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3 years ago

Hector used 240 Joules of energy to lift (straight up) a TV that weighed 80 Newtons. How high did Hector lift the TV?

Chemistry

1 answer:

Inessa [10]3 years ago

7 0

Assuming that you need a simple model for your answer:

W=F*h

F: weight, W: Energy, h: height

F=W/h => 3 m (since all units are in SI)

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You are planting flowers in large pots. You plan to plant flowers in 10 pots. 15 cups of potting soil will fill one pot. A bag o

dimaraw [331]

Answer:

I will need six (6) bags of potting soil

Explanation:

Since you plan on planting in 10 pots and need 15 cups of potting soil per pot, the total amount of potting soil you need <em>(in cups)</em> is 10 X 15 = 150 cups of potting soil.

We have that a bag contains 25 sups. to get the number of bags needed, we have to divide 150 by 25. This will give us 150 / 25 = 6 bags.

Therefore, I will need six (6) bags of potting soil

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4 years ago

DNA profiling is one of the best sources of evidence to identify the guilty party because ______.

Vika [28.1K]

Answer:

Explanation:

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4 years ago

Look at the diagram. Which shows the correct arrangement of electrons in a hydrogen molecule?

skelet666 [1.2K]

It’s diagram because hydrogen has one proton and you’re not talking about ions so it needs another electron to stable itself

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3 years ago

Write the recation of formation of ions by fluorine and potassium

bekas [8.4K]

Answer: The reaction of formation of ions by fluorine and potassium is $K^{+} + F^{-} \rightarrow KF$ .

Explanation:

Atomic number of potassium is 19 and its electronic distribution is 2, 8, 8, 1. So, in order to attain stability it needs to lose 1 electron due to which it forms $K^{+}$ ion.

Atomic number of fluorine is 9 and its electronic distribution is 2, 7. In order to attain stability it needs to gain one electron and hence forms $F^{-}$ ion.

Therefore, when both these ions come in contact with each other then it leads to the formation of KF compound.

The reaction equation for this is as follows.

$K^{+} + F^{-} \rightarrow KF$

Thus, we can conclude that the reaction of formation of ions by fluorine and potassium is $K^{+} + F^{-} \rightarrow KF$ .

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3 years ago

I need help with that question please ASAP

storchak [24]

The answer is the effort because that's where you would push to raise the object

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3 years ago