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3 years ago

When Ricky sells his used desk for $50, money is a _____.

Physics

2 answers:

9966 [12]3 years ago

8 0

Medium of exchange, im doing oddessey rn and this is correct.

sweet-ann [11.9K]3 years ago

3 0

The answer is the first option. When Ricky sells his used desk for $50, money is a medium of exchange.<span> As you can see, money permits that Ricky gets rid of his desk (because he prefers the $50 dollars, likely to perform other purcahse) while the purchaser of the desk prefers the used desk over the $50 (likely because he needed a desk and did not want to spend more than $50). In this way, the money permits that one purchases the product that he wanted (the used desk) and permits that Ricky has money to purchase othet object that he wants.</span>

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Electromagnetic radiation with a wavelength of 525 nm appears as green light to the human eye. Calculate the frequency of this l

12345 [234]

Answer:

5.71×10¹⁴ Hz

Explanation:

Applying,

v = λf................. Equation 1

Where v = speed of the electromagnetic radiation, λ = wavelength of the electromagnetic radiation, f = frequency

make f the subject of the equation

f = v/λ............. Equation 2

From the question,

Given: λ = 525 nm = 5.25×10⁻⁷ m,

Constant: Speed of electromagnetic wave (v) = 3.0×10⁸ m/s

Substitute these values into equation 2

f = (3.0×10⁸)/(5.25×10⁻⁷)

f = 5.71×10¹⁴ Hz

Hence the frequency of light is 5.71×10¹⁴ Hz

5 0

2 years ago

Does gravity have an effect on the potential difference of a battery?

Sonja [21]

Answer: The correct answer is "No".

Explanation:

Gravity: It is the force which causes object to fall on the earth. It is the force which attracts bodies towards each other.

Potential difference: It is defined as the potential acting between the two points. The work done in moving the unit positive charge from one location to the another location.

The potential difference in battery is caused by the electrodes. There are two terminals in battery: Negative terminal which is at lower potential and Positive terminal which is at higher potential. It forces the electrons to flow in the circuit which constitutes the current.

The gravity and the potential difference have no relation between them.

Therefore, gravity have no effect on the potential difference of a battery.

5 0

3 years ago

The bending of a seismic waves as it crosses a boundary is called ___

Pavel [41]

<span>The correct answer is: C) refraction.

Hope this helps :)</span>

5 0

2 years ago

Read 2 more answers

The chemical formula for phosphorus trichloride is PC13. In one to two sentences, explain how you would build or draw a model of

lara [203]

To build a model of PCl3, you need two colors of ball. One color will represent each atom. Three balls will be the of one color and one ball will be of a different color.

A model is a visual representation of something that exists in reality. The purpose of a model is to aid a person to conceptualize a given fact.

A molecular model of PCl3 is a visual representation of the molecule. If we have two colors of ball, three of one color and one of a different color, we can have a model of PCl3.

In this model, the three balls of the same color represents chlorine atoms while the lone ball of a different color represents the phosphorus atom.

Learn more: brainly.com/question/156574

8 0

2 years ago

The volume of air is 53.28 m 3 . Convert it into scientific notation. 5.328×101 m3 532.8×101 m3 0.5328×103 m3 Both A and C

aivan3 [116]

Explanation:

It is given that, the volume of air is 53.28 m³. We need to convert it into scientific notation.

Any number in scientific notation can be given by :

$N=a\times 10^b$