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2 years ago

Explain why most foods and beverages are mixtures.

Physics

1 answer:

Oduvanchick [21]2 years ago

5 0

Answer:

Most food and drinks are mixtures as they are not chemically bonded and also beacuse they are made up of two or more substances

Explanation:

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The wave length of violet light rounded to the nearest nanometer is a __ nm

nataly862011 [7]

Wavelength= speed / frequency

so.....3× 10^8 / 7.26×10^14
= .413× 10^(-6)

in scientific notation= 4.13×10^(-7)

in nanometer = 413 nm

6 0

2 years ago

Two balls are placed near one another and hang down, as shown below.

Delicious77 [7]

Answer:

<h2>a- neither ball has a charge</h2>

Explanation:

3 0

2 years ago

Read 2 more answers

Three moles of an ideal gas with a molar heat capacity at constant volume of 4.9 cal/(mol∙K) and a molar heat capacity at consta

Sergeu [11.5K]

Answer:

The heat flows into the gas during this two-step process is 120 cal.

Explanation:

Given that,

Number of moles = 3

Heat capacity at constant volume = 4.9 cal/mol.K

Heat capacity at constant pressure = 6.9 cal/mol.K

Initial temperature = 300 K

Final temperature = 320 K

We need to calculate the heat flow in to gas at constant pressure

Using formula of heat

$\Delta H_{1}=nC_{p}\times\Delta T$

Put the value into the formula

$\Delta H_{1}=3\times6.9\times(320-300)$

$\Delta H_{1}=414\ cal$

We need to calculate the heat flow in to gas at constant volume

Using formula of heat

$\Delta H_{1}=nC_{v}\times\Delta T$

Put the value into the formula

$\Delta H_{1}=3\times4.9\times(300-320)$

$\Delta H_{1}=-294\ cal$

We need to calculate the heat flows into the gas during two steps

Using formula of total heat

$\Delta H_{T}=\Delta H_{1}+\Delta H_{2}$

$\Delta H_{T}=414-294$

$\Delta H_{T}=120\ cal$

Hence, The heat flows into the gas during this two-step process is 120 cal.

7 0

3 years ago

Determine la inercia rotacional de una varilla de 4 m de largo y 2 Kg de mesa si su eje de rotación esta situado a la mitad de l

Maslowich

Answer:

I = 2.667 kg m²

Explanation:

The moment of inertia of a body can be calculated by the expression

I = ∫ L² dm

For high symmetry bodies the expressions of the moment of inertia are tabulated, for a rod with its axis of rotation at its midpoint it is

I = $\frac{1}{12}$ m L²

let's calculate

I = $\frac{1}{12}$ 2 4²

I = 2.667 kg m²

8 0

3 years ago

Is it possible for you to take a hike and have the distance you cover be equal to the magnitude of your displacement?

kow [346]

Distance can be equal to displacement ... if the motion is all in a straight line ... but distance can never be greater than displacement.

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3 years ago