A 6.0-kg ball is held in the hand with the lower arm making a 90-degree angle with the upper arm. The lower arm and hand have a combined mass of 2.5 kg and a center of mass 18 cm from the elbow joint. The ball is 40 cm from the elbow joint. If the biceps muscle is 12 cm from the center-of-mass point of the lower arm and hand, calculate the force that the biceps muscle must exert in order to keep the lower arm and hand horizontal.
Definitions:
Common Stock
Equity ownership in a corporation, providing voting rights and a share in the company's profits through dividends.
Stockholders' Equity
Stockholders' equity, also known as shareholders' equity, reflects the ownership value remaining in a company after all liabilities are deducted from total assets.
Noncontrolling Interest
The portion of equity interest in a subsidiary not owned by the parent company, reflecting minority shareholders' ownership.
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