Radio telescopes are said to "listen" to space because...
1. they monitor sound waves
2. they detect radio waves
3. they detect electromagnetic waves
4. they detect only aural EM waves​

Answers

Answer 1

Answer:

2 they detect radio waves


Related Questions

Ill mark the brainliest pls lmk what answer ty

Answers

2800 m

Further explanation

Given

time = 80 s

average velocity = 35 m/s

Required

total distance before it broke down

Solution

Average velocity : total displacement : total time

Can be formulated

avg velocity = Δx : Δt

Input the value :

Δx=avg velocity x Δt

Δx = 35 m/s x 80 s

Δx = 2800 m

In addition, if we are asking for velocity, we must know the starting and ending points (displacement)

But if we calculate the total distance, what is written is the average speed

avg speed = total distance : total time

True or False

Chemical reactions in batteries produce a voltage difference between the positive
and negative terminals.

Answers

Answer:

true

Explanatiohope this helps

Which model shows how a comet's tail changes during its orbit?

Answers

Third model shows how a comet's tail changes during its orbit...

mark brainliest

A comet tail changes during its orbit

Hi!! Please Answer this question, & it would be AWESOME, LIKE REALLLYY AWESOME If you could send me a picture with the graph! (You'll get 85 Points, Thats a lot too!)

I realllyy need help with this, I don't know how to draw it! Please help me, If you do, I'll be sure to give you prayers for the good help you gave me, & Pay you back in return! you'll be a livesaver if you send me a picture! :)

Answers

Answer:

Is there a map of the town? It doesn't make sense without coridnates or street lengths. If it was a straight isosilese triangles the return time is 3:36pm. This answer doesn't make sense if there is a map.

Explanation:

Side a is 12km Side b 15 km Side c 19.21 km.

9am depearture

11am 12km away rest

11:30am starts at 10 km/h

1:00 pm reaches town

2:00pm done lunch

3:36 pm return home.

Some one plz help me and I will give you brainliest plz

Answers

It’s more in the 23N range.

Oh no! The Hulk just fell off the Empire State Building! Calculate how long it took him to fall straight down from the top of the Empire State Building, which is 380 m high.

If you can provide some, explanation I will greatly appreciate it.

Answers

Answer:

8.803 s

(but this is only if it's a free fall, which we assume since we didn't get the mass of the hulk)

Do you hear sounds around you as one frequency at a time or as many frequencies at once?

Answers

Answer:

The commonly stated range of human hearing is 20 Hz to 20 kHz. Under ideal laboratory conditions, humans can hear sound as low as 12 Hz and as high as 28 kHz, though the threshold increases sharply at 15 kHz in adults, corresponding to the last auditory channel of the cochlea.

Explanation:

hope it help

mark me as brainliest

Answer:

20 Hz to 20 kHz. Humans can hear sound as low as 12 Hz and as high as 28 kHz, though the threshold increases sharply at 15 kHz.

Explanation:

learned this in physics about 2 years ago and its stuck with me ever since lol. sorry i am not the best at explaining lol

What happens to the number of daylight hours as Earth moves in its orbit from winter to spring?

Answers

Answer:

The earth is exposed much more during the summer the hours of daylight is increased slightly

Explanation:

why would a bouncing ball eventually stop bouncing?

Answers

The bouncing ball stops bouncing because of mainly three factors :
1. Friction
2. Gravity
3. Decrease in potential energy

The force of gravity pulls it down, and as the ball falls, its potential energy is converted to kinetic energy. When you drop the ball from a certain height, the potential difference is at its extreme point. When the ball hits the ground, the potential energy naturally decreases, which stops the ball from bouncing after a while.

PLEASE HELP ASAP! i will really appreciate it

Answers

What you’re doing is so easy pay attention more I think

Which layer in the image above represents the layer of the Earth composed of liquid metal? *

Answers

Answer:

4

Explanation:

Milk being heated on top of a stove will do what?

Group of answer choices

Expand

Contract

Stay the same

Answers

The answer would be Expand because when a liquid is heated the molecules expand

Hope this helps

Have a great day/night

which pair of chromosomes is the s3x chromosomes? Why?

