(Solved): 4,5,6,7 4) (From question above) What is the force of buoyancy on the metal block? a) 95N b) 7.5 ...

4) (From question above) What is the force of buoyancy on the metal block? a) $95\mathrm{N}$ b) $7.5\mathrm{N}$ c) $2.5\mathrm{N}$ d) $1,000\mathrm{N}$ 5) A decrease of 20 degrees in the Celsius scale is equivalent to a decrease of degrees Fahrenheit, and a decrease of Kelvin a) 20,180 b) 36,20 c) $16.7,20$ d) 20,36 6) According to the Equation of Continuity, blood speed increases as blood flows from a healthy region of an artery and into a stenosis (i.e. $v_2>$ $v_1$ from the figure). According to Bernoulli's principle, when comparing the blood pressure ${\underline{P}}_2$ of the stenosed region versus the pressure $P_1$ of the healthy region, one should find $P_1>P_2$. If $v_1=0.20\mathrm{m}/\mathrm{s},v_2=0.40\mathrm{m}/\mathrm{s}$, and $P_1=120\mathrm{mm}\mathrm{Hg}$, what is $P_2$ ? (assume blood mass density $=1060\mathrm{kg}/{\mathrm{m}}^3$ ) a) $80\mathrm{mm}\mathrm{Hg}$ b) $180\mathrm{mm}\mathrm{Hg}$ c) $56\mathrm{mm}\mathrm{Hg}$ d) $30\mathrm{mm}\mathrm{Hg}$ A 18.2 $?\mathrm{L}$ tank of carbon monoxide gas ( $\mathrm{CO}$ ) is at a pressure of $9.20\times 10^5\mathrm{Pa}$ and temperature of $17.2^{?}\mathrm{C}$. Find the following 4 questions: (Note $1\mathrm{L}=10^{?3}{\mathrm{m}}^3$ ) 7) Use the ideal gas law to calculate the number of moles of gas in the tank. a) $811\mathrm{mol}$ b) $45.9\mathrm{mol}$ c) $4\times 10^{13}\mathrm{mol}$ d) $6.94\mathrm{mol}$