All variables must be initialized before they are used, and necessarily during declaration

What is the output of this code:

The velocity of a pitched ball (150 g) has a magnitude of 40.0 m/s.  After striking the bat the batted ball’s velocity is 59.0 m/s in the opposite direction. a) Find the magnitude of the change in momentum of the ball.     b) What is the magnitude of the Impulse applied to the ball by the bat?     c) The ball is in contact with the bat for 1.5 ms.  What is the average force applied by the bat on the ball?     d) The mass of an MBA bat is 0.940 kg.  If the bat is in contact with the ball for 1.5 ms, what is the magnitude of the force applied by the ball on the bat.  

Three identical balls are thrown from the top of a building, all with the same initial speed.  The first ball is thrown horizontally, the second is thrown at some angle above the horizontal, and the third is thrown at some angle below the horizontal.  Neglecting air resistance, rank the speeds of the balls as they reach the ground from fastest to slowest. (You must upload detailed work to back up your selection to get credit).

Tarzan, in one tree, sights Jane in another tree. He grabs the end of a vine with length 23 m steps off his tree limb, and swings down and then up to Jane’s open arms. When he arrives, his vine makes an angle of 30o with the vertical with a speed of 9.00 m/s.  How high above Jane is Tarzan when he steps off the tree limb?  

Two small blocks are sliding towards each other along a smooth floor as shown.  They collide and stick together.  If the two blocks collide at a position x = 0 m, what is their velocity after the collision. Object data:  M1 = 3 kg, M2 = 5 kg, v1 = 0.5 m/s, v2 = 0.2 m/s

A woman visits her physician with a complaint of polyuria and polydipsia. She has a family history of type 2 diabetes mellitus and is concerned that she is developing the disease. The physician notes that her previous hemoglobin A1c (Hb A1c) value was 6% (considered within healthy reference interval in the physician’s practice) with a fasting plasma glucose of 95 mg/dL. At this visit, her Hb A1c value is 8.5%. Why would the physician be correct to order an oral glucose tolerance test (OGTT) for this individual?

An example of a confirmatory laboratory test used to verify a borderline abnormal newborn screening test result in an asymptomatic individual would be gas chromatography combined with mass spectrometry, particularly for organic acid analysis.

According to the toxicology guest speaker, what is the first piece of information to inquire when interpreting a toxicology result?

All of the following factors must be demonstrated before metal toxicity is considered a diagnosis except: