Solve the Problem $35 \mathrm { lb }$ Is Required to Hold A

question 421

Multiple Choice

Solve the problem.
-A force of $35 \mathrm { lb }$ is required to hold a $78 \mathrm { lb }$ toolbox on an incline. What angle does the incline make with the horizontal?

• A) \(77.0 ^ { \circ }\)
• B) \(26.7 ^ { \circ }\)
• C) \(63.3 ^ { \circ }\)
• D) \(13.0 ^ { \circ }\)

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Definitions:

Hemoglobin

Hemoglobin is the iron-containing oxygen-transport metalloprotein in the red blood cells of most vertebrates, responsible for the red color.

Carboxyhemoglobin

Carboxyhemoglobin is a complex of carbon monoxide and hemoglobin that forms in red blood cells upon exposure to carbon monoxide, preventing normal oxygen delivery to the body.

Carbaminohemoglobin

A compound of hemoglobin and carbon dioxide, and it is one of the ways in which carbon dioxide is transported in the blood.

Hemoglobin

This substance in red blood cells facilitates the transfer of oxygen from the lungs to the body's organs and tissues and carries carbon dioxide from these areas back to the lungs.