Answer:
τ = - (8.1 N-m) i - (10.8 N-m) j - (8.1 N-m) k
Explanation:
Given
r = (0 m) i + (0.9 m) j - (1.2 m) k
F = (9 N) i + (0 N) j - (9 N) k
We can apply
τ = r x F
τ = ((0 m) i + (0.9 m) j - (1.2 m) k) x ((9 N) i + (0 N) j - (9 N) k)
⇒ τ = - (8.1 N-m) i - (10.8 N-m) j - (8.1 N-m) k
Answer:
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Answer:
True
Explanation:
For a stationary fluid, the pressure will vary in the x, y and z directions.
<span>Get a periodic table of elements. ...Find your element on the periodic table. ...Locate the element's atomic number. ...Determine the number of electrons. ...Look for the atomic mass of the element. ...<span>Subtract the atomic number from the atomic mass.</span></span>
Answer:
Option D is correct = 8.12 grams of NaCl
Explanation:
Given data:
Moles of sodium chloride = 0.14 mol
Mass of sodium chloride = ?
Solution:
Formula:
Number of moles = mass of NaCl / Molar mass of NaCl
Molar mass of NaCl = 58 g/mol
Now we will put the values in formula.
0.14 mol = Mass of NaCl / 58 g/mol
Mass of NaCl = 0.14 mol × 58 g/mol
Mass of NaCl = 8.12 g of NaCl
Thus, 0.14 moles of NaCl contain 8.12 g of NaCl.
