A ship is sailing at a speed of 5 km/hr. What distance has it covered, 2 hours after it left the port?​

Answer:

Cell lol

Explanation:

answer B

Answer:

CuCI2 is the answer.......

Answer:

If they mean the type of animal in the first question, they are both foxes.

They have different fur colors and are in different location/habitats

Yes, they are the same animal because they have almost the same features; Their fur color is different so they can blend better into the environment around it.

Explanation:

I hope this helps

Answer:

Suppose a piece of iron with a mass of 21.5 g at a temp of 100.0 °C is dropped into an insulated container of water. The mass of the water is 132.0 g and its temperature before adding the iron is 20.0 °C. What will be the final temp of the system? Specific heat of iron is 0.449 kJ/kg K.

Solution:

1) Since

qlost, metal = qgained, water

we write

(mass) (Δt) (Cp, metal) = (mass) (Δt) (Cp, water)

2) Substituting:

(21.5) (100 − x) (0.449) = (132.0) (x − 20) (4.184)

Some explanation:

a) 100 − x is the Δt for the metal; it starts at 100.0 °C and drops to some unknown, final value.

b) x − 20 is the Δt for the water; it starts at 20.0 °C and rises to some unknown, final value.

c) Since both metal and water wind up at the same ending value, we need to use only one unknown for the two Δt expressions.

3) A wee bit of algebra:

(2150 − 21.5x) (0.449) = (132x − 2640) (4.184)

965.35 − 9.6535x = 552.288x − 11045.76

561.9415x = 12011.11

To 3 sig figs, the answer is 21.4 °C.

Explanation:

hope its correct!

Answer:

73.97 kPa

Explanation:

It's helpful to know the conversion factors and apply them.

First, convert from torr to atm:

555 torr ÷ 760 atm = 0.730 atm

Next, convert from atm to Pa:

0.730 atm × 101,325 Pa = 73967 Pa

Finally, convert to kPa (1000 Pa in 1 kPa):

73967 Pa ÷ 1000 kPa = 73.97 kPa

Answer:

the answer is a because thermal energy is heat and the question said that is not a factor of thermal energy so A does not refer to heat

Answer:

Explanation:

The new volume can be found by using the formula for Boyle's law which is

[tex]P_1V_1 = P_2V_2[/tex]

Since we're finding the new volume

[tex]V_2 = \frac{P_1V_1}{P_2} \\[/tex]

We have

[tex]V_2 = \frac{4.25 \times 5.85}{2.75} = \frac{24.8625}{2.75} \\ = 9.0409...[/tex]

We have the final answer as

Hope this helps you

Answer:

Explanation:

Answer:

0.00127840909

Explanation:

yehehdhdalakdjhd

Answer:

electrons

galvanic

half-

electrode

Explanation:

I got it right :)

The words that complete each of the blanks in the question are;

A voltaic cell is one that produces energy by a sponteanous chemical reaction. A voltaic cell is a type of electrochemical cell.

The following are the words that complete the individual blanks';

Learn more about voltaic cell: https://brainly.com/question/14356798

Answer:

Explanation

Let, Wavelength = W,

Given, frequency (f) = 50 Hz, wave velocity (V) = 342 m/s

We know, V = f × W

=> 342 = 50 × W

=> W = 342/50 metre

=> W = 6.84 metre

Answer:

280 liters at STP are in 8.0*10² grams of sulfur dioxide.

Explanation:

The STP conditions refer to the standard temperature and pressure. Pressure values at 1 atmosphere and temperature at 0 ° C are used and are reference values for gases. And in these conditions 1 mole of any gas occupies an approximate volume of 22.4 liters.

In this case, the molar mass of sulfur dioxide, that is, the mass of one mole of the substance, is 64 g/mole.

You can apply the following rule of three: if by definition of molar mass 64 grams of sulfur dioxide are contained in 1 mole, 8.0*10² grams are contained in how many moles?

[tex]amount of moles=\frac{8*10^{2}grams*1 mole }{64 grams}[/tex]

amount of moles= 12.5 moles

Now you can apply a new rule of three: if by STP conditions 1 mole of any gas occupies a volume of 22.4 liters, 12.5 moles will occupy how much volume?

[tex]volume=\frac{12.5 moles*22.4 L}{1 mole}[/tex]

volume= 280 L

280 liters at STP are in 8.0*10² grams of sulfur dioxide.

