Q: When you're meeting someone for the first time, you typically want to follow up a greeting by telling them your name. To do this in Italian, say mi chiamo (mee kee-AH-moh) followed by your name. If you want to ask the other person their name, you might say come ti chiami (informal) or come si chiama (formal). If you've initially said your name first, you can also use e tu (informal) or e lei(formal), both of which mean "and you." After you've learned someone's name, it's polite to say piacere (pee-ah-SHEHR-reh), which means "pleased to meet you." You can also say piacere di consoscerti (informal) or piacere di consocerla (formal). If you're meeting someone around your age and speaking informally, you might say incantato (or incantata if you present as female) instead. It's similar to the English word "enchanted," and is typically intended to be flirtatious. Especially if you're a tourist traveling in Italy, the person you've just met will likely want to know where you're traveling from. To tell someone where you're from, you can say vengo da (VEEN-goh dah) or sono di (SOH-noh dee), followed by the name of your country (or even the city, if your hometown is well-known). To ask where someone is from, you can say di dove sei (informal) or di dov'è (formal). At this point in a conversation, if you only know a few words in Italian, you should let the person you're talking to know that. Then, you can find out if they speak English or another language in which you are fluent. On the other hand, if you want to practice your Italian, you can ask them to continue speaking Italian to you. Some phrases you might use include:  "Parli inglese?" (informal) or "Parla inglese?" (formal): "Do you speak English? "Può parlare più lentamente?": "Please speak more slowly." "Parli un'altra lingua oltre l'italiano?": "Do you speak a language other than Italian?" "Parla italiano con me": "Speak to me in Italian."
A: Tell the person your name after your initial greeting. Let the person know you're pleased to meet them. Explain where you are from. Discuss your proficiency in Italian.

Q: You can calculate the average acceleration of an object over a period of time based on its velocity (its speed traveling in a specific direction), before and after that time. To do this you need to know equation for acceleration: a = Δv / Δt where a is acceleration, Δv is the change in velocity, and Δt is the amount of time it took for that change to occur.  The unit for acceleration is meters per second per second or m/s2. Acceleration is a vector quantity, meaning it has both a magnitude and a direction. The magnitude is the total amount of acceleration whereas the direction is the way in which the object is moving. If it is slowing down the acceleration will be negative. You can further define Δv and Δt:  Δv = vf - vi and  Δt = tf - ti where vf is the final velocity, vi is the initial velocity, tf is the ending time, and ti is the starting time.  Because acceleration has a direction, it is important to always subtract the initial velocity from the final velocity. If you reverse them, the direction of your acceleration will be incorrect. Unless otherwise stated in the problem, the starting time is usually 0 seconds. First write down your equation and all of the given variables. The equation is a = Δv / Δt = (vf - vi)/(tf - ti). Subtract the initial velocity from the final velocity, then divide the result by the time interval. The final result is your average acceleration over that time.  If the final velocity is less than the initial velocity, acceleration will turn out to be a negative quantity or the rate at which an object slows down. Example 1: A race car accelerates uniformly from 18.5 m/s to 46.1 m/s in 2.47 seconds. What is its average acceleration?  Write the equation: a = Δv / Δt = (vf - vi)/(tf - ti)  Define the variables: vf = 46.1 m/s, vi = 18.5 m/s, tf = 2.47 s, ti = 0 s. Solve: a = (46.1 – 18.5)/2.47 = 11.17 meters/second2.   Example 2: A biker traveling at 22.4 m/s comes to halt in 2.55 s after applying brakes. Find his deceleration.  Write the equation: a = Δv / Δt = (vf - vi)/(tf - ti)  Define the variables: vf = 0 m/s, vi = 22.4 m/s, tf = 2.55 s, ti = 0 s. Solve: a = (0 – 22.4)/2.55 = -8.78 meters/second2.
A:
Define the equation for average acceleration. Understand the variables. Use the formula to find acceleration.