A 0.14-kg baseball moves toward home plate with a velocity vi→=-36 m/sx^{“version”:”1.1″,”math”:”vi→=-36 m/sx^”}. After striking the bat, the ball moves vertically upward with a velocity vf→=18 m/sy^{“version”:”1.1″,”math”:”vf→=18 m/sy^”}. Find the magnitude of the net impulse delivered to the ball.

Person X and person Y push against a wall. If person X pushes twice as hard against the wall as person Y, and the wall remains stationary, which one of the following statements is correct?

A skier leaves the top of a slope with an initial speed of 5.0 m/s. Her speed at the bottom of the slope is 13 m/s. What is the height of the slope? (Assume friction forces are negligible.)

In a game of pool, the white cue ball hits the stationary #5 ball. The cue ball stops, while the #5 ball moves away with the same velocity as the cue ball had originally. Suppose the two balls have the same mass. This type of collision is

FREE-RESPONSE (“SHOW-YOUR-WORK”) QUESTION 1Work this problem on scratch paper and choose an answer below. When you finish the exam, you must immediately submit your complete written solution to the eCampus dropbox set up for this problem. The dropbox can be found under the Dropbox menu in eCampus. You must show all work for full credit. A 10-kg sign is held in equilibrium by two ropes, as shown in the figure. What is the tension in rope A? (15 points total)

In which of the following ways are syphilis and yaws similar?

Why are eukaryotic parasite infections of humans more difficult to treat than bacterial infections of humans?

EXAM PROBLEM #1 Instructions: In the textbox below, for each compound, type in: What type of compound it is (acid, ionic compound, molecular compound) AND the formula of the compound using the naming rules from this class. Use the T2 button to format subscripts.  Remember to turn it on and then turn it off. Label your answers A, B, C. There is no need to write anything on your “work” pages, but you can if that helps you. Compounds: A.  strontium hypochlorite B.  chromic acid C.  copper(I) oxalate

EXAM PROBLEM #5 Question:  Is this molecule polar or nonpolar?   Instructions:  Type your answer to the question (polar or nonpolar) in the textbox below. Type an explanation for how you can tell in the textbox below.  Be specific and complete.  Show all supporting work on your “work” page.  Identify which problem it is:  #5

EXAM PROBLEM #1 Instructions: In the textbox below, for each compound, type in: What type of compound it is (acid, ionic compound, molecular compound) AND the formula of the compound using the naming rules from this class. Use the T2 button to format subscripts.  Remember to turn it on and then turn it off. Label your answers A, B, C. There is no need to write anything on your “work” pages, but you can if that helps you. Compounds: A.  strontium hypochlorite B.  chromic acid C.  copper(I) oxalate