Answers

Autosomes are homologous chromosomes i.e. chromosomes which contain the same genes (regions of DNA) in the same order along their chromosomal arms. The chromosomes of the 23rd pair are called allosomes consisting of two X chromosomes in most females, and an X chromosome and a Y chromosome in most males.

20. The triple-point of water occurs at 273.16 K (0.01 °C) and a vapor pressure of 0.0060373 atm). At this point water can be ______________. solid B. Liquid C. Gas D. All of the above E. None of the above

Answers

Answer:

E i think.

Explanation:

The triple-point of water occurs at 273.16 K (0.01 °C) and a vapor pressure of 0.0060373 atm. At this point water can be solid, liquid and gas. So, option (D) is correct.

What is phase diagram?

phase diagram: a graph that displays the limiting conditions for a substance's solid, liquid, and gaseous phases under changes in pressure, temperature, or another combination of variables, such as solubility and temperature.

The curves in the figure were derived from measurements taken at various pressures and temperatures, and they represent a typical phase diagram for a one-component system (i.e., one made up of a single pure chemical).

What is triple-point?

The combination of temperature and pressure at which a substance can exist in all three of its states—gas, liquid, and solid—is known as the triple point.

The Kelvin(K), the International System of Units' (SI) fundamental unit of thermodynamic temperature, is defined using the triple point of water. The triple-point of water occurs at 273.16 K (0.01 °C) and a vapor pressure of 0.0060373 atm.

Learn more about triple point here:

https://brainly.com/question/2402164

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Calculate the running costs of a filament lamp with a 60 W bulb and a CFL lamp with a 15 W bulb for 15 hours.
1 kWh costs 10p.
cost = power (kW) × time (hours) × price (per kWh)

Answers

Answer:

the cost of running the bulbs is 11.25p

Explanation:

Given;

cost of running 1 kwh = 10 p

power of filament bulb, P = 60 W

power of the CFL bulb, P = 15 W

time of power consumption, t = 15 hours

Total Energy consumed;

E = (60W + 15W) x 15 hours

E = (75)(15)

E = 1125 Wh

E = 1.125 kWh

Cost of 1.125 kWh  =   1.125 x 10p

                               = 11.25p

Therefore, the cost of running the bulbs is 11.25p

Can someone please explain the conservation of momentum? I want to be a rocket scientist lol


will give brainliest

Answers

The law of momentum conservation can be stated as follows. For a collision occurring between object 1 and object 2 in an isolated system, the total momentum of the two objects before the collision is equal to the total momentum of the two objects after the collision.

Sloan is running with a momentum of 1850 kg m/s and has a mass of 58 kg. What is her velocity?

Answers

Answer:

v = 31.89 m/s

Explanation:

p = m × v

1,850 = 58 × v

58v = 1,850

v = 1,850/58

v = 31.89 m/s

A 62 kg male ice skater is facing a 42 kg female ice skater. They are at rest on the ice. They push off each other and move in opposite directions. The female skater moves backwards with a speed of 3.7 m/s. What is the velocity of the male skater?

Answers

The velocity of the male skater is 2.5 m/s in opposite to the direction of the female skater moving.

What is the law of conservation of momentum?

According to the law of conservation of momentum, The overall momentum of two or more bodies acting on one another in an isolated system stays constant unless an external force is introduced. As a result, momentum cannot be gained or lost.

Given parameters:

The mass of the male ice skater is: M = 62 kg.

The mass of the female ice skater is: m = 42 kg.

Initially both of them are in rest.

After they push off each other and move in opposite directions, the female skater moves backwards with a speed of v =3.7 m/s.

Let the speed of the male  ice skater is V m/s now.

From  the law of conservation of momentum:

MV + mv = 0

V = - mv/M

= - (42×3.7)/62 m/s

= - 2.5 m/s

Hence, the velocity of the male skater is 2.5 m/s in opposite to the direction of the female skater moving.

Learn more about momentum here:

https://brainly.com/question/29113044

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Two magnets are held apart. Once released, the South Pole of one magnet moves toward the North Pole of another magnet until the magnets collide. How does the graph reflect the changes in energy that occur?

