What principle or physical law is used in the determination of specific gravity/density of a liquid using the Westphal's balance, and hydrometer? Give a short description and explanation of the principle.
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- Consider the pressure on a shot putter's hand as he throws the heavy shot. Calculate the average pressure, in newtons per square meter, exerted on the palm of a shotputter's hand by the shot if the area of contact is 48.5 cm^2 and he exerts a force of 795 N on it. P? What is the ratio of this pressure to the atmospheric pressure?If you weigh 170.0 lb at sea level, how much would you weigh at the top of Mt. Everest? Assume the Earth’s radius is 4000 miles and Everest is 5.000 miles high.(a) What is the specifi c gravity of mercury, the liquid used in thermometers, if it has a density of 13.6 g/mL? (b) What is the density of ethanol if it has a specifi c gravity of 0.789?
- Calculate the force pushing down needed to fully submerge a block of wood, with density of 100 kg/m^3 and volume of 0.8 m^3, in water. Give your answer N with 1 decimal place. Density of water is 1000 kg/m^3 Use g = 10 m/s^2 Air pressure at sea level = 10^5 Pascal1. Using the Stokes’s-law equation, calculate the particle diameter, dst, of magnesium oxide powder, ρ = 3.65 g/cm3 , in an aqueous medium having a density of ρ0 = 1.05 g/cm3 at 25◦C and a viscosity of 0.013 poise (i.e., 0.013 g cm-1 sec-1 ). The particles settle a distance of 24.0 mm in 1.00 hr under gravity acceleration g of 980 cm/sec2. Hint: Remember to convert 24.0 mm/hr to cm/sec for the rate of settling of the particles.Suppose two worlds, each having mass M and radius R, coalesce into a single world. Due to gravitational contraction, the combined world has a radius of only -R. What is the average density of the combined 4" world as a multiple of po, the average density of the original two worlds? Po Need Help? Read It
- Solve the following: 1.) Determine the absolute pressure at 250 cm below the free surface of oil (specific gravity = 0.80) if the atmospheric pressure is 101 kPa. a.) A barometer reads 760 mm Hg and a pressure gage attached to a tank of oil (s = 0.8) reads 850 cm. What is the absolute pressure in the tank in kilogram per square centimeter? b.) In a condenser containing air and water, the air pressure is 22.1 kPa absolute. What is the gage pressure in kiloNewton per square meter at a point 1.37 m below the water surface.Atmospheric pressure. Atmospheric pressure P at altitude a is given by P = Poe¬0.00005a where Po is the pressure at sea level. Assume that Po = 14.7 lb/in´ (pounds per square inch). a) Find the pressure at an altitude of 1000 ft. b) Find the pressure at an altitude of 20,000 ft. c) At what altitude is the pressure 14.7 lb/in? d) Find the rate of change of the pressure, and interpret its meaning.I could estimate the area of the thumbnail with the formula of a square like a=a^2 to use as a reference to estimate how many pounds the atmospheric pressure on us equals. What formulas and theories should I apply to get that pressure in pounds?
- CONSIDER A CONTAINER OF HEAVY CREAM WHUCH HAS A DENSITY OF 1008KG/M^3? IF WE WHIP THE CREAM TO THREE TIMES ITS VOLUME, WHAT IS THE SPECIFIC GRAVITY AND SPECIFIC WEIGHT OF THE WHIPPED CREAM?A future rectangular ship (tanker) filled with oil. If the dimensions of the ship are (250 m) long, (80 m) wide, and (80 m) high. Determine how far the bottom of the ship is ?below sea level consider the total mass of the ship with the oil (10.2 10 kg) and the sea density (p 1024 kg/m).A bowling ball has a densityof 5.6 kg/m3. What is this densityin g/cm3?ANS: 5.6×10-3g/cm3