Show the complete solution. 1.)A barrel contains a 0.120 m layer of oil floating on water that is 0.250 m deep. The density of the oil is 600 kg/m^3.What is the gauge pressure at the oil- water interface and at the bottom of the barrel?

Show the complete solution. 1.)A barrel contains a 0.120 m layer of oil floating on water that is 0.250 m deep. The density of the oil is 600 kg/m^3.What is the gauge pressure at the oil-water interface and at the bottom of the barrel?

1. If an immersed object displaces 8 N of fluid, what is the buoyant force on the block?EXPLAIN. 2. How should you place a screw on a table such that it exerts the smallest pressure against it?.EXPLAIN WHY. 3. An object with a volume of 100cm^3 is submerged in a swimming pool. What is the volumeof water displaced?. Why?. 4. You apply a flame to 1 L of water for a certain time and its temperature rises by 2°C. If youapply the same flame for the same time to 2L of water, by how much does its temperaturedecrease? . Why? 5. Which has greater kinetic energy? A) a car traveling at 30 km/hr. B) a car of half the mass traveling at 60 km/hr C) both the same. D) need more information EXPLAIN. 6. A melon is projected into the air with 100 J of kinetic energy in the presence of air resistance.When it returns to its initial level its kinetic energy isA) less than 100 J.B) more than 100 J.C) 100 J.D) need more informationEXPLAIN  7. Two identical golf carts move at different speeds. The faster cart…

A very deep point of the Pacific Ocean is at a depth of 10,100 m below the surface. What is the gauge pressure in the water at that point? The density of seawater is 1025 kg/m3. Ignore the slight variations of g and ρ with depth. Assume g = 9.80m/s2. Assume 3 significant digits.   A. 8.88 ×107 Pa   B. 2.22 ×108 Pa   C. 1.11 ×108 Pa   D. 1.01 x108 Pa   E. 3.33 ×108 Pa   F. 5.55 ×107 Pa

What is the gauge pressure at point A. Write the answer using 2 significant figures (very important)

Fluids & Pressure 16. A 50.0-kg woman balances on one heel of a pair of high heeled shoes. If the heel is circular and has a radius of 0.500 cm, what pressure does she exert on the floor? 17. A glass tube contains mercury. What would be the height of the column of mercury which would create pressure equal to 1.00 atm? 18. A straightforward method of finding the density of an object is to measure its mass and then measure its volume by submerging it in a graduated cylinder. What is the density of a 240-g rock that displaces 89.0 cm³ of water?

A U shaped tube with diameter 2.00 cm, open to the air on both ends, contains mercury. Oil ispoured into the left arm until the oil column is 15.0 cm high. Then water is poured into the rightarm until the water column is 10.0 cm.a. On which side of the tube is the mercury level higher? Support your answer.b. What is the change in height of the mercury on both sides of the tube?c. To make the mercury return to its original level, which fluid would you have to add to thetube, and how much would you have to add (in cm cubed)?

The same fluid (density unknown) fills three depressions on an alien planet. Depression #1 is a small pond. Depression #2 is a large lake. Depression #3 is a very large ocean. All of these depressions have the same depth. Gravity g is the same at all three locations. However the value of gravity is unknown. How do the gauge pressures at the bottoms of the three depressions compare?   A. P3 > P2 > P1   B. They are the same   C. P1 > P2 > P3   D. Can't tell without knowing the dimensions of the depressions.