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Chapter 1: Q.8 (page 28)
Is the particle in Fig. 1.3 speeding up? Slowing down? Or can you tell? Explain.
Speed is defined as the rate of change of distance over time.
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Determine the signs (positive, negative, or zero) of the position,
velocity, and acceleration for the particle in FIGURE Q1.7.
For your senior project, you would like to build a cyclotron that will accelerate protons to of the speed of light. The largest vacuum chamber you can find is in diameter. What magnetic field strength will you need?
Does the object represented in FIGURE Q1.5 have a positive or negative value of ay? Explain.
You drop a soccer ball from your third-story balcony. Use the particle model to draw a motion diagram showing the ball鈥檚 position and average velocity vectors from the time you release the ball until the instant it touches the ground.
You are watching a jet ski race. A racer speeds up from rest
to 70 mph in just a few seconds, then continues at a constant
speed. Draw a basic motion diagram of the jet ski, using images
from the video, from 10 s before reaching top speed until 10 s
afterward.
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