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BaLLatris [955]
3 years ago
9

Which most likely indicates a chemical change has occurred?

Physics
2 answers:
Law Incorporation [45]3 years ago
4 0

green liquid becoming a red liquid

Orlov [11]3 years ago
4 0
Green to red
Others are state changes which are physical not chemical
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Please help!
Yanka [14]

Answer:

V=3.57 × 10^6 m/s

hope it is helpful..

7 0
3 years ago
Which of the following questions best highlights a shortcoming of the big bang theory?
kaheart [24]
<span>A. How could energy become the matter present today? </span>
4 0
3 years ago
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What is the greatest cause for concern regarding hydroelectric power?
nexus9112 [7]

Answer:

destroys habitats is the main one

Explanation:

eye sore can be one and it can burst causing a flood is also one :)

6 0
3 years ago
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The speed of light in a vacuum is 299,792,458 m/s. Which gives this number in three significant digits? 299,000,000. m/s 2.99 x
dexar [7]

Answer: 2.99(10)^{-8} m/s

Explanation:

When a number is written in scientific notation (representing the number using powers of base ten) it is expressed so that it contains a digit in the place of the units and all other digits after the decimal point, multiplied by the respective exponent.  

Then, the significant figures (or significant digits) will be the digits that are before the power of ten.  

Now, in the case of the number 299,792,458 if we want to write it with three significant digits, we have to write it in scientific notation as:

2.99(10)^{-8}

7 0
3 years ago
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The position of a 50 g oscillating mass is given by x(t)=(2.0cm)cos(10t−π/4), where t is in s. If necessary, round your answers
Leona [35]
For the answer to the question above, this is the maximum displacement, the spring has only elastic potential energy.
spring is constant @ 5 N/m
maximum displacement = 2 cm = 0.02 m
elastic potential energy = 1/2 kx²
= 0.5 x 5 x 0.02²
So the answer would be
= 0.001 Joules
5 0
3 years ago
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