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Shkiper50 [21]
3 years ago
8

4. Lead has a density of 11.5g/cmº. A rectangular block of lead measures 7cm x5cmx2cm.

Physics
1 answer:
lisov135 [29]3 years ago
3 0

Answer:

(a) 70cm³

(b) 805 grams

Explanation:

(a) V = L×B×H

= 7cm×5cm×2cm

= 35cm×2cm

= 70cm³

(b) Mass = Volume × Density

= 70cm³ × 11.5g/cm³

= 805 grams

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Replacing tan ∅ = Q     .....................Equation 5

In order to get a quadratic equation that can be easily solve.

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Taking the Tan inverse of each value of Q

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