Answers

Answer:

Kinetic energy and velocity are at zero when the magnets are held apart, and both increase rapidly when they are released and move together. Energy stored in the magnetic field decreases.

Explanation:

easy

The increase in the kinetic energy occurs when both magnets are released.

Change in energy occurs between two magnets

The kinetic energy and velocity are at zero when the magnets are held apart from one another at a certain distance  but the kinetic energy increases when they are released and move together so we can conclude that the increase in the kinetic energy occurs when both magnets are released.

Learn more about magnets here: https://brainly.com/question/14997726

What does AS>0 mean?|
I

Answers

Answer:

Significant Other

Explanation:

that comes to mind when I see that

13. Harry used the energy stored in his muscles to cycle up a hill. What happened to this energy when he reached the top?

A. The energy stored in Harry's musclesbwas destroyed.

B. The energy was returned to Harry's muscles

C. Kinetic energy changed to potential energy.

D. Potential energy changed to kinetic energy.​

Answers

Answer:

C. Kinetic energy changed to potential energy.

Explanation:

The kinetic energy is converted to potential energy when he reaches the top of the hill.

As with every system, energy is neither created nor destroyed but transformed from one form to another.

This is from the law of conservation of energy.

Kinetic energy is produced when Harry moves the up the hill. As he reaches the top of the hill and comes to rest, potential energy is formed.

Potential energy is the energy due to the position of a body.

Help me pleaseeeeee due. Today

Answers

Answer:

1. geothermal

2. nuclear

3. biofuel

1-geothermal

2-nuclear

3-biofuel

Frying an egg conduction convention radiation

Answers

Answer:

frying an egg is conduction because the pan is touching the stove and the pan is touching the eggs

Explanation:

What type of electromagnetic radiation is used by mobile phones?

Answers

Cell phones emit radiofrequency radiation ( radio waves ), a form of non-ionizing radiation, from their antennas

Brainiest if correct? I'd appreciate it SM :D

Answer:

radio frequency (RF)

The type of radiation emitted by cell phones is also referred to as radio frequency (RF) energy

Explanation:

hope this helps have a good rest of your night :) ❤

If there are two forces going in the same direction how would you find the net force?

a
add
b
multiply
c
subtract
d
divide

Answers

Answer:

A) Add

Explanation:

Answer:

a. add

Explanation:

Net [anything] is just a fancy way of saying total.

(Note that you would subtract if they were going in opposite directions. (Technically, you would be adding a negative, but that's the same as subtracting.))

30 points must be a legitimate answer and correct answer or I will report
A wave travels at a constant speed. How does the frequency change if the wavelength is reduced by a factor of 3?
A. The frequency increases by a factor of 9.
B. The frequency increases by a factor of 3.
C. The frequency decreases by a factor of 3.
D. The frequency does not change.

Answers

Answer:

it's C

Explanation:

have a nice day............

the correct answer is C !

What is the charge of an electron and charge of neutron

Answers

Answer:

The charge of a neutron is 0  

The charge of an electron is -1

Explanation:

Answer:

The charge of Neutrons is: 0

The charge of Electrons is: -1

Explanation:

Neutrons are uncharged and Electrons are negatively charged. The negative charge of one electron balances the positive charge of one proton. Both protons and neutrons have a mass of 1, while electrons have almost no mass.

what is the average acceleration of a car if a car rest from 0m/s and reaches a final velocity is 50m/s in 10m/s

Answers

Answer:

Assuming that you meant the final velocity of 50 m/s was reached in 10 s, the answer would be 5 m/s^2.

Explanation:

[tex]V_{f} = V_{i} + at[/tex]

So we update that with the values that we have.

[tex]50 = 0 +a(10)[/tex]

then simplify that using algebra to solve for a and we get 5 m/s^2

Help with this question please :>

Answers

Answer: A if thats not right its C

Explanation:

Answer: It's c

Explanation: C

what is refractive index ? ​

Answers

refractive index of a material is a dimensionless number that describes how fast light travels through the material

Explanation:

Refractive Index is a value calculated from the ratio of the speed of light in a vacuum to that in a second medium of greater density. The refractive index variable is most commonly symbolized by the letter ‘n’ or n’ in a descriptive text and mathematical equations.

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