How do waves travel through space?

Answers

Answer 1
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.
Answer 2

Explanation:

Electromagnetic waves are waves which can travel through the vacuum of outer space. Electromagnetic waves are created by the vibration of an electric charge. This vibration creates a wave which has both an electric and a magnetic component.


Related Questions

2×21=how many are there​

Answers

Multiply 2 * 21

2 * 21
= 42

What is the electron configuration for Ti (titanium)?

Answers

Explanation:

Titanium is an element found in the d-block group on the periodic table. It is a transition element.

To write the electronic configuration of an element, we must know the number of electrons in them;

 In a titanium atom, we have 22 electrons;

Shell notation  = 2  8  10 2  

Orbital notation  = 1s² 2s² 2p⁶ 3s² 3p⁶ 3d² 4s²

Answer: [Ar]4s^2 3d^2

Explanation:

12. Study the chemical reaction below, what are the product(s) in the reaction and what are the reactant(s) in the reaction (Short answer)

Aluminum + copper chloride ---> copper + aluminum chloride

Answers

Explanation:

The reactants are Aluminium and Copper chloride.

The products are Copper and Aluminium chloride.

The recessive allele tends to (blank) when it's in the presence of the dominant allele.

Answers

Answer:

The recessive allele tends to be masked when it's in the presence of the dominant allele.

Explanation:

Many of our traits are affected by our genes. From each of our parents, we receive one copy of every gene. These copies are called alleles.

There are different types of relationships that can occur between alleles. One of them is called dominance. This occurs when one allele masks the other, not allowing its effect to be expressed. The allele that masks the other is called the dominant allele (A), and the masked one is called the recessive allele (a). This means that an individual needs to have only one dominant allele in order for its effect to be expressed (AA or Aa). The effect of the recessive allele will be expressed only when an individual has both recessive alleles (aa).

Write three points that how chemical fertilizer impact the environment ​

Answers

Answer:

Chemical fertilizer impact the environment by the following ways:

Their overuse hardened the soilIt causes soil pollution.It decreases fertility of the soil and strengthen pesticides.

x-rays had a frequency of about 3x10^18 determine it's wavelength (in nm) and energy per photon

Answers

Answer:

E = 19.89×10⁻¹⁶ J

λ = 1×10⁻¹ nm

Explanation:

Given data:

Frequency of xray = 3×10¹⁸ Hz

Wavelength of xray = ?

Energy of xray = ?

Solution:

speed of wave = wavelength × frequency

speed = 3×10⁸ m/s

3×10⁸ m/s  = λ ×3×10¹⁸ s⁻¹

λ = 3×10⁸ m/s  / 3×10¹⁸ s⁻¹

λ = 1×10⁻¹⁰m

m to nm:

λ = 1×10⁻¹⁰m×10⁹

λ = 1×10⁻¹ nm

Energy of x-ray:

E = h.f

h = plancks constant = 6.63×10⁻³⁴ Js

by putting values,

E = 6.63×10⁻³⁴ Js ×3×10¹⁸ s⁻ ¹

E = 19.89×10⁻¹⁶ J

explain faraday's law

Answers

Explanation:

Faraday's Law of Induction describes how an electric current produces a magnetic field and, conversely, how a changing magnetic field generates an electric current in a conductor. ... Magnetic induction makes possible the electric motors, generators and transformers that form the foundation of modern technology.

5. Where are red blood cells produced?
10 points
O a. in the heart
b. in the blood vessels
c. in bone marrow
O d. in the plasma

Answers

Answer:

C

Explanation:

it's produced in the bone marrow

Using VSEPR theory which of the following would be the correct shape for nitrogen trifluoride?

Answers

Answer:

trigonal pyramidal

Explanation:

In NF3, the nitrogen atom is sp3 hybridized. Now we must remember that according to the VSEPR theory, the number of electron pairs in the valence shell of the central atom in a molecule determines its shape.

Here, the nitrogen atom is the central atom and its outermost shell is surrounded by four electron pairs - one lone pair and three bond pairs. This means that it has a tetrahedral electron pair geometry.

