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Anna35 [415]
3 years ago
10

Vicky wanted to investigate water evaporation. She placed 50 mL of distilled water in three identical glass jars. She left one j

ar in the sunlight, one jar in the dark, and one jar in a shady area. After four hours, she measured how much water was still in each jar. Which of the following variables was held constant in the experiment? A. air temperature B. amount of water in jars at the end of the investigation C. light exposure D. amount of water placed in jars
Physics
2 answers:
IgorC [24]3 years ago
4 0

Answer:

D. the amount of water placed in jars

Explanation:

it was the same for all of the jars at the beginning

Korolek [52]3 years ago
3 0
D because it makes the most sense
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The potential difference across a and b is 15 v. determine the electrical charge on the 3 μf capacitor will be 45 *  10^{-6} C

Capacitance, property of an electric conductor, or set of conductors, that is measured by the amount of separated electric charge that can be stored on it per unit change in electrical potential. Capacitance also implies an associated storage of electrical energy.

Charge (Q) stored in a capacitor is the product of its capacitance (C) and the voltage (V) applied to it. The capacitance of a capacitor should always be a constant, known value. So we can adjust voltage to increase or decrease the cap's charge. More voltage means more charge, less voltage... less charge.

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Difference between electrolytes and nonelectrolytes.
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Answer:

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Explanation:

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Entropy = mass* (S₂ - S₁)

Entropy = 3.33* (4.102 - 3.2548)

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