A 300-Kg Child Sits on One End of a Long Uniform

question 18

Multiple Choice

A 30.0-kg child sits on one end of a long uniform beam having a mass of 20.0 kg,and a 40.0-kg child sits on the other end.The beam balances when a fulcrum is placed below the beam a distance 1.10 m from the 30.0-kg child.How long is the beam?

• A) 2.12 m
• B) 1.98 m
• C) 1.93 m
• D) 2.07 m
• E) 2.20 m

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Definitions:

Epithelial Tissue

A type of tissue that lines the outer surfaces of organs and blood vessels, as well as the inner surfaces of cavities in many internal organs.

Hormones

Chemical messengers produced by glands in the body that regulate physiological activities and behavioral responses.

Gases

Substances that exist in a state that has no fixed shape and adapts to the volume of its container, characterized by low density and viscosity.

Adipose Tissue

A type of body tissue containing stored fat that serves as a source of energy, insulation, and cushioning.