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aliina [53]
3 years ago
8

Two workers used a force of 100 N to move a sofa 4 meters in 2 seconds how much power

Chemistry
1 answer:
r-ruslan [8.4K]3 years ago
3 0

Answer:

200 watts

Explanation:

First we have to find total work:

W =F(d)

W = 400J

Then plug that answer into the Power formula.

P = W/(t_f-t-i)

P = 400/2s

P = 200 W

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c) 32yd

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When does hydrogen first begin to fuse into helium in the star formation process?
valentina_108 [34]

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8 0
2 years ago
Place the following compounds in order of increasing magnitude of lattice energy. Ga2o3 rbi mgs k2s.
valentinak56 [21]

Increasing order of magnitude of lattice energy is rbi <K2s< Mgs < Ga2O3.

Lattice energy is the energy change upon the formation of one mole of a crystalline ionic compound from its constituent ions. It depends upon the charges of the ion and the distance between the center of the ion when they are packed in the form crystal. Basically lattice energy is determined by the charge of the atom and the atomic radii of the atoms.

In Ga2O3, Ga has 3+ and O has 2- ions .so it has the lattice energy of 6.this is calculated by multiplying q1 and q2 .this attracts strongly.

In rbI , R has +1 and i has -1.so it ha lattice energy of -1.ther is no strong attraction nor lattice energy.

In Mgs, Mg has +2 and s has -2 .this is not as strong as Ga2o3 but stronger than rbi.

In K2S, k has =1  and s has 2-.this is stronger than rbi.

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3 0
1 year ago
Hydrochloride acid +_________ zinc chloride +hydrogen​
Klio2033 [76]

Answer:

Hydrochloride acid + Zinc = Zinc Chloride + Hydrogen

Explanation:

When Hydrochloride acid and Zinc react, it results in the formation of Zinc chloride and hydrogen.

<em>Hope I helped</em>

3 0
2 years ago
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