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On the index card , write: your name your preferred email address your phone number (cell preferred) last Math clas

Welcome to Physics& 221!. Write your name on a popsicle stick in pen. On the index card , write: your name your preferred email address your phone number (cell preferred) last Math class you completed last Science class you completed last English class you completed

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On the index card , write: your name your preferred email address your phone number (cell preferred) last Math clas

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  1. Welcome to Physics& 221! Write your name on a popsicle stick in pen • On the index card, write: • your name • your preferred email address • your phone number (cell preferred) • last Math class you completed • last Science class you completed • last English class you completed • your major/intended career

  2. Syllabus quiz! • Meet two people you didn’t already know. • What are their names? • What did they do over the break? • If you skip class and all assignments all quarter but get 100% on all the exams, what grade will you end up with? • What percent of your total grade is each online homework worth? • If you’re going to miss class for a doctor’s appointment how can you make up the participation points? • What are two things we might do during lecture to learn concepts? • What are two things we might do during lecture to learn problem solving? • Can you and your partner share data for the Application Projects? • If you turn in an Application Project a day late how many points will you lose?

  3. Are the following statements reasonable? You may need to convert units to decide. Adrian is 180 cm tall. I rode my bike to school at 50 m/s. A professional skier reaches the bottom of a hill going 25 m/s. I can throw a baseball a distance of 2 km. I can throw a baseball at a speed of 50 km/hr. Kristine’s mass is 180 kg.

  4. Find the magnitude of and

  5. Three forces are exerted on an object on a tilted floor. The vectors representing these forces in Newtons are shown. What’s the x-component of ? What’s the y-component of ? What are the magnitude and direction of ?

  6. 1. A ball is going 15 m/s in the northwest initially. An impulse is applied which causes the ball to go 15 m/s in the northeast direction. * Graphically find the change in velocity, ∆v = vf - vi. * What are the magnitude and direction of the change in velocity, ∆v = vf - vi? vi = 15m/s vf = 15 m/s

  7. How long does it take a marker to fall 5’7”?

  8. A lead ball is dropped into a lake from a diving board 4.60 m above the water. After entering the water, it sinks to the bottom with a constant velocity equal to the velocity with which it hit the water. The ball reaches the bottom 3.90 s after it is released. How deep is the lake?

  9. A particle’s position on the x-axis is given by the function x(t) = (t2 - 6.0 t + 4.0) meters, where t is in seconds. Where is the particle when vx = 6.0 m/s? • An airplane accelerates from rest at a constant rate of 5.0 m/s2 along a runway that is 800 m long. If the plane reaches takeoff speed at the end of the runway, • a. what is the time needed to takeoff? • b. what is the plane’s takeoff speed?

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