Answer:
C) The student and desk have to be in contact to apply the force.
Explanation:
I am pretty sure :)
Answer is 38/3 or 12.67
3x=38
x=38/3
therefore answer is the one mentioned above
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➷ We can use the information to form an equation, which we can solve later
M = 2x + 8
Simply substitute the daughter's age into x:
M = 2(56) + 8
Now solve:
M = 120
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➶ Hope This Helps You!
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Answer:
The most notable of these are known as the "six simple machines": the wheel and axle, the lever, the inclined plane, the pulley, the screw, and the wedge, although the latter three are actually just extensions or combinations of the first three.
Start by converting mg to g. There is .001g in every miligram, so there is 0.4g in this sample.
Then find the molar mass of ibuprofen (C13H18O2) which is 206.3g/mol
Then divide grams by the molar mass to get moles of C13H18O2: (0.4g)/(206.3g/mol) = 1.94x10^-3mol C13H18O2
Then multiply moles by Avogadro's number to get molecules: (1.94x10^-3mol)/(6.02x10^23) = 1.17x10^21 molecules of ibuprofen (C13H18O2)