Answer:

False

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Answer:

Measuring distances to stars through stellar parallax. Measuring distances to stars through the moving cluster method. Astronomers measure the temperature of a star by looking at the star's color and its spectrum. The apparent brightness of a star tells how bright it seems to us

Explanation:

Answer:

Analyze the Characteristics of a Star

Explanation:

Surface Temperature

First, you want to determine the color of the star - this can determine the heat and age of the star.

Second, you want to measure the spectrum and get the spectral type.

Chemical Composition

Determine which lines are present in the spectrum.

Luminosity

Measure the apparent brightness and compensate for distance

Radical Velocity

Measure the Doppler shift in the spectrum.

Rotation

Measure the width of spectral lines.

Mass

Measure the period and radial velocity curves of spectroscopic binary stars.

Diameter

1. Measure the way a star’s light is blocked by the Moon.

2. Measure the light curves and Doppler shifts for eclipsing binary stars.

The answer is It is NH3.....

Answer:

C.

Explanation:

Heat transfer by thermal radiation is transfer of heat by electromagnetic wav

The meaning for heat to be transferred by radiation is energy is transferred when molecules absorb electromagnetic waves.

Electromagnetic waves are the waves of electromagnetic field. Examples are radio waves, x-rays, and gamma rays.

These waves carry through space with carrying electromagnetic radiations.

Thus, the correct option is C. Energy is transferred when molecules absorb electromagnetic waves.

Learn more about electromagnetic waves

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Answer:

The correct answers are

Particles are dissolved

and light beam passes through invisibility

Explanation:

Odyssey

Answer: If a reaction releases 675,000 Joules then it means it releases 161.328872 kcal.

Explanation:

According to the standard conversion,

[tex]1 Joule = 0.000239006 kcal[/tex]

Therefore, 675,000 Joules will be converted into kcal as follows.

[tex]1 Joule = 0.000239006 kcal\\675,000 J = 675000 J \times \frac{0.000239006 kcal}{1 J}\\= 161.328872 kcal[/tex]

Thus, we can conclude that if a reaction releases 675,000 Joules then it means it releases 161.328872 kcal.

Explanation:

¿Cuál es la carga compuesta para el fosfuro de Aluminum phosphide is a chemical compound with the formula AlP; Phosphine gas generator which is extremely toxic to any living being. estroncio?

Answer:

Explanation:

Both points on a wave oscillate in directions that are perpendicular to the wave's advanced path, resulting in a transverse wave motion. Sea surface ripples, seismic S (secondary) waves, and electromagnetic (e.g., radio and light) waves are examples of transverse waves.

Their frequency and amplitude are related to the amount of energy they bear. The more energy, the higher the frequency, and the more energy, the higher the amplitude. With the activity Investigating waves and electricity, you will create these patterns on your own.

Particles in the medium vibrate to and from in a direction perpendicular to the direction of energy transport in transverse waves.

(hope this helps can i plz have brainlist :D hehe)

Answer is in a pho[tex]^{}[/tex]to. I can only uplo[tex]^{}[/tex]ad it to a file host[tex]^{}[/tex]ing service. link below!

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By combining the stoichiometry through the subscript provided for each element, the atoms may be counted.

Atom, the smallest unit of matter that may be separated without releasing electrically charged particles. It is also the lowest unit of matter with the characteristics of a chemical substance. As a result, the atom is indeed the fundamental building component of chemistry.

The majority of the atom comprises empty space. The rest of the structure is made up of a positive-charged nucleus of neutrons and proton surrounding by such a cloud of negative-charged electrons.

H[tex]_2[/tex]O     2 Hydrogen atom              1 oxygen atom

O[tex]_2[/tex]        2 oxygen atom

NaCl     1 sodium atom       1 chlorine atom

Therefore, by combining the stoichiometry through the subscript provided for each element, the atoms may be counted.

To learn more about atom, here:

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Answer:

There are 0.311 moles of  gas in the tank

Explanation:

Complete question

A 4.00g sample of gas is found to exert a pressure of 1.71 atm when confined in 3.60L container at a temperature of 241 K. Find the number of moles of the gas

Solution

As we know

[tex]PV = nRT[/tex]

where P is the pressure of the gas in atm

V is the volume in liters

n is the number of moles

R is the gas constant = 0.08206 L·atm/K·mol

and T is the temperature in Kelvin

Substituting the given values in above equation, we get -

[tex]1.71 * 3.60 = n * 0.08206 * 241\\n = 0.311[/tex]

There are 0.311 moles of  gas in the tank

Answer:

Option D

Explanation:

Displacement is a vector quantity.