What proportin of steel plates have elongations greater

Assignment Help Civil Engineering
Reference no: EM13320222

Elongation (in %) of steel plates treated with aluminium are random with probability density function

f(x)={x/250 20<x<30 and 0 otherwise

a)What proportin of steel plates have elongations greater than 25 %?

b)Find the mean elongation.

c)Find the variance of the elongations.

d)Find the standard deviation of the elongations.

e)Find the cumulative distribution function of the elongations.

f)A particular plate elongates 28%. What proportion of plates elongate more than this?

Reference no: EM13320222

Questions Cloud

Define the service department costs : The manager of an operating department just received a cost report and has made the following comment with respect to the costs allocated from one of the service departments.
Explain o2 gas molecules under the same conditions : If He gas has an average kinetic energy of 4310 J/mol under certain conditions, what is the root mean square speed of O2 gas molecules under the same conditions
What depreciation method does amazon use : What depreciation method does Amazon use for property and equipment? What is the range of useful lives for buildings and for fixtures and equipment? Do these useful lives make sense?
What is the magnetic force acting on the charge : a charge of 80 mC moves with a velocity of 7*10^7 m/s in a magnetic field of 0.6T which is oriented at an angle of 30 degrees above the horizontal plane
What proportin of steel plates have elongations greater : Elongation (in %) of steel plates treated with aluminium are random with probability density function f(x)={x/250 20
Surf beach state college : Surf Beach State College (SBSC) has a business school with three products, undergraduate degrees, graduate degrees, and executive education. SBSC has three service departments.
What types of controls do you think : What kinds of risks does a firm like Amazon.com face with respect to safeguarding its assets? What types of controls do you think it already has in place to minimize these risks?
Define throughput in regards to wireless network : Define 'throughput' in regards to wireless network. Use a practical method (e.g., using an software) to measure throughput of a wireless network? You should provide any appropriate screenshots.
Compute the direction of the magnetic field : a proton moves vertically upward perpendicular to a uniform magnetic field and deflects to the right as you watch it. What is the direction of the magnetic field

Reviews

Write a Review

Civil Engineering Questions & Answers

  What can be concluded about the work load for the worker

At the morning break, an industrial engineer quickly measures the worker's heart rate and finds a peak value of 110 beats/min one minute after stopping work and a value of 95 beats/min three minutes after stopping work.

  How to compute the final lengths and azimuths of lines

calculate departures and latitudes, misclosures in departures and latitude, and traverse relative precision. Balance the departures and latitude using the compass rule, and calculate coordinates of points B, C, and D.

  What would be the estimated total annual dollar savings

what would be the estimated total annual dollar savings of a company with an annual direct labor payroll of 2,500,000 and a fixed overhead rate of 150 percent of direct labor , if the company initiated a methods and standards program

  Determine tension in each cable and reaction at socket joint

A 10 ft. boom is acted upon by the 840-lb force. Determine the tension in each cable and the reactionat the ball-and-socket joint at A.

  Highest point of the piping system

a) The maximum flow rate that can be achieved without cavitation occurring in the piping system. b) The maximum elevation of the highest point of the piping system to avoid cavitation.

  Find final velocity in mph if the drop height is increased

given: Vf=Vi + a t and Sf=Si + Vi t + 1/2 a t a= 27 ft/sec^2 accelerates from 10 mph to 93 mph in 4.5 seconds designers decided to modify the rise to become the tallest roller coaster in the world, find final velocity in mph if the drop height is ..

  Determine the vertical stress of 4m below the centre

Determine the vertical stress of 4m below the centre of shallow foundation 3 x 3m carrying a uniform pressure of 275 kN/m3. Plot the variation of vertical stress with depth (up to 10m) below the centre of the foundation

  Determine capitalized cost of project of city development

The lubbock board of city development has decided to ask the city council to construct a tunnel under the snowcapped mountain range east to downtown lubbock so that out of town visitors can reach historic prairie dog town.

  What additional air pressure is needed to overcome

A two post in ground car lift uses compressed air to force water under two aluminum pistons that move in unison (both pistons at same elevation) to raise and lower the vehicles.

  How to draw and label a flowchart for the system

The temperature of steam at the inlets of both turbines is 500 C, and the enthalpy of steam is 3027 kJ/kg at the exit of high pressure turbine, and 2385 kJ/kg at the exti of the low pressure turbine.

  Determine estimated unknown speed if the data were obtained

In an attempt to estimate the speed of a vehicle just before it hit a traffic signal pole, a traffic engineer measured the length of the skid marks made by the vehicle and performed trial runs at the site to obtain estimate if the coefficient of f..

  Determine the optimum emise velocity per unit speed

If the aircraft flies at 9000 m standard altitude, make a plot of drag (in N) versus speed (from stall to 240 m/s) and determine the optimum emise velocity (minimum drag per unit speed).

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd