2. Suppose two astronauts were outside of the space shuttle orbiter while orbiting Earth. The audio speaker in the helmet of one of the astronauts quits working. The other astronaut is only one meter away, so she shouts a message to him. Can he hear her? Explain.

Answers

Answer 1

Don’t click that link. But the answer would be no. That is because there is no matter in space, which means the sound can’t travel. Sound waves are literally vibrations between molecules, and in space there is no molecules, therefore no sound

Related Questions

A 25.0 mL sample of HCI reacted with 20.0 mL of 2.00 M NaOH. What is the molarity of the HCI?
HCl(aq) + NaOH(aq) —> NaCl(aq) + H2O(l)
really need help!

Answers

Answer:

Molarity of HCl = 1.6M

Explanation:

The chemical reaction equation is;

HCl(aq) + NaOH(aq) —> NaCl(aq) + H2O(l)

Now, molarity = number of moles/volume

Thus, for NaOH, we have;

Number of moles = molarity × volume = 2M × (20/1000) L

Number of moles = 0.04 moles

Using the coefficients in the chemical equation above, we can find the corresponding number of moles for HCl.

Number of moles of HCl = 0.04 moles NaOH × (1 mole of HCl/1 mole of HCl) = 0.04 moles of HCl

Thus;

Molarity of HCl = 0.04/(25/1000)

Molarity of HCl = 1.6M

Are the following equations balanced or unbalanced?

1. SnO2 + 2H2 → Sn + 2 H2O

2. 4NH3 + 5O2 → 4NO + 6H2O

3. 2B2Br6 + 5HNO3 2 B(NO3)3 + HBr

4. 2KNO3 + 1H2CO3 → 1K2CO3 + 2HNO3

Answers

1. balanced
2. balanced
3. unbalanced
4. balanced

What will happen to the Sun in approximately 5.5 billion years?

Answers

Answer:

This lifespan began roughly 4.6 billion years ago, and will continue for about another 4.5 – 5.5 billion years, when it will deplete its supply of hydrogen, helium, and collapse into a white dwarf.

Explanation:

Got this from the internet lol

Student Force
40 N
Student Force
80N
What is the net force in newtons (N)?
What is the direction of the motion? no motion
2

Answers

Answer:

net force is 80n ‐40n=40newton

the direction of motion is right

Which pieces of equipment are
needed to calculate the velocity of a
falling object?
A stopwatch and balance
B speedometer and magnet
C compass and tape measure
D tape measure and stopwatch

Answers

I believe it would be D. Tape measure and stopwatch.
To calculate velocity you’ll need to know the height it is falling from and how long it takes to fall.
Hope this helps!
Please let me know if I was right.

D is the correct answer

what is the formula for water

Answers

Answer:

H2O

Explanation:

EASIEST FORMULA ON EARTH

what are the Common compounds of niobium in which it is found

(include common names and their chemical formulas)

plssss help

Answers

Explanation:

Common Compounds of Niobium Nb

[Nb+3, Nb+5]

Compound NameFormulaMolar Mass

Niobium(III) OxideNb2O3233.811

Niobium(III) SulfateNb2(SO4)3474.0006

Niobium(V) PhosphateNb3(PO4)5753.576

Niobium(V) BromideNbBr5492.4264

Niobium(V) PentoxideNb2O5265.8098

Niobium OxychlorideNbOCl3215.2648

Niobium(V) IodideNbI5727.4287

Niobium(V) PentachlorideNbCl5270.1714

Niobium(V) ThiocyanateNb(SCN)5383.3184

Niobium(III) ChlorideNbCl3199.2654

Niobium(V) Dihydrogen PhosphateNb(H2PO4)5577.84259

Niobium NitrideNbN106.9131

Niobium(III) DichromateNb2(Cr2O7)3833.77676

Niobium HydroxideNb(OH)3143.9284

Niobium(V) PerchlorateNb(ClO4)5590.15938

Niobium(V) HypochloriteNb(ClO)5350.16838

Niobium(III) HypochloriteNb(ClO)3247.26358

Niobium(V) CarbonateNb2(CO3)5485.85726

Niobium(III) TartrateNb2(C4H4O6)3630.02564

Niobium(III) ChromateNb2(CrO4)3533.79386

Niobium(V) HexafluorosilicateNb2(SiF6)5896.192356

DUE IN AN HOUR PLS HELP WILL SEND MONEY THRU CASHAPP

Answers

Don’t send your money dude

If we have 0.072 g of FeCl3 then how many moles are there?

