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3 years ago

5

Identify the number of significant figures in each of these measurements of an object length: a. 76.48 cm b. 76.47 cm c. 76.59 c

m

1 answer:

ryzh [129]3 years ago

4 0

All of the measurements have 4

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3 years ago

The specific heat of copper is 0.40 joules/ g °c. How much heat is needed in joules to change the temperature of a 55 gram subst

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Formula used :

$q=m\times c\times (T_2-T_1)$

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