*100. GO A gold prospector finds a solid rock that is composed solely of quartz and gold. The mass and volume of the rock are, respectively, 12.0 kg and 4.00 × 10-³ m'. Find the mass of the gold in the rock.
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- UU 2. Water is poured into a U-tube as shown in the A1 Ag Oil A1 A2 figure. The left arm of the tube has cross-sectional area A1 of 10.0 cm2, and the right arm has a cross- sectional area A2 of 5.00 cm2. 150 grams of oil are then poured into the right arm as shown. The two H. liquids do not mix. [Poit = 750 [Answer in kg m 3 significant figures] Water a) Determine the length of the oil column in the right arm of the U-tube. b) Determine the height (H) of the water column in the left arm above the water surface in the right arm?Spherical particles of a protein of density 1.7 g/cm3 are shaken up in a solution of 20°C water. The solution is allowed to stand for 1.0 h. If the depth of water in the tube is 7.4 cm, find the radius of the largest particles that remain in solution at the end of the hour. ?μm15 Tuesday 4/19 lapeuty of mi Students are given three cubes made of unidentified materials. They need to determine whether or not the three cubes are made of the same material. They measure the mass of each cube and record it in the table. A student immediately concludes that the cubes are made of three different materials. Cube Mass (g) A 42 C 7 What observation would best support the students' conclusion? A. The cubes all have the same volume. B. The cubes all have a shiny appearance. C. The cubes are all attracted to a magnet. D. The cubes all conduct heat.
- A cylindrical tank of height 2.00 m and diameter 1.50 m is full of beer of density 1.05X103 kg/m3. Beer is discharged through a small valve of diameter 3.0 cm and 20 cm near the bottom of the tank. Beer flux is defined as the amount of beer discharged per second. a) When the beer level is 1.50 m high, what is the speed of discharged beer? What is the beer flux? b) How many minutes does it take to drain the beer?A 100 mL beaker holds 120 g of liquid. What is the liquid’s density in SI units?It is known that a cubical object made of cast aluminum 0.213 m on a side contains a hollow cavity also in the shape of a cube but of unknown dimensions. If the mass of the object is 22.8 kg, determine the length of each side of the interior cubical cavity. The density of aluminum is 2.70 103 kg/m3.
- 1. A U-tube contains liquid of unknown density. An oil of density 780 kg/m³ is poured into one arm of the tube until the oil column is 11.5 cm high. The oil-air interface is then 5.0 cm above the liguid level in the other arm of the U-tube. Find the density of the liquid. kg/m3 0741 na741 na41na74na74 741 na741 na74 n741 na741 741 na741 na741 na7 0741 na741 n1. a cubical object made of cast aluminum 0.224 m on a side contains a hollow cavity also in the shape of a cube but of unknown dimensions. If the mass of the object is 29.5 kg, what is the length of each side of the interior cubical cavity. density of Al = 2.70 103 kg/m3.Calculate the mass of a solid gold rectangular bar that has dimensions Iwh = 4.80 cm x 12.0 cm x 25.0 cm. (The density of gold is 19.3 x 103 kg/m³.) kg
- what is the density of water in kg/m^3You have three objects of varying shapes and sizes: Object 1 is a rectangular block of tin. Object 2 is a cube of aluminum. Object 3 is a sphere of copper. a. the density of tin is 5.75g/cm2. What is the mass of object 1 in kg if the rectangular block has a volume of 1.34L? b. what is the volume in cubic inches of object 2 if the cube of aluminum 7.58 inches on a side? c. what is the mass in kg of object 2? the density of aluminum is 2.70g/cm3 d. what is the volume in cm3 of object 3 if the sphere of copper has a diameter 8.62cm? the volume of the sphere is 4 {pi}^3/3 e. what is the mass in kg of object 3? Copper has a density of 8.96g/cm33.1