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ludmilkaskok [199]
2 years ago
12

A rectangular block has the density of 350g/cm3 the dimensions are 3.5 6.cm 2.5

Physics
1 answer:
LekaFEV [45]2 years ago
7 0

Answer:

18375g

Explanation:

\boxed{density =  \frac{mass}{volume} }

∴ mass = density \times volume

Let's find the volume of the rectangular block.

Volume

= length ×breadth ×height

= 3.5 ×6 ×2.5

= 52.5cm³

Mass of the block

= 350(52.5)

= 18375g

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Answer:

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a) no phase change

b) reflected ray has a phase change of 180º

c) no phase change

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e) there is a phase change

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