However, due to the lone pair, the three fluorine atoms are arranged in a  trigonal pyramidal geometry. Hence the correct shape of the molecule is trigonal pyramidal.

A saturated aqueous solution of sucrose contains 200 grams of sucrose and 100 grams of water. Which is the solvent: sucrose or water?

Answers

Answer:

The solvent is water

Explanation:

The solvent is the substance in the mixture that is able to dissolve the other substances. The solvent is usually the liquid.

In the problem is said: "A saturated aqueous solution", that means the solution is made by a solute that is in excess (Sucrose) dissolved in the solvent (Water).

The solvent is water

MULTIPLE CHOICE QUESTION
Gain or Lose
Magnesium (Mg) has 2 valence electrons. Will
the Mg atom gain or lose electrons to form an
ion?
• Elements > 4 valance e-
gain e-
• Elements < 4 valance e-
lose e-
Neither
Lose
Gain

Answers

Mg will lose 2 valance electrons to obtain octet

All of the following are alkaline earth metals except.
A) Barium
B) Calcium
C) Sodium
D) Magnesium​

Answers

The answer is
C) sodium

A 30 kg wrecking ball was dropped from different heights.



30 kg Wrecking ball

Height dropped

Speed at impact

Energy at impact

Distance Object is moved

Trial 1

5m

9.9 m/s

1470 J

0 cm

Trial 2

7m

11.71 m/s

2058 J

3 cm

Trial 3

15m

17.15 m/s

4410 J

55 cm

Trial 4

25m

22.14 m/s

7350 J

120 cm



What is the relationship between drop height and energy at impact?

Answers

Ahhh I don’t know I’m sorry

10 points
10. What is the correct order of your blood vessels from largest to
smallest?
a. veins arteries, capillaries
b. capillaries, veins, areteries
c. arteries, veins, capillaries
d. none of the above

Answers

c. arteries, veins, capillaries

0.500 L of a gas is collected at 2911 MM and 0°C. What will the volume be at STP?

Answers

Answer:

V₂ =  1.92 L

Explanation:

Given data:

Initial volume = 0.500 L

Initial pressure =2911 mmHg (2911/760 = 3.83 atm)

Initial temperature = 0 °C (0 +273 = 273 K)

Final temperature = 273 K

Final volume = ?

Final pressure = 1 atm

Solution:

Formula:  

P₁V₁/T₁ = P₂V₂/T₂  

P₁ = Initial pressure

V₁ = Initial volume

T₁ = Initial temperature

P₂ = Final pressure

V₂ = Final volume

T₂ = Final temperature

by putting values,

V₂ = P₁V₁ T₂/ T₁ P₂  

V₂ = 3.83 atm × 0.500 L × 273 K / 273 K × 1 atm

V₂ = 522.795 atm .L. K / 273 K.atm

V₂ =  1.92 L

What kind of bonding would exist between
sulfur and hydrogen?

Answers

Answer:

nonpolar covalent

Explanation:

Comparing their electronegativities will help determine the type of bond. Electronegativity is a measure of the tendency of an atom to attract a bonding pair of electrons. The difference in electronegativity (ΔEN)  is used to determine bond type. Hydrogen has an electronegativity of 2.20 and sulfur has 2.58. The difference is 0.38,so the electrons are shared in a nonpolar covalent bond.

Explain Nuclear Fusion vs Gravity a.Gravity pushes outward and Nuclear fusion pushes inward. b.Both gravity and nuclear fusion push inward. c.Both gravity and nuclear fusion push outward. d.Nuclear fusion pushes outward, and gravity pushes inward.

Answers

Answer:

d.

Explanation:

The term known as "Nuclear Fusion" is a very important concept in chemistry and it is studied mostly under the topic or aspect of Chemistry known as or called radioactivity. Nuclear Fusion is the kind of reaction in which two or more atomic nucleus combines to for bigger ones.

There is a saying that there is no life without nuclear fusion because it is the reaction that causes the stars to have light.

Option 'd' is correct. This is what happens in stars in order for light to be produced that is the inward movement of gravity and the outward movement of nuclear fusion.

