can you plz help me plz

Can You Plz Help Me Plz

Answers

Answer 1
Radiant energy or Frequency
Answer 2
it is A good luck and have a good day
Can You Plz Help Me Plz

Related Questions

please help- science

1. - new

2. full

3. first quarter

4. last quarter

Answers

Answer:

2. Full

Explanation:

A lunar eclipse occurs at a full moon when Earth is directly between the moon and the sun. During a lunar eclipse, Earth blocks sunlight from reaching the moon.

Hope this helps!!

Which climate condition will cause the fastest chemical weathering of granite sandstone and shale

Answers

Answer:

1. Tropical Climate

Explanation:

Due to the high heat in tropical climates, the moisture speeds up chemical weathering

That is a tropical climate

Which of these statements is true?


1. Electrons reach higher energy levels when they move closer to the nucleus.


2. An electron can absorb energy only from light.


3. The spectrum of hydrogen consists of all frequencies of radiation.


4. The emission spectrum of each element is unique

Answers

I think is number 4

Which statements describe the types of energy emitted by the Sun? Check all that apply.
A. It emits most of its energy in gamma rays.
B. It emits all wavelengths in the electromagnetic spectrum.
C. It emits most of its energy as visible light.
D. Its peak wavelength is in the orange-yellow range.
E. It emits no X-rays or radio waves.
F. Its peak wavelength is in the yellow-green range.

Answers

Answer:

a,c,b

Explanation:

The answer for the equation is A

help me with questions 6,11,15,16 and 17 please

ayúdame con las preguntas 6,11,15,16 y 17 por favor

Answers

6- kinetic
11-positive and negative
15- photons for the sunlight
16-complete
17-false

PLEASE HELP REAL ANSWER NO FILE. Part A
Electricity generated from any source comes with its own advantages and
disadvantages. So, no source of energy for generating electricity is perfect. However,
imagine that there is an energy source that perfectly meets the needs of society.
Describe this ideal source of energy. Include relevant factors such as cost, supply, safety,
reliability, and environmental impact

Answers

Answer:

Wind energy

Explanation:

An ideal source of energy needs to be reliable, cost effective, safe and must lead to almost zero adverse environmental impact.

Wind energy is energy obtained from air moving at high velocity. This energy is harvested using windmills which convert mechanical energy to electrical energy.

Wind is inexpensive because it occurs naturally. However, a large expanse of land is required in order to mount sufficient number of windmills that will generate enough electrical energy for practical purposes.

This method of electricity generation is safe and does not lead to any environmental hazard unlike the burning of fossil fuels, use of nuclear energy or loss of habitat due to hydroelectric power generation.

Which is true regarding pressure?

A.) at high pressure, the molecules are moving slower and therefore hitting other particles and the sides of a container less frequently

B.) pressure is calculated by combining the amount of space an entire object takes up.

C.) pressure is calculated by averaging the kinetic energy of all particles in a container

D.) at higher pressure indicates that particles are colliding with the walls of a container more frequently

Answers

Answer:

D

Explanation:

The higher a pressure in a system the faster the molecules within it move and collide with one another due to lack of space

What is the mass of 4 × 1015 atoms of nickel
(Ni)?
Answer in units of g.

Answers

It would probably be 4060

PLEASE HURRY I WILK TIVE BRAINYEST
What is the weather like in a temperate grassland? (Select all that apply.)
A) summers are mild to hot
B) winters are cold
C) summers are cool
D) winters are mild

Answers

Answer:

A. Summers are mild to hot, B. Winters are cold.

It would probably be A


Jim makes a mixture which contains 10 mg of salt, 30 mg of sand, and some iron filings. The total mass of the mixture is 100 mg
Which amount of iron filings does Jim use in the mixture?
A10
B30
C40
D60

Answers

Answer:

Amount of iron fillings in mixture = 60 mg

Explanation:

Given:

