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son4ous [18]
3 years ago
14

One kg of air is contained in a piston-cylinder system and it undergoes a Carnot cycle having an efficiency of 60%.The heat tran

sfer to the air during the isothermal expansion is 40 kJ.At the end of the isothermal expansion, the pressure is 5.6 bar and the volume is 0.3 m3Determine the work and heat transfer for each of the four processes
Physics
1 answer:
wlad13 [49]3 years ago
4 0

Answer is in the file below

tinyurl.com/wtjfavyw

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A proton moves north with a speed of 3 x 10^6 m/s. A 5 Tesla magnetic field is directed west. Determine the magnitude and direct
Andreyy89

The magnitude of magnitude force on the proton is 2.4 x 10⁻¹² N.

<h3>Magnitude of magnetic force on the proton</h3>

The magnitude of magnitude force on the proton is calculated as follows;

F = qvB sinθ

where;

  • q is the charge of the proton
  • v is the speed of the proton
  • B is the magnitude of the magnetic filed
  • θ is the angle between the field and speed

Substitute the given parameters and solve for the magnetic force.

F = (1.6 x 10⁻¹⁹) x (3 x 10⁶) x (5) X(sin90)

F = 2.4 x 10⁻¹² N

Thus, the magnitude of magnitude force on the proton is 2.4 x 10⁻¹² N.

Learn more about magnetic force here: brainly.com/question/13277365

7 0
3 years ago
CH4 + 2O2 → CO2 + 2H2O The number in front of a compound in a balanced chemical equation is known as a(n) A) charge. B) coeffici
Tamiku [17]
The numbers in front of a compound is called a subscript. It shows how many atoms of that specific element it is next two that is involved in the reaction or is in that compound. 

The answer is then D. 

Coefficient is found behind the compounds, the charges are written above. 
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3 years ago
A teacher explains that a scientist named Boyle did many experiments to determine what the relationship is between the volume an
lina2011 [118]
<span>Boyle's Law, because it describes what will happen in the relationship between the pressure and volume of the gas.</span>
4 0
4 years ago
The precision of a laboratory instrument is ± 0.05 g. The accepted value for your measurement is 7.92 g. Which measurements are
skelet666 [1.2K]

Answer:

7.89 7.91

Explanation:

The ranges of measurement lie between 7.92-0.05 and 7.92+0.05

7.87g and 7.97g

3 0
3 years ago
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Use this technique to find a formula for the intensity I of a sound, in terms of the sound level β and the reference intensity I
mezya [45]

The problem is basically asking us to find a way to find the sound intensity I, in terms dependent on the sound level and the reference intensity I_0.For this purpose we can start from the unit used in the scale logarithmic decibel, that is

\beta = 10log_{10}\frac{I}{I_0}

Where

I = Acoustic intensity on the linear scale

I_0 = Hearing threshold

Using the logarithmic properties of the exponents the above expression can be described as:

(\frac{I}{I_0})^{10} = 10^{\beta}

I = I_0 10^{\frac{\beta}{10}} \righarrow that is the expression or technique to find the intensity of sound.

8 0
3 years ago
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