After a Shell Explodes at the Top of Its Trajectory,the

question 36

Multiple Choice

After a shell explodes at the top of its trajectory,the center of gravity of the fragments has an acceleration,in the absence of air resistance,

• A)of less than g downward.
• B)equal to g and downward.
• C)greater than g and downward.
• D)of g downward plus a forward component.
• E)of g downward plus a backward component.

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Definitions:

Renal Medulla

The innermost part of the kidney that contains the nephrons responsible for urine concentration.

Renal Papillae

The apexes of the renal pyramids of the kidney, which release urine into the minor calyx.

Collecting Duct

A network of tubules and ducts in the kidneys that plays a role in the concentration and transportation of urine.

Nephron Loop

Also known as the loop of Henle, it's a U-shaped tube in the kidney nephron essential for concentrating urine and conserving water in the body.