Total mass of mixture = 100 mg

Amount of salt in mixture = 10 mg

Amount of sand in mixture = 30 mg

Find:

Amount of iron fillings in mixture

Computation:

Using Law of Conservation of mass;

Total mass of mixture = Amount of salt in mixture + Amount of sand in mixture + Amount of iron fillings in mixture

100 = 10 + 30 + Amount of iron fillings in mixture

100 = 40 + Amount of iron fillings in mixture

Amount of iron fillings in mixture = 100 - 40

Amount of iron fillings in mixture = 60 mg

PLEASE HELP!! NO LINKS PLEASE REAL ANSWER!!!!!
What will be volume of 20.0 g of CH4 gas at a pressure of 0.950 atm and temperature of 21.0 oc?Question 1 options:

A. 21.8 L
B. 31.8 L
C. 2.27 L
D. 4.27 L

Answers

The answer is (C) or (D)

Alkenes provide many ways for incorporating oxygen atoms at specific locations in our molecule.

a. True
b. False

Answers

Answer:

True

Explanation:

Answer:

True

hope it is helpful to you

Disadvantages of using cisplatin as an anti-cancer drug​

Answers

Answer: The following side effects are common (occurring in greater than 30%) for patients taking Cisplatin:

Nausea and vomiting. Nausea may last up to 1 week after therapy.

Low blood counts.

Kidney toxicity.  

Ototoxicity hearing loss, ringing in the ears.

Blood test abnormalities (low magnesium, low calcium, low potassium)

Explanation:

My mind is ok :')

help i will mark brainliest

Answers

Answer:

Image A

Explanation:

The hemisphere experiences summer when it is tilted towards the sun. Image a has the northern hemisphere tilted towards the sun.

Answer:

image A

Explanation:

this is because the sun is hitting earth at a steep angle

What locations are likely to be affected by an earthquake or tsunami?

San Francisco, California, USA

San Francisco, Tokyo, and Asunción

Tokyo, Japan

None of the locations

Asunción, Paraguay, South America

Answers

none of the locations

Answer:

All the locations can suffer earthquakes and a handful like tokyo tsunami so the question is either or so the anwer would be all

Explanation:

Which of the compounds shown are structural
isomers of this compound? Check all that apply.
A
B
С
D

Answers

Answer:

A & C

Explanation:

The next one is A Edge 2022

The compound which are the structural isomers of the given compound is compound A & C.

What are structural isomers?

Structural isomers are those isomers in which which are having the same molecular formula but different structural structures.

Compound A: A is the structural isomer of the given compound as they both have same number of carbon and hydrogen atoms present in that.Compound B: B is not the structural isomer of the given ompound as they have not equal number of carbon and hydrogen atoms in it.Compound C: C is the structural isomer of the given compound as they both have same number of carbon and hydrogen atoms present in that.Compound D: D is not the structural isomer of the given ompound as they have not equal number of carbon and hydrogen atoms in it.

Hence A & C are the structural isomers of given compound.

To know more about structural isomers, visit the below link:
https://brainly.com/question/26298707

Given the reaction: N2(g) +2O2(g) ⇌ 2NO2(g) The forward reaction is endothermic. Determine which of the following changes would result in more product being produced.


I. Increase NO2
II. Decrease O2
III. Add a catalyst
IV. Increase the temperature
V. Increase the pressure

A. I and II
B. II, III, and V
C. IV and V
D. II and IV

Answers

Answer:

C

Explanation:

increasing the temperature will favour the forward reaction therefore the reaction system will try to counteract that by producing more heat and NO2 therefore increases the amount of products produced

increasing the pressure will favour the forward reaction as it has more moles of substance therefore if the forward reaction is favored, more product will be produced

Answer:

C.) lV and V

Explanation:

I got it correct on founders edtell

hydrogen chloride, hydrogen nitrate (v), sodium chloride, sodium hydroxide. Name a substance known as common salt​

Answers

Answer:

C: Sodium chloride

Explanation:

Common salt is gotten when sodium atoms reacts with chlorine atoms in an exothermic reaction to form an ionic substance known as sodium chloride with the chemical formula NaCl.

