Answer:
a. 4.5secs
Explanation:
From the question, the equation describing the height is given by

at the point when the rock hit the ground, the height,h will be zero.
Hence we can have

hence the rock will hit the ground in 4.5secs
They are toxic and all non metals
They do because if one thing is moving and the is there both moveing in once
The geographical region where I would expect the warmest weather is: C. in the southeast.
<h3>What is a weather map?</h3>
A weather map can be defined as a type of chart that is typically used to provide information about the average atmospheric condition of a particular geographical region over a specific period of time.
Based on the weather map shown in the image attached below, we can infer and logically deduce that the geographical region where the warmest weather is expected is in the southeast due to its very high atmospheric pressure.
Read more on weather here: brainly.com/question/24730207
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Red, Orange, Yellow, Green, Blue, Indigo, Violet.
Remember ROYGBIV.