$M{C}^2$ Physics $1180$

$6.$ A block of wood has specific gravity $0\mathrm{.}756.$ When placed in water, what percent of the volume of the wood is above the surface?

$7.$ Describe these states of matter. What relative temperatures are associated with them?

a$)$ liquid.

b$)$ plasma.

c$)$ gas.

d$)$ solid.

$8.$ A block of wood has a density $0\mathrm{.}550\frac{g}{c}{m}^3$ and mass $420$ g $.$ It floats in a container of oil $($the oil's density is $0\mathrm{.}850\frac{g}{c}{m}^3).$ What volume of oil does the wood displace?

$9$ What is the absolute pressure $($in SI units$)$ of a tire $($on Earth where the external pressure is $1$ atmosphere$)$ when the gage pressure is $35L\frac{b}{i}{n}^2?$

$10.$ By what factor is the total pressure greater at a depth of $750$ m in water than at the surface where pressure is one atmosphere? $($water density $=1\mathrm{.}00{10}^{3}k\frac{g}{m^3},1$ atmosphere pressure $=1\mathrm{.}01{10}^5\frac{N}{m^2}$ and $g=9\mathrm{.}80\frac{m}{s^2}).$