Equation is;

2Na + Cl2 = 2NaCl

Looking at the options, the correct one is Sodium chloride.

Compute the number of electrons that each lead atom donates, on average, to a bulk piece of lead metal. Room temperature data for lead: The conductivity of lead is 4.90 × 104 1/(Ω·m) The electron mobility of lead is 2.3 cm2/(V·s) The mass density of lead is 11.4 g/cm3 The atomic weight of lead is 207 g/mol

Answers

Answer:

4 electrons/atom

Explanation:

The conductivity of the lead σ = neμ where n = electron density, e = electron charge = 1.602 × 10⁻¹⁹ C and μ =  electron mobility of lead = 2.3 cm²/(V·s) = 2.3 × 10⁻⁴ m²/(V.s)

Making n subject of the formula, we have

n = σ/eμ

Since σ = 4.90 × 10⁶ (Ω·m)⁻¹

Substituting the values of the variables into the equation, we have

n = σ/eμ

n = 4.90 × 10⁶ (Ω·m)⁻¹/(1.602 × 10⁻¹⁹ C × 2.3 × 10⁻⁴ m²/(V.s))

n = 4.90 × 10⁶ (Ω·m)⁻¹/(3.6846 × 10⁻²³ Cm²/(V.s))

n = 1.33 × 10²⁹ electrons/m³

We now find the number of moles of lead present in 1 m³ of lead.

So n' = ρ/M where ρ = density of lead = 11.4 g/cm³ = 11.4 g/cm³ × 10⁶ cm³/m³ = 11.4 × 10⁶ g/m³ and M = atomic weight of lead = 207 g/mol

So, n' = ρ/M

N = 11.4 × 10⁶ g/m³/207 g/mol

n' = 0.0551 × 10⁶ mol/m³

n' = 5.51 × 10⁴ mol/m³

Since n' = N/N' where N = number of atoms of lead in 1 m³ of lead and N = Avogadro's constant = 6.022 × 10²³ mol⁻¹

N = n'N' = 5.51 × 10⁴ mol/m³ × 6.022 × 10²³ mol⁻¹

N = 33.18 × 10²⁷ atoms/m³

N = 3.318 × 10²⁸ atoms/m³

So, the number of electron per atom is N" = n/N

= 1.33 × 10²⁹ electrons/m³ ÷ 3.318 × 10²⁸ atoms/m³

= 0.4 × 10¹ electrons/atom

= 4 electrons/atom

What happens to iron when it melts?
O A. It undergoes a chemical change.
O B. It undergoes a physical change.
O c. Its atoms break apart and form new atoms.
O D. Its atoms combine and form new atoms.

Answers

Answer:

B. It undergoes a physical change.

Explanation:

Hello there!

In this case, since we know that chemical changes lead to the formation of new atoms and/or compounds due to the bonds rearrangement of the initial substances and the physical changes occur without changing the composition of the initial substances, we can infer that, since melting is a process that changes the phase of matter from solid to liquid without changing the identity of the initial substance, the answer to this question would be B. It undergoes a physical change. because the other options describe chemical changes.

Best regards!

Answer:

B. It undergoes a physical change.

Explanation:

At room temperature, the iron atoms are in an unusual loosely packed open arrangement; as iron is heated past 912 degrees Celsius, the atoms become more closely packed before loosening again at 1,394 degrees Celsius and ultimately melting at 1,538 degrees Celsius.

Suppose you needed to explain the concept of the mole to a junior high school student. What would you tell them?

Answers

Answer:

Explanation:

duehgjvcujhyeq bvckjfdsaeb gjdksghUIBGREQWMNHGTRE BAGTFEQA

why do we have to write the background of the study​

Answers

Answer:

Writing down background information can help you to remember what you learned and can be used for notes in the future when taking an assessment.

