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qaws [65]
4 years ago
9

Please help me !! Im so confused

Physics
2 answers:
zhuklara [117]4 years ago
5 0
Option D. because vinegar is an acid and it turns litmus paper red. so the solution must be a base. remember

blue to red, a-cid. red to blue, alkaloo.
goblinko [34]4 years ago
3 0
The option is D as it produces the opposite reaction
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Your roommate leaves a 120W fan running in your apartment.Over the course of an hour,how much thermal energy does the fan add to
zubka84 [21]

Answer:

4.32\cdot 10^5 J

Explanation:

Power is related to energy by the following relationship:

P=\frac{E}{t}

where

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In this problem, we know that

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- the fan has been running for one hour, which corresponds to a time of

t = 1 h \cdot (60 min/h)(60 s/min)=3600 s

So we can re-arrange the previous equation to find E, the energy (in the form of thermal energy) released by the fan:

E=Pt=(120 W)(3600 s)=4.32\cdot 10^5 J

3 0
3 years ago
Read 2 more answers
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lyudmila [28]

Answer: Answer to the I'm Tall when I'm Young, and I'm Short when I'm Old. What am I? Riddle is a candle

Hope this helps

7 0
3 years ago
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Why is traveling between the stars (by creatures like us) difficult?
mariarad [96]

Answer:

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