By how much does a 20 m steel girder on a bridge expand or shrink from an average -7o C winter to an average 36o C summer? Express you answer in units of millimeters (mm), where 1000 mm = 1 m.

Q: 1.What is the volume occupied by a kilogram of gold? (Recall that ρgold =2×104kg/m−3.) A.  5×10−3 m3…

A: GIVEN Mass of gold = 1 Kg Density of gold = 2 x 10 4 kg/m3

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Q: Arbitrarily starting at a height of 50 km above the surface of the Earth, answer the following…

A: Answers-

Q: The density of lead is 1.13 x 104 kg/m³ at 20.0°C. Find its density (in kg/m³) at 115°C. (Use a = 29…

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Q: The volume of an air bubble increases by a factor of 3.19 times as it rises from the bottom of a…

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Q: Medical implants are often made of either titanium, resin or ceramics.   Compare the following for…

A: Thermal expansion is the material's property to change its length, area and volume as temperature…

Q: Copper has a coefficient of linear expansion of 1.7 x 10^-5 K'1, If a cube made of copper has…

A: Coefficient of linear expansion of copper (α) = 1.7×10-5 k-1Dimensions of cube made of copper = 1 cm…

Q: A partially evacuated airtight container has a tight-fitting lid of surface area 77 m2 and…

A: Given:  Force, F = 480 N  Area, A = 77 m2  Outside pressure, Po = 1 x 105 N/m2

Q: The leaves of a tree lose water to the atmosphere via the process of transpiration. A particular…

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Q: How easy is it to breathe through a straw? When you breathe deeply, you pull in 4.0 L of air in…

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Q: The density of lead is 1.13 x 104 kg/m3 at 20.0°C. Find its density (in kg/m3) at 135°C. (Use a = 29…

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Q: Growth rate of bamboo Bamboo belongs to the grass family andis one of the fastest growing plants in…

A: Given: A bamboo shoot was 500 cm tall at 10:00 A.M and 515 cm tallat 3:00 P.M. Need to find the…

Q: At 28 m below the surface of the sea (density of 1476 kg/m³), where the temperature is 6°C, a diver…

A: Let V1 be the volume of the air bubble inside the sea and V2 be the volume of the air bubble when it…

Q: 1.10 If air had a constant weight of 12 N/m3 and were incompressible, what would be the height of…

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Q: The density of air is 1.3 kg/m at sea level. From your knowledge of air pressure at ground level,…

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Q: If “pure Rocky Mountain spring water” is sealed into a flexible plastic bottle in the Rockies at an…

A: Given,A pure rocky mountain water is sealed in a flexible plastic bottle at an elevation of 7500ft…

Q: An oxygen bottle of 40.0 l volume shows a pressure of 7.00 MPa inside the bottle. Then, 80.0 l of…

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Q: hree children each having a mass of 37.4 kg make a log raft by lashing together logs of diameter 32…

A: Mass of each children m=37.4 kgDiameter of logs d=32 cm or .32 mL=1.77 mρwood=750…

Q: (II) Estimate the air pressure inside a category 5 hurricane, where the wind speed is 300 km/h (Fig.…

A: It is given that,

Q: Humans evolved in Earth's atmosphere, therefore the pressures interior to the body are relatively…

A: In the given question, We have to calculate the number of sheets of paper required.

Q: By how much does a 20 m steel girder on a bridge expand or shrink from an average -7o C winter to an…

A: Length of steel girder (L) = 20 m Temperature in winters (T1) = -7o CTemperature in summers (T2) =…

Q: Consider the flow of air through a convergent duct. The inlet, throat areas are 3 and 1.3 m^2,…

A: The given data are listed below with appropriate variables. Here, A1 denotes the inlet area, A2…

Q: Please help me with both parts

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Q: The Earth's atmosphere at sea level and under normal conditions has a pressure of 1.01x105 Pa, which…

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Q: There is a maximum depth at which a diver can breathe through a snorkel tube (Fig. E12.17) because…

A: There is a maximum depth at which a diver can breathethrough a snorkel tube (Fig. E12.17) because as…

Q: At 96° F the saturation density of air is 0.04 kg/m3. If the weather report says the relative…

A: This question can be solved by using the concept of relative humidity and vapour density.

Q: A fish fills the air spaces in its porous bone with air at a pressure 1atm (normal atmospheric…

A: Write the expression for the pressure exerted on the porous bone at a depth. Here, Pa represents…

Q: Space botany requires a certain pressue of 1.20 space pressure units (SPU) for the growth biomes to…

A: 1 Space Pressure unit=3 earth atm 1earth atm=760 torr we need our answer in torr

Q: An airplane has a mass of 2.1×106 kgkg , and the air flows past the lower surface of the wings at 81…

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Q: Aquaman can withstand a pressure of 2.0 x103 kPa, what must be his depth limit?

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Q: A 19 cmcm radius air duct is used to replenish the air of a room 7.6m×6.7m×3.8m every 15 min. How…

A: The rate of airflow equals the area times the speed of the airflow. Now,

Q: A small drop of water at 27 deg celcius is in contact with the air and has a diameter of 0.7mm. If…

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Q: he pulmonary artery, which connects the heart to the lungs, has an inner radius of 2.60 mm and a…

A: Pressure between the heart and the lungs is 1.0 hPa=102 Pa, viscosity of blood is η=2.7×10-3 Nsm2…

Q: Is gasoline can be considered inelastic? Why

A: Gasoline has very few substitute. So, it is always in demand.

Q: Humans evolved in Earth's atmosphere, therefore the pressures interior to the body are relatively…

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Q: Use an Excel sheet to calculate the average wind speed (V), or the average cubic wind speed (V3):…

A: Wind power is the ability to do work by the wind that flows across any given cross-sectional area.…

Q: What is the diffusion time for oxygen accrues the 2um thick membrane separating air from blood?…

A: In the question it is given that small cap le is in the lungs are in close contact with the alveoli…

Q: Humans evolved in Earth's atmosphere, therefore the pressures interior to the body are relatively…

A: Pressure=force/Area

Q: The density of lead is 1.13 x 10“ kg/m3 at 20.0°C. Find its density (in kg/m) at 131°C. (Use a = 29…

A: Given Data Density of the lead at t1=20° C is ρ1=1.13×104 kg/m3 Coefficient of linear expansion is…

Q: A 1800 N balloon is filled with 2800m^3 of hydrogen having a specific weight of 1.5 N/m^3 A. What…

A: The lifting force from a hot air balloon depends on the density difference between balloon air and…

Q: The density of lead is 1.13 x 104 kg/m3 at 20.0°C. Find its density (in kg/m3) at 128°C. (Use a = 29…

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Human Metabolism

Being described as the most complicated machine ever encountered by humans, the human body and the cell metabolism is nothing less than a wonder. Metabolism is the set of life-sustaining chemical reactions within organisms.