Explanation:

Can I get brainliest? It's for a challenge

Help solve the types of chemical reactions

Answers

[tex]1) \: decomposition[/tex]

[tex]2) \:hydrocarbon \: combustion[/tex]

[tex]3) \: formation[/tex]

[tex]4) \: double - replacement[/tex]

[tex]5 \: double - replacement[/tex]

[tex]6) \: formation[/tex]

[tex]7)double \: - replacement[/tex]

[tex]8) \: double - replacement[/tex]

where does baby came from​

Answers

Answer:

they came from for the dad sperm

Reveal the protein to trait example. How did the differences and proteins lead to different traits for this feature.

Please help me no links.

Answers

Explanation:

Proteins are responsible for shaping and growth of an organism. Explanation: The differences in proteins lead to different in traits because it is the protein that determines the trait. ... These proteins shaped the structure of organisms so we can say that difference in traits occur due to difference in their proteins.

Solid AgCl (Ksp = 1.8 X 10-10) is placed in a beaker of water. After a period of time, the Ag+ concentration is measured and found to be 2.5 X 10-7 M.
a) What is the concentration of Cl-?
b) Has the system reached equilibrium?
c) Will more AgCl dissolve?

Answers

Explanation:

a)

[tex]k _{sp} = [Ag {}^{ + } ][Cl {}^{ - } ] \\ but \: [Ag {}^{ + } ] = [Cl {}^{ - } ] \\ k _{sp} = [Ag {}^{ + } ] {}^{2} \\ [Ag {}^{ + } ] = \sqrt{k _{sp}} \\ = \sqrt{1.8 \times {10}^{ - 10} } \\ = 1.34 \times {10}^{ - 5} mol {dm}^{ - 3} [/tex]

b)

It has not reached equilibrium because the silver concentration is not yet equal to the value of Ksp.

c)

Yes it will dissolve in order to establish the equilibrium.

A cylindrical rod of copper (E = 110 GPa) having a yield strength of 240 MPa is to be subjected
to a load of 6660 N. If the length of the rod is 380 mm, what must be the diameter to allow an
elongation of 0.50 mm?

Answers

Answer:

required diameter is 7.65 mm

Explanation:

Given the data in the question;

F = 6660 N

l₀ = 380 mm = 0.38 m

E = 110 GPa = 110 × 10⁹ N/m²

Δl = 0.50 mm = 0.0005 m

So, lets assume the deformation is elastic;

d₀ = √(  [4l₀F] / [πEΔl] )

we substitute

d₀ = √(  [4 × 0.38 × 6660] / [π × (110 × 10⁹) × 0.0005]] )

d₀ = √( 10123.2 / 172787595.947 )

d₀ = √( 5.85875 × 10⁻⁵ )

d₀ = 0.007654 m

d₀ = ( 0.007654 × 1000 )mm

d₀ = 7.65 mm

Therefore, required diameter is 7.65 mm

What are the substances that interact to form new substances in a chemical reaction called?
A. Reactants
B. Products
C. Chemicals
D. Substances

Answers

Answer:

A. Reactants

Explanation:

A chemical reaction is the process in which atoms present in the starting substances rearrange to give new chemical combinations present in the substances formed by the reaction. These starting substances of a chemical reaction are called the reactants, and the new substances that result are called the products.

The electrolyte magnesium chloride (MgCl2) will break up into how many individual particles in water (what is the i value)?

Answers

Answer:

Solid magnesium chloride is a non-conductor of electricity because the ions aren't free to move. However, it undergoes electrolysis when the ions become free on melting. Magnesium chloride dissolves in water to give a faintly acidic solution (pH = or 6).

One method of increasing the chances of particles colliding during a reaction is to...
1)decrease temperature
2) decrease concentration
3)increasing concentration
4)use a catalyst

Answers

Answer:

3

Explanation:

Increasing concentration

It would probably be 3
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