A wave has a wavelength of 1.2 m and a wave speed of 24 m/s. What is the
2 answers:
Answer:A
Explanation:
From the wave formulae, wave speed= wavelength * frequency we can obtain the frequency by making it the subject of the formula
Frequency= wave speed/ wavelength
The details are found in the image attached. The frequency refers to the number of cycles covered by a wave per unit time
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Answer:
Tetrahedral
Explanation:
For the repulsion of the free electron pair theory, the shape of a molecule will be to repel the bonds and the free electrons on the central atom. In a molecule of carbon tetrachloride, the central atom (C) has no free electrons, so, the shape that repels better the charge is tetrahedral, as shown below.
