Answer:
The risks associated with the handling of liquid hydrogen are fire, explosion, asphyxiation and extremely low temperature exposure.
Answer:
9.60%
Explanation:
Computation for the weight fraction of graphite
First step
Computation for the mass fraction for Wa using this formula
Wa=Cg-Co/Cg-Ca
Let plug
Wa=10-3/100-0
Wa=0.97
Computation for the mass fraction for Wg using this formula
Wg=Co-Ca/Cg-Ca
Let plug in the formula
Wg=3-0/100-0
Wg=0.03
Second step is to convert the mass fraction to Volume Fraction using this formula
Volume Fraction =[Wg/Pg÷(Wa/Pa)+(Wg/Pg)]*100
Let plug in the formula
Volume =[0.03/2.3 ÷(0.97/7.9)+(0.03/2.3)]*100
Volume=[0.0130435÷0.1227848+0.0130435]*100
Volume=[0.0130435÷0.135828]*100
Volume=0.096*100
Volume=9.60%
Therefore the weight fraction of graphite will be 9.60%
Answer:
x=14a+8b+16.5c
Explanation:
x=total cost
a=number of people in just aquarium
b=number of people in just IMAX
c=number of people in both
c=(14+8)×0.75=22×0.75=16.5
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Answer:
The entire place was dark and cold as the train whooshed by. This place was nothing like Platform 9 and 3/4. The rain was loud on the roof of the station, but you could still hear the faint noises of a violin. "20 pence for requests" read a sign from a man who's just trying to get by.
Explanation:
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