Answers

Answer:

~0.0004

Explanation:

[tex]n=\frac{m}{M}[/tex]

n=0.072/(56+(35.5*3))=0.072/162.5~~0.004

Question is in picture

Answers

Answer:

Explanation:

I believe it's 30 because half of 24 is 12 and that is its half life. And as you know it took 30 minutes to get there.

write a paragraph on: how Westfield how the rust in their water formed.

Answers

Answer:

Students have investigated what's going on in the fictional town of Westfield, they learned that the mysterious reddish-brown substance in the water is actually rust, which formed because of a chemical reaction between the iron pipes and the fertilizer substance in the water.

Explanation:

ANSWER ASAP Please! How do groups and periods differ? What trend specifically occurs in either?

Answers

A period is a horizontal row of the periodic table. A group is a vertical row of the periodic table. Periodic trends arise from the changes in the atomic structure of the chemical elements within their respective periods (horizontal rows) and groups in the periodic table.

I need help with my science project someone help me answer it!

Answers

Answer:

food

Explanation:

How many moles do I have of Lithium if I have 116.3g

Answers

Answer:

16.85mol

Explanation:

The number of moles of a substance can be calculated by dividing the mass of that substance by its molecular mass. That is;

number of moles (n) = mass (m) /molar mass (MM)

Molar mass of lithium = 6.9g/mol

Hence,

number of moles = 116.3 ÷ 6.9

Moles = 16.85mol

Therefore, 16.85moles is present in 116.3g of Li.

How do i calculate speed and find the direction of a moving object

Answers

To solve for speed or rate use the formula for speed, s = d/t which means speed equals distance divided by time.

The direction of a moving object is the direction the velocity vector points in. Where v1/2 is the magnitude of the velocity halfway to the top of the trajectory. So vdown=−vup - the two velocity vectors point in opposite directions not the same direction.

Can you help me please

Answers

Answer:

11.5 or 11.52, depending on however many decimal places you round it to

Explanation:

the equation for mass ( using the specific heat capacity equation) is energy transferred divided by temperature change x the specific heat capacity.

so, we do 725 ÷ 32° (the temp change) x 2.03 = 11.52 or 11.5, depending on how many decimal places you round to

i would round to 2 decimal places, so the answer would be 11.52kg.

mass is measured in kg :) hope this helped.

Definition:This is a type of lab equipment in which students use probes, interfaces, and software for real-
time data acquisition, display, and analysis with a computer or calculator

What is the term?

Answers

The term is User Interface

Use words from the box to complete the sentences.

fungi pathogen poison vaccine virus

(a) A bacteria that can cause a disease is an example of a..................................

(b) An obligate parasite that must inhabit a host cell to reproduce is a ...................................

Answers

Answer:

a) pathogen

b) virus

Explanation:

pathogens are harmful bacteria

viruses depend on the host to survive

The mass of 0.10 mole of methane

Answers

Answer:

A methane molecule is made from one carbon atom and four hydrogen atoms. Carbon has a mass of 12.011 u and hydrogen has a mass of 1.008 u. This means that the mass of one methane molecule is 12.011 u + (4 × 1.008u), or 16.043 u. This means that one mole of methane has a mass of 16.043 grams.

メタン分子は、1つの炭素原子と4つの水素原子から作られています。炭素の質量は12.011uで、水素の質量は1.008uです。これは、1つのメタン分子の質量が12.011 u +（4×1.008u）、つまり16.043uであることを意味します。これは、1モルのメタンの質量が16.043グラムであることを意味します。^>^

The mass of 0.10 mole of methane (CH4) is 1.6grams.

HOW TO CALCULATE MASS?

The mass of a substance can be calculated by multiplying the number of moles of the substance by its molar mass. That is;

mass = moles × molar mass

According to this question, there are 0.10 mole in methane (CH4). The molar mass of CH4 is 16g/mol.

Mass of CH4 = 0.10 × 16

Mass of methane = 1.6grams.

Therefore, the mass of 0.10 mole of methane (CH4) is 1.6grams.

Learn more about mass at: https://brainly.com/question/19694949

Write the complete balanced equation for Manganese & sulfuric acid --> Manganese (II) sulfate & water & sulfur dioxide

no spaces
no subscripts
no 1's for coefficients

WILL GIVE BRAINLIEST!

Answers

Answer:

I kinda forgot. I'm sorry if I didn't answer your question.

Explanation:

Why would you rather have hot cocoa than lemonade on a cold day? (The lesson is called heat transfer)

Answers

Answer:

you would more than likely have hot coca.

Explanation:

Because when its cold out you don't want something cold, its common sense lol.

pick one answer please do not put any links just type the answer

Answers

Answer is D
Explanation...

