What is the mass of a standard U.S. baseball?

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Multiple Choice

What is the mass of a standard U.S. baseball?

Explanation:
The key idea is the official mass range for a standard U.S. baseball. Official rules specify a mass of about 5 to 5 1/4 ounces. Converting to grams (1 ounce ≈ 28.35 g) puts that around 142 to 149 g (more precisely 141.75 g to 148.83 g). Among the options, anything outside that range isn’t allowed, so 150 g is too heavy and 140 g is too light. The masses within the range, including 143 g and 143.50 g, both fit, but 143.50 g is a precise value that falls squarely within the standard range, making it the best match.

The key idea is the official mass range for a standard U.S. baseball. Official rules specify a mass of about 5 to 5 1/4 ounces. Converting to grams (1 ounce ≈ 28.35 g) puts that around 142 to 149 g (more precisely 141.75 g to 148.83 g). Among the options, anything outside that range isn’t allowed, so 150 g is too heavy and 140 g is too light. The masses within the range, including 143 g and 143.50 g, both fit, but 143.50 g is a precise value that falls squarely within the standard range, making it the best match.

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