Why do atoms become larger as you move down a group?
O The numbers of energy levels increase.
O Electron shielding increases.
O The decrease in ionization energy.
O The mass of the atom increases.

Answers

Explanation:

option C is the correct answer of this question

What type of change occurs as salt dissolves in water?
a)phase change
b)element change
c)physical change
d)chemical change

Answers

Answer :-

C) Physical change

The function of a specific enzyme is mostly determined by its

Answers

Answer:

What does the shape of an enzyme determine? The shape of the enzyme determines which chemical reaction it will speed up. -The region on an enzyme that the substrate fits into. ... The active site of an enzyme only fits one type of substrate molecule.

Explanation:

what does the slope of a distance vs time graph tell you? yes

Answers

Answer:

an increase of acceleration or decrease of acceleration

Explanation:

5. Which part makes up most of our blood vessels?
O a capillaries
Ob veins
O carteries
d. blood

Answers

Answer: a  capillaries

Explanation:

A. The Capillaries............

We have a photon with the wavelength of 605 nm. What is the frequency of this
photon?

Answers

Answer:

Explanation:

Speed of light = Wavelength x Frequency.

605 nm x Frequency = 3x10^8 m/s

6.05 x 10^-7 m x Frequency = 3x10^8 m/s

Frequency = 4.96 x 10^14 Hz

Answer:

ν=4.96x10^14 Hz

Explanation:

c=λν

λ=wavelength

ν=frequency

in this problem:

c=3x10^8

λ=605x10^-9

so ν=c/λ

v=(3x10^8)/(605x10^-9)

v=4.96x10^14

please give thanks :)

What is happening to the total amount of water on earth?
Olt is increasing.
Olt is decreasing.
Otisn't changing.

Answers

Answer:

It isnt changing

Explanation:

It stays basically the same becuase it is considered a constant

For an object to remain at rest, which of the following must be true?
The forces on it are balanced
There is no friction
Gravity does not act on it
The object has no mass

Answers

Answer: I believe that it is that the forces are balanced.

Explanation:

Please help me answer this first question.

Answers

Answer:

I think it would be 9 moles.

Fission U235 can produce what?
A Krypton

B Strontium
C Barium
D Xeonon
E All of the above

Answers

Answer:

A. krypton

Explanation:

give me brainly

How does the concept of action- reaction apply to the human body?

Answers

Answer:

The physical body of human work accosting to Action-Reaction law.

Explanation:

The rule of action-reaction state that an equivalent and reverse reaction occurs with any action.  If one entity imposes force on a second entity, the second responds by exerting an equivalent force on first entity in the same direction. 

Can I have an answer for this?

Answers

Hey There!_____________________________________Answer:[tex]\huge\boxed{\text{11.25 grams/mols}}[/tex]_____________________________________Reaction:[tex]2Al_{(s)}+ 3FeO_{(s)} \overset{\Delta} {\Longrightarrow} 3Fe_{(s)}+Al_2O_3_{(s)}[/tex]_____________________________________DATA:

Mass of Aluminium: 27 [tex]\frac{gm}{mol}[/tex]

Mass of Ferous Oxide: 71.84 [tex]\frac{gm}{mol}[/tex]

Aluminium: 7.5 Moles Given

How many moles of Iron (II) oxide(FeO)?

_____________________________________SOLUTION:

As there are 2 moles of aluminium involved and 3 moles of ferrous oxide So,

2 moles Al and 3 moles FeO

7.5 moles Al and x moles FeO

For X moles:

X = [tex]\frac{3\ x\ 7.5 }{2}[/tex]

X= [tex]\frac{22.5}{2}[/tex]

X= 11.25 [tex]\frac{gm}{mol}[/tex]

_____________________________________Best Regards,'Borz'

How many moles are in 7.18x10^24 ions of mg

Answers

Answer:

11.93 moles

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

[tex]n = \frac{N}{L} \\[/tex]

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

[tex]n = \frac{7.18 \times {10}^{24} }{6.02 \times {10}^{23} } \\ = 11.92691...[/tex]

We have the final answer as

11.93 moles

Hope this helps you

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