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Liono4ka [1.6K]
3 years ago
7

Technician A says that the oil pan on a two-stroke engine holds more oil than a typical four-stroke engine. Technician B says th

at the cooling system of a two-stroke engine uses special liquid coolant. Who is correct?
Physics
1 answer:
Arturiano [62]3 years ago
5 0

Answer:

Technician A is right, because the lubrication system in a two-stroke engine requires mixing with the fuel, therefore oil is constantly burned, while a 4-stroke engine has a separate lubrication system.

Technician B is wrong, usually the 2-stroke engines are small and the cooling system is that the cylinder container is constructed with a geometry that allows to increase the area of ​​heat transfer called fins, this allows to release heat quickly .

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A student is told to use 20.0 g of sodium chloride to make an aqueous solution that has a concentration of 10.0 g/L (grams of so
Stells [14]

Answer:

she should add solute to the solvent

Explanation:

Given data :

Mass of the sodium chloride, = 20.0 g

Concentration of the solution = 10 g/L

Volume of 20.0 g of sodium chloride = 7.50 mL

Now, from the concentration, we can conclude that for 10 g of sodium chloride volume of the solution is 1 L

thus, for 20 g of sodium chloride  volume of the solution is 2 L or 2000 mL

also,

Volume of solution = Volume of solute(sodium chloride) + volume of solvent (water)

thus,

2000 mL = 7.5 mL + volume of solvent (water)

or

volume of water = (2000 - 7.5) mL

or

volume of water = 1992.5 mL

or

volume of water = 199.25 L ≈ 199 L

6 0
3 years ago
Read 2 more answers
Who needs to know physics when they are making a satellite
vladimir2022 [97]
First satellite was Sputnik and it was a race then to send satellites!! Everyone starts experimenting how to launch.

first try was on a dog , Laika !! It was send to space as it is long after sputnik is placed in orbit !!

Now you know everyone knows rocket science and the most active are ISRO (India) and NASA (USA) !!
4 0
4 years ago
this stationary wave is what we call the first harmonic of the first normal mode of the system. in units of l, the length of the
Dafna1 [17]

The wavelength of the first harmonic of the standing wave is 2L.

<h3>What is a standing wave?</h3>

A standing wave is one in which the obvious points remain fixed as the vibration continues. A standing wave occurs in a wind instrument such as a trumpet, saxophone etc.

We know from  the formula of the first harmonic that the wavelength of the first harmonic of the standing wave is 2L.

Learn more about standing wave:brainly.com/question/1121886?

#SPJ11

3 0
2 years ago
What is the frequency of light when the energy for a mole of photons is 1. 55 × 1013 j?.
ValentinkaMS [17]

The frequency of light is 3.88 x 10^22Hz.

What is electromagnetic radiation?

The electromagnetic spectrum is the area where the electromagnetic radiation that we see as light, or visible light, is found. Visible light usually has wavelengths between 400 and 700 nanometers (nm) or frequencies between 750 and 420 terahertz, which are between the longer wavelengths of infrared and ultraviolet (with shorter wavelengths).

E = 1.55 x10^13 J/ mol

E = hv

v = 1.55 x 10^13/1mol  x 1mol/6.023 x )/6.626 x

velocity = 3.88x10^22 s-1

since 1 Hz = 1/ s = 1

velocity =3.88x 10^22 Hz

To learn more about Light the link is given below:

brainly.com/question/1555553

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3 0
2 years ago
g If the momentum of an electron doubles, by what factor would its de Broglie wavelength be multiplied
Fynjy0 [20]

Explanation:

The de broglie wavelength is given by :

\lambda=\dfrac{h}{p}

Here,

h is Planck's constant

p is momentum

Momentum and De-Broglie wavelength has inverse relationship. If momentum of an electron double, its wavelength gets half.

5 0
3 years ago
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