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tundamental mode for the spring ?(5 points) piece of wood is floating on the surface of...
a piece of wood is floating at the surface of some water as illustrated. the wood...
a piece of wood is floating at the surface of some
water as illustrated. the wood has a circular cross section and a
height h=3.0cm. the density of the wood is 0.41g/cm^3. what is the
distance y from the surface of the water to the bottom of the
wood?
the water to the battom of the wood? h Wood
Question 9 (1 point) A piece of wood, cut from a magnolia tree, with density Pwood...
Question 9 (1 point) A piece of wood, cut from a magnolia tree, with density Pwood = 572 kg/m, is tied with a string to the bottom of a water-filled flask, as shown in the figure. The wood is completely immersed. The tension in the string is 0.123 N. What is the volume of the piece of wood? The wood is completely immersed. The tension in the string is 0.123 N. What is the volume of the piece of wood?...
A 0.500 kg piece of granite is heated 21.5 °C by a sitting in the sun...
A 0.500 kg piece of granite is heated 21.5 °C by a sitting in the sun and thereby absorbs 8.5 kcal of heat. What is the specific heat of the granite rock? . 4. An electric current heats a 221 g (0.221 kg) copper wire from 20.0 °C to 38.0 °C. How much heat was generated by the current? (copper = 0.093 kcal/kgCo) How much heat is required to change 0.500 kg of water from a liquid at 50. °C...
110 points] A U-tube of uniform cross-sectional area A is open both ends. It contains waterand...
110 points] A U-tube of uniform cross-sectional area A is open both ends. It contains waterand oil. The reference level y =0 the interface between the oil and water. The water surface is y at 50 mm above the reference level, and the oil surface is y2 65 mm above the reference level. What is the density of the oil? Oil 65 m 50 min Waler Density = kg / m3 2. [12 points] A 30-kg block is floating on...
Consider a submarine in seawater with a water density of 휌 = 1026 kg/m 3 ....
Consider a submarine in seawater with a water density of
휌
= 1026 kg/m
3
. The
submarine can be modeled as a cylinder with 50 m length and a
diameter of 10 m.
The sole material weight is 2500000
kg. Submarines load seawater as ballast to
dive. Without ballast water, the buoyancy force would keep it
floating. How much
percentage of the submarine volume need to be filled with ballast
water so that the
vessel can submerge so that...
A greenhouse has a well insulated concrete floor which is 10m x 10m x 0.1m and...
A greenhouse has a well insulated concrete floor which is 10m x 10m x 0.1m and a density of 2000 kg/m3 . There are also 20 barrels of water in the greenhouse with a total volume of 4m3 . Take the density of water as 1000 kg/m3 . Take the heat capacity of concrete as 900 J / (kgK) and the heat capacity of water as 4120 J / (kgK) . (a) How much additional energy will the floor store...
#2 Problem 1: (A) Hot water at a rate of 0.2 Liter/s passing through a gas...
#2
Problem 1: (A) Hot water at a rate of 0.2 Liter/s passing through a gas wall-mount heater placed upstream in the basement and heats the water from 5°C to a 60°C for a shower. Taking the density o water to be 1 kg/L, determine the total heat added in the heater. (25 points) -5℃ T イ1.60℃ water is in subcooled in the streami -ue.oon KJ/S is volume flow rate (m'/s) & is mass flow rate (kg/s) v2 for each...
April 11, 2019 Name Problem # 1-55 points In the final stages of production, a supply fluid for a...
April 11, 2019 Name Problem # 1-55 points In the final stages of production, a supply fluid for a hospital is sterilized by heating it from 25°C to 80°C, as it moves at 0.2 m/s through a straight thin- walled stainless steel tube of 15-mm diameter, and 10 meter in length. The tube is surrounded by water at 100°C Treating this set-up as a heat exchanger, determine the log-mean temperature difference Assuming zero resistance to heat transfer through the stainless...
1. 1. The primary energy savings in tep (1 MWh -0.086 tep) and diesel, which involves the direct use of heat from a geothermal resource to cover a heat demand of 100 kW for 3,500 h / year, assum...
1. 1. The primary energy savings in tep (1 MWh -0.086 tep) and diesel, which involves the direct use of heat from a geothermal resource to cover a heat demand of 100 kW for 3,500 h / year, assuming that this demand will be covered with diesel boiler of average yield 0.8 (for diesel 1.12 tep/ton gas oil), they are: a) 30.1 tep/year, 26.9 ton/year b) 37.6 tep/year, 33.6 ton/year c)41.2 tep/year, 36.8 ton /year 1. 2. A hydraulic pump...
