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# Tutor profile: Farnaz M.

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Farnaz M.
Physics Tutor for more than 4 years
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## Questions

### Subject:Farsi

TutorMe
Question:

What is the Persian suffix that converts a noun into an adjective and an adjective into a noun?

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Farnaz M.

Suffix i converts a noun into an adjective. Most Persian last names end with this letter. Some examples include: Irân (noun)----->Irâni (adjective) Or Iran (noun)----> Iranian (adjective) Herfe (noun) -----> Herfei (adjective) Or Profession (noun) -----> Professional (adjective) Suffix i also converts an adjective into a noun: Garm (adjective) -----> Garmi (noun) Or Warm (adjective) -----> Warmth (noun)

### Subject:Physics

TutorMe
Question:

What is relative velocity in physics?

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Farnaz M.

Suppose you are walking on a moving train. Is your velocity with respect to the train the same as your velocity with respect to the ground? Do you move away from a person who is sitting inside the train with the same velocity that you move away from a person sitting outside of the train? If you move with respect to the train with velocity $$V_A$$ and the train moves with respect to the ground with velocity $$V_B$$, your relative velocity with respect to the ground is your velocity with respect to the train plus train's velocity with respect to the ground: $$V_C = V_A + V_B$$

### Subject:Algebra

TutorMe
Question:

The price of a book went up from $40 to$50. By how many percent did the price increase?

Inactive
Farnaz M.

First let's find by how much the price increased: $$50-40=10$$ Now let's divide the price increase by the initial price: $$\frac{10}{40} = \frac{1}{4}$$ Now let's multiply the result by 100 to find percentage: $$\frac{1}{4}\times 100 = 25\%$$ The price increased by 25 percent.

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