What will be the decrease in the volume of the block

Assignment Help Civil Engineering

Reference no: EM13564831

1.Given: In 1975 the population of a country was 12 million people. In 2000 the population of the same country was 16.4 million people. Over the 25-year period the country had a birth rate of 30 per thousand per year, and a net migration rate of zero. Assume that population followed the exponential function. Find. Estimate the death rate in the country in deaths per thousand per year

2.A rectangular block of aluminum 30 mm × 60 mm × 90 mm is placed in a pressure chamber and subjected to a pressure of 100 MPa. If the modulus of elasticity is 70 GPa and Poisson’s ratio is 0.333, what will be the decrease in the longest side of the block, assuming that the material remains within the linear elastic region? What will be the decrease in the volume of the block?

Reference no: EM13564831

Questions Cloud

What is thefrequency of the sound heard by the crew : An aircraft carrier has a speed of 13.0 m/s relative to thewater. What is thefrequency of the sound heard by the crew on the ship

Determine the stack-gas so2 concentration in units of micro : The sulfur dioxide (SO2) stack-gas concentration from fossi-fuel combustion is 2 ppmv. Determine the stack-gas SO2 concentration in units of micro grams/m^3. Assume 0C and 1 atm pressure

Find what is the minimum angle the ladder can make : A 3.0-m-long ladder leans against a frictionless wall. What is the minimum angle the ladder can make with the floor without slipping

Estimate the population for the year 2011 assuming : In 1800 an undeveloped country had a population of 10 million with birth and death rates of 60 and 52 per thousand per year. The situation continued until 1900, when the death rate instantaneously was reduced to 10, but the birth rate remained consta..

What will be the decrease in the volume of the block : A rectangular block of aluminum 30 mm × 60 mm × 90 mm is placed in a pressure chamber and subjected to a pressure of 100 MPa. If the modulus of elasticity is 70 GPa and Poisson’s ratio is 0.333, what will be the decrease in the longest side of the bl..

Find the rate of flow and the power exerted by the pumps : Water is pumped from a reservoir whose surface elevation is 1390 ft to a second reservoir whose surface elevation is 1475 ft. The connecting pipeline is 4500 ft long and 12 in. in diameter. If the pressure during pumping is 80 psi at a point midway o..

What is theangular speed of the turntable : A large turntable rotates about a fixed vertical axis, makingone revolution in 8.00 s. What is theangular speed of the turntable when the child is 3.00 m from the center

Evaluate what is the volume rate of flow : A 6.0 cm diameter horizontal pipe gradually narrows to 4.0 cm.When water flows through this pipe at a certain rate, What is the volume rate of flow

Evaluate how many beats per second are heard : Two identical mandolin strings under 200 N of tension are soundingtones with frequencies of 455 Hz. How many beats per second are heard

User Account

All Pages