(15 points) An ice cube of mass 0.0340 kg and temperature -10.00 °C is placed in...
(15 points) An ice cube of mass 0.0340 kg and temperature -10.00 °C is placed in the steam room at a gym. The steam room, which is quite large, is filled with 2.000 kg of steam at a temperature of 110.0 °C (a) (5 points) How much ice is present, and at what temperature, when the ice and steam reach thermal equilibrium? Your answer should be two numbers (b) (5 points) How much water is present, and at what temperature,...
a piece of wood is floating at the surface of some
water as illustrated. the wood has a circular cross section and a
height h=3.0cm. the density of the wood is 0.41g/cm^3. what is the
distance y from the surface of the water to the bottom of the
wood?
the water to the battom of the wood? h Wood
Question 9 (1 point) A piece of wood, cut from a magnolia tree, with density Pwood = 572 kg/m, is tied with a string to the bottom of a water-filled flask, as shown in the figure. The wood is completely immersed. The tension in the string is 0.123 N. What is the volume of the piece of wood? The wood is completely immersed. The tension in the string is 0.123 N. What is the volume of the piece of wood?...
A 0.500 kg piece of granite is heated 21.5 °C by a sitting in the sun and thereby absorbs 8.5 kcal of heat. What is the specific heat of the granite rock? . 4. An electric current heats a 221 g (0.221 kg) copper wire from 20.0 °C to 38.0 °C. How much heat was generated by the current? (copper = 0.093 kcal/kgCo) How much heat is required to change 0.500 kg of water from a liquid at 50. °C...
110 points] A U-tube of uniform cross-sectional area A is open both ends. It contains waterand oil. The reference level y =0 the interface between the oil and water. The water surface is y at 50 mm above the reference level, and the oil surface is y2 65 mm above the reference level. What is the density of the oil? Oil 65 m 50 min Waler Density = kg / m3 2. [12 points] A 30-kg block is floating on...
Consider a submarine in seawater with a water density of
휌
= 1026 kg/m
3
. The
submarine can be modeled as a cylinder with 50 m length and a
diameter of 10 m.
The sole material weight is 2500000
kg. Submarines load seawater as ballast to
dive. Without ballast water, the buoyancy force would keep it
floating. How much
percentage of the submarine volume need to be filled with ballast
water so that the
vessel can submerge so that...
#2
Problem 1: (A) Hot water at a rate of 0.2 Liter/s passing through a gas wall-mount heater placed upstream in the basement and heats the water from 5°C to a 60°C for a shower. Taking the density o water to be 1 kg/L, determine the total heat added in the heater. (25 points) -5℃ T イ1.60℃ water is in subcooled in the streami -ue.oon KJ/S is volume flow rate (m'/s) & is mass flow rate (kg/s) v2 for each...
April 11, 2019 Name Problem # 1-55 points In the final stages of production, a supply fluid for a hospital is sterilized by heating it from 25°C to 80°C, as it moves at 0.2 m/s through a straight thin- walled stainless steel tube of 15-mm diameter, and 10 meter in length. The tube is surrounded by water at 100°C Treating this set-up as a heat exchanger, determine the log-mean temperature difference Assuming zero resistance to heat transfer through the stainless...
1. 1. The primary energy savings in tep (1 MWh -0.086 tep) and diesel, which involves the direct use of heat from a geothermal resource to cover a heat demand of 100 kW for 3,500 h / year, assuming that this demand will be covered with diesel boiler of average yield 0.8 (for diesel 1.12 tep/ton gas oil), they are: a) 30.1 tep/year, 26.9 ton/year b) 37.6 tep/year, 33.6 ton/year c)41.2 tep/year, 36.8 ton /year 1. 2. A hydraulic pump...
(15 points) An ice cube of mass 0.0340 kg and temperature -10.00 °C is placed in the steam room at a gym. The steam room, which is quite large, is filled with 2.000 kg of steam at a temperature of 110.0 °C (a) (5 points) How much ice is present, and at what temperature, when the ice and steam reach thermal equilibrium? Your answer should be two numbers (b) (5 points) How much water is present, and at what temperature,...
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