A Boy and Girl on Ice Skates Face Each Other

question 37

Multiple Choice

A boy and girl on ice skates face each other.The girl has a mass of 20 kg and the boy has a mass of 30 kg.The boy pushes the girl backward at a speed of 3.0 m/s.As a result of the push,the speed of the boy is

• A)zero
• B)2.0 m/s
• C)3.0 m/s
• D)4.5 m/s
• E)9.0 m/s

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Definitions:

Whole Blood

Blood with all its components (red blood cells, white blood cells, plasma, and platelets) intact.

Hemolytic Transfusion Reaction

An adverse response following a blood transfusion, where the recipient's immune system destroys the transfused red blood cells, leading to potentially severe complications.

Nonhemolytic Febrile Reaction

A type of transfusion reaction characterized by fever without the destruction of red blood cells, typically caused by antibodies against donor white blood cells.

Intravenous Cannula

A thin tube inserted into a vein, usually in the hand or arm, to administer medications, fluids, or to collect blood samples.