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1.A ball is orbiting counterclockwise at 100 revolutions per

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1.A ball is orbiting counterclockwise at 100 revolutions per minute (rpm) around a circle of radius 10 cm. The center of the circle is at the x-y origin (0, 0). At t = 0, the ball is at (10 cm, 0).

When does the ball first reach the y axis?

2.The two vectors A and B are defined as A=(3 m, 4 m) and B=(5 m, -3 m), where the first number is XXXXX x-component of the vector, and the second number is XXXXX y-component of the vector.

What is the magnitude of vector A?

What is A + B?

3.In the year 2003 the Acme Company has twice as many employees as managers. During the next 5 years, they hire twelve employees and fire two managers. Which of the following equations is correct for the current number of managers (NM2008) and the current number of employees (NE2008)?