On the Earth,when an Astronaut Throws a 0

question 50

Multiple Choice

On the earth,when an astronaut throws a 0.250-kg stone vertically upward,it returns to his hand a time T later.On planet X he finds that,under the same circumstances,the stone returns to his hand in 2T.In both cases,he throws the stone with the same initial velocity and it feels negligible air resistance.The acceleration due to gravity on planet X (in terms of g) is

• A)g/4.
• B)g/2.
• C)g/ .
• D)g .
• E)2g.

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Definitions:

Reducing Sugar

Any sugar that is capable of acting as a reducing agent because it has a free aldehyde group or a free ketone group.

α-D-Fructofuranose

An isomer of fructose where the furanose ring form predominates, characterized by its specific configuration at the anomeric carbon.

Methyl Glycoside

Glycosides formed by the reaction of a sugar with methanol, characterized by a methoxy group replacing the glycosidic hydroxyl group of the sugar.

Mutarotation

The change in optical rotation due to the change in equilibrium between two anomers of a sugar solution over time.