According to Avogadro constant 1 mole = 6.02 x 10^23 what about 9.25 x10 ^21
that is 1 mole x ( 9.25 x10 ^21) / (6.02 x10^23) = 0.0154 moles
Work = Force * distance (aka Weight * height lifted)
Work to lift 1 brick:
W = mgh = (4 kg)(9.8 m/s²)(15 m) = 588 J
Work to lift 520 bricks:
W = 520(588 J) = 305,760 J
Answer:
The radius of the atom Ta is 142pm
Explanation:
To solve this question we need to know that for a body-centered cubic lattice we have the equations:
X = 4/√3 R
<em>Where X is edge length and R is radius of the atom in the lattice.</em>
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If adge length of unit cell is 328 pm:
328pm = 4/√3 R
328pm * √3 / 4 = R
142pm = R
The radius of the atom Ta is 142pm
