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Igoryamba
3 years ago
7

Which of the following statements is true?

Chemistry
1 answer:
Verizon [17]3 years ago
7 0
A is automatically wrong since protons have a +1 charge. B is wrong since it states electrons have no charge. C is wrong since it says electrons have no charge. Therefore we are left with D.
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Agustina was standing on the edge of a cliff of unknown height holding a bowling ball. She wanted to find the height of the clif
nlexa [21]

Answer:

433 m

Explanation:

Since the fall represents motion under gravity, we use the equation

s = ut - 1/2gt² where s = height of cliff or distance bowling ball falls through, u = initial velocity of bowling ball = 0 m/s(since it starts from rest), t = time = 9.4 s and g = acceleration due to gravity = -9.8 m/s².

So, substituting the values of the variables into the equation, we have

s = 0 m/s × 9.4 s - 1/2 × 9.8 m/s² × (9.4 s)²

s = 0 m - 1/2 × -9.8 m/s² × 88.36 s²

s = 1/2(865.928 m)

s = 432.964

s ≅ 433 m

5 0
3 years ago
Do the alkali metals tend to gain or lose electrons in chemical reactions?
timofeeve [1]
Noble Gases more often than not don't respond on the grounds that they don't tend to pick up or lose electrons. Salt and Alkaline Earth Metals are delicate and soften at low temperatures. Incandescent lamp are extremely receptive nonmetals since they effortlessly acknowledge electrons from different components.
6 0
3 years ago
!! PLEASE NO COPY AND PASTE FROM THE INTERNET !! how are pulleys used in the real world
Alborosie

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they use in industrial deliveries

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3 years ago
Which of these is a characteristic<br> of index fossils
dimulka [17.4K]

Answer: A index fossil is any animal or plant preserved in the rock record of the earth that is characteristic of a particular span of geologic time or environment. A useful index fossil must be distinctive or easily recognizable, abundant, and have a wide geographic distribution and a short range through time.

Explanation:

8 0
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Which directly contribute to sea level rise?(1 point) It's actually earth science.
Rudiy27

Answer:?Any one have the answers?

Explanation:d

8 0
3 years ago
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