The next 5 questions deal with the following situation: A baby Superman pulls on a string with a force of 6.0 N and causes the 2.0-kg toy on the other end of the string to speed up at a rate of 0.50 m/s2 as it moves toward him.  Assume the string is massless and horizontal, the toy moves to the right, and the floor is rough.  Use g = 9.80 m/s2 if needed.

All of the following are common overuse syndromes EXCEPT?

Describe the pictured device with as much detail as possible.  SELECT ALL THAT APPLY.

Estimate the number of times the earth will rotate on its axis during a human’s lifetime.

A light-year is the distance that light travels in vacuum in 1 year. The speed of light is 3.00 × 108 m/s. How many miles are equal to one light-year? (1 mi = 1609 m, 1 yr = 365 d)

Which of the following forces is a third law pair for the friction force the floor exerts on the toy?

Which of the following is the most reasonable estimate of the number of characters (typed letters or numbers) in a 194-page book? Assume an average of 600 words per page and a reasonable average number of letters per word.

Take the positive direction as upward and g = 9.80 m/s2 . A ball is thrown downward from the top of a roof with a speed of 25.0 m/s. After 2.00 s, its velocity will be

Indicate whether the following quantities are vectors or scalars.

What are the characteristic features of the chordates?