A plastic sphere floats in water with 60.0% of its volume submerged. This same sphere floats in another liquid with 40.0% of its volume submerged. a. Determine the density of the plastic sphere. b. Find the density of the second liquid.

ege.com/course.html?courseld%=16202200&OpenVellumHMAC=a34faccb64fc064a9ce89812d0e27d84#10001 PH114 Fall 2020 Godang Course Home <9 Problem 11.54 A 0.019 kg record with a radius of 11 cm rotates with an angular speed of 33 3 rpm. Part A Find the angular momentum of the record. Express your answer using two significant figures. Hνα ΑΣφ L = kg · m² /s Submit Previous Answers Request Answer X Incorrect; Try Again; One attempt remaining Provide Feedback MacBook Air 80 DII DD F3 F4 F5 F6 F7 F8 F9 23 %24 & * 4. 7 8 < CO 5

SP3. A steel block with a density of 7800 kg/m³ is suspended from a string in a beaker of water so that the block is com- pletely submerged but not resting on the bottom. The block is a cube with sides of 3 cm (0.03 m). a. What is the volume of the block in cubic meters? b. What is the mass of the block? c. What is the weight of the block? d. What is the buoyant force acting on the block?

Three glass vessels of different shapes contain water up to the rim. The height of each vessel is the same. Which is correct? A. cannot be determined, not enough information. B. Pressure at the bottom of all vessels is the same. C. Pressure at the bottom of vessel 1 is the highest. D. Pressure at the bottom of vessel 2 is the highest. E. Pressure at the bottom of vessel 3 is the highest.

Water is moving at a speed of 2.2 m/s through a hose with an internal diameter of 1.55 cm. a. What is the flow rate, in liters per second?  b. The fluid speed in this hose’s nozzle is 15.0 m/s. What is the nozzle’s inside diameter, in centimeter?

A 1.00-kg beaker containing 1.63 kg of oil (density = 916 kg/m3) rests on a scale. A 1.94-kg block of iron is suspended from a spring scale and is completely submerged in the oil (see figure below). Find the equilibrium readings of both scales. top scale      N bottom scale      N

5. In another experiment, the students drop a small object of an unknown substance into the density column. If this object floats on top of layer D, what may the students conclude? a. The object has a density less than 0.92 g/cm³. b. The object has a density less than 1.00 g/cm³. c. The object has a density less than 1.33 g/cm³. d. The object has a density less than 1.42 g/cm³.

3. A rectangular block of volume Vo is placed in a tank of water and sinks to the bottom. Describe the buoyant force acting on this block. What could be a possible density of the block?   a. The buoyant force equals the weight of a volume of water of Vo, 5.00 grams/cm3   b. No buoyant force acts on the block, 0.0500 grams/cm3   c. The buoyant force equals the weight of a volume of water of Vo, 0.450 grams/cm3   d. The buoyant force equals the weight of a volume of water of Vo, 0.100 grams/cm3   e. The buoyant force equals the weight of a volume of water of one-half of Vo, 0.333 grams/cm3

8. A piece of copper has a mass of 2.6 kg. a. What is the volume of this piece of copper?b. The copper is then totally submerged in water. What is the buoyant force acting on it? c. What is the piece of copper’s apparent weight in the water?

The gravitational force exerted on a solid object is 5.25 N as measured when the object is suspended from a spring scale as in Figure a. When the suspended object is submerged in water, the scale reads 3.98 N (Figure b). Find the density of the object. kg/m3 Scale B MgV