D. They have ways to store water for long periods of time.

how many atoms in 1kg of platinum
a 2.5x10^24

b 3.1x10^24

Answers

Answer:

3.1x10^24 it will be in 1 kg of platinum

The boiling temperature of water is directly related to the atmospheric pressure. At sea level, the atmospheric pressure is 760 torr whereas the boiling temperature is 100equationC. If the atmospheric pressure is lower than 760 torr, then the boiling temperature will be less than 100equationC. If the atmospheric pressure is higher than 760 torr, then you would expect the boiling temperature to be higher than 100equationC. At higher elevations, the atmospheric pressure is lower resulting in a lower boiling temperature. For example: Denver, CO experiences a boiling temperature at ~ 94equationC. If you were conducting an experiment that involved boiling water, what would you expect the boiling temperature to be if the atmospheric pressure was 790 torr

Answers

Answer:

If the atmospheric pressure is lower than 760 torr, then the boiling temperature will be less than 100equationC.

B. 97.7°C

Explanation:

The question mentions the fact that temperature and pressure are directly proportional. This means that if one quantity is increasing the other increases simultaneously and vice versa.

Hence, if the atmospheric pressure is lower than 760 torr, then the boiling temperature will be less than 100equationC.

From;

PαT

P=kT

Hence

P/T = k

P1/T1 = P2/T2

P1T2 = P2T1

P1 = 760 torr

T1 = 94°C

T2 = ?

P2 = 790 torr

T2 = P2T1/P1

T2 = 790 * 94/760

T2 = 97.7°C

A very small electronegativity difference leads to a:
a Polar covalent bond
b Non-polar covalent bond
c lonic bond
d None of the above

Answers

Non polar covalent bond

A 1.26 g sample of He gas has a pressure of 0.123 arm and a volume of 32.6 L. What is the temperature of the sample, in degrees Celsius

Answers

Hello, the answer would be -118*C

A 1.26 g sample of He gas has a pressure of 0.123 arm and a volume of 32.6 L, then the temperature of the gas is -117.7 degree C.

How do we calculate the temperature of gas?

Temperature of any gas will be calculated by using the ideal gas equation as:

PV = nRT, where

P = pressure of gas = 0.123 atm

V = volume of gas = 32.6 L

R = universal gas constant = 0.082 L.atm / K.mol

T = temperature of gas = ?

n is moles of He gas and will be calculated as:

n = W/M, where

W = given mass = 1.26g

M = molar mass = 4 g/mol

n = 1.26 / 4 = 0.315 moles

On putting values we get,

T = (0.123)(32.6) / (0.315)(0.082)

T = 155.41 K = 155.41 - 273.15 = -117.7 degree C

Hence required temperature of the helium sample is -117.7 degree C.

To know more about ideal gas equation, visit the below link:

https://brainly.com/question/25290815

can someone pleaze help me

Answers

Answer:

I think its the last one

Explanation:

Super sorry if its incorrect.

why does his apple tastes less sour after 15 days

Answers

Answer:

Maybe because that he ate the apple when it wasn't ready or fully grown yet just like bannans if bannanas are green that means that they are still growing so maybe that why it tasted sour or prob because he ate an green apple because thos apples are sour.

How many moles of CO2 are in 54.3 g of CO2 ?

Answers

Answer:

There is actually 1 mole in 54.3 g of CO2

How does temperature differ from heat?

Answers

Answer:

Heat is a specific spectrum of the temperature scale while temperature is a lot broader

Explanation:

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How do coral reefs benefit the environment in terms of biodiversity? movies are actually many photographs shown rapidly, in order to create the perception of movement. this perception is called the what is the biggest number to mankind? a property owner decided to give his property to the city with the condition that no alcohol consumption is allowed on the premises. the city developed the property as a golf course and made substantial investment in the development of the property. over the years, to make up for a drop in revenue, the city allowed the club house to sell beer and wine to their customers. which type of estate does the city have and what rights does the original owner have? Which of the following statements about sister chromatids is TRUE?1. Sister chromatids are produced during mitosis.2. Sister chromatids are held together by complementary base pairing of DNA at the centromere.3. 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2. Suppose two astronauts were outside of the space shuttle orbiter while orbiting Earth. The audio speaker in the helmet of one of the astronauts quits working. The other astronaut is only one meter away, so she shouts a message to him. Can he hear her? Explain.​

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2. Suppose two astronauts were outside of the space shuttle orbiter while orbiting Earth. The audio speaker in the helmet of one of the astronauts quits working. The other astronaut is only one meter away, so she shouts a message to him. Can he hear her? Explain.