How much energy must be added to a 1-kg piece of granite with a specific heat of 600 J/(kg°C) to increase its temperature from 20° C to 100° C?

A. 48,000 J
B. 4,800 J
C. 1,200,000 J
D. 60,000 J

In a laboratory, nakisha mixes sodium hydroxide solution with an indicator called phenolphthalein. when combined, they create a pink solution. nakisha wonders if mixing other solutions with phenolphthalein will also create this pink color. how could she use the scientific inquiry process to explore it further?

When applying kirchhoff's rules, one of the essential steps is to mark each resistor with plus and minus signs to label how the electric potential changes from one end of the resistor to the other. the circuit in the drawing contains four resistors, each marked with the associated plus and minus signs. however, one resistor is marked incorrectly. which one is it?

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