It may be reliable because other students verify the information in the blog.It may be reliable because they cited other student blogs. Based on the excerpt, what does the speaker think of his neighbor? He is stubborn. He is interesting to talk to. He is a quick worker. He is disorganized. (-5,1) and (-5,4) what is the slope of the line that passes through the given points A rhombus is a special parallelogram. Which are true about a rhombus that is not true about all parallelograms? Pick up to 3 answers. A. Diagonals create a right angle where they interesect B. All sides are congruent C. Diagonals bisect vertex angles D. Diagonals are congruent E. Opposite angles are congruent