It is important to understand the differences between chemical and physical changes. chemical changes result in new substances, but physical changes do not. which process is an example of a physical change?
f) water turns to steam when boiled over a bunsen burner.
g) carbon combines with oxygen to form carbon dioxide gas.
h) water breaks down into hydrogen and oxygen gases.
i) limestone breaks down into lime and carbon dioxide when heated.
Answers: 3
Physics, 22.06.2019 17:40, yoongnzl
Aspring is used to stop a 50-kg package which is moving down a 20º incline. the spring has a constant k = 30 kn/m and is held by cables so that it is initially compressed 50 mm. knowing that the velocity of the package is 2 m/s when it is 8 m from the spring and neglecting friction, determine the maximum additional deformation of the spring in bringing the package to rest.
Answers: 1
Physics, 22.06.2019 21:30, tashaylinm02
Which sections of the heating curve illustrate this process?
Answers: 2
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