What must the driver’s eye height in the van be for the

Assignment Help Civil Engineering
Reference no: EM13535665

1.a) Show that the c/a ratio (height of the unit cell divided by its edge length) is 1.633 for the ideal hcp structure.

b) Comment on the fact that real hcp metals display c/a ratios varying from 1.58 (for Be) to 1.89 (for Cd)

2.A 1200 ft. equal tangent crest vertical curve is currently designed for 50 mi/hr. A civil engineering student contends that 60 mph is safe in a van because of the higher driver’s eye height. If all other design inputs are standard, what must the driver’s eye height in the van be for the student’s claim to be valid?

Reference no: EM13535665

Questions Cloud

Determine the maximum value of dz if the flow is to remain : Water flows downhill through a 3 in. diameter steel pipe. The slope of the hill is such that for each mile (5280 ft) of horizontal distance, the change in elevation is Δz.
What is the specific volume of the mixture : Water are mixed with 150g of another fluid (density = 790 kg/m3 ). What is the specific volume of the mixture, assuming that the volumes are additive and the mixture is homogeneous?
Derive this equation from the basic material : Absolute value signs serve as a reminder that, at this point Td and Te must be expressed as absolute temperatures.
Disregard the glass and any other mass and find entropy : Argon in a light bulb is at 110kPa, 70 degrees celsius. The light is turned off, so the argon cools to the ambient 20 degrees celsius. Disregard the glass and any other mass and find the specific entropy generation.
What must the driver’s eye height in the van be for the : A 1200 ft. equal tangent crest vertical curve is currently designed for 50 mi/hr. A civil engineering student contends that 60 mph is safe in a van because of the higher driver’s eye height. If all other design inputs are standard, what must the driv..
What is the rate of entropy generation during this process : Liquid water is to be pumped by a 10-kW pump from 100 kPa at a rate 5 kg/s. What is the highest pressure the water can reach at the exit? Neglect the kinetic and potential energy change of the water. Take the specific volume of water as constant at 0..
Determine what would be the maximum possible percent : Engineers at the General Electric turbine division are trying to improve an existing adiabatic steam turbine that receives 100 kg/s superheated steam at 10 MPa and 800 oC and after expansion and producing power, the spent steam exits the turbine at 1..
What are the two conditions of the process that are required : What are the two conditions of the process that are required for an isentropic process defined in (a) to take place ? Prove your answers with second law equation for a control volume.
Determine the velocity of the contact point in contact : Pinion gear A rolls on the fixed gear rack B with an angular velocity = 8 rad/s. Determine the velocity of the gear rack c . Assume the direction to the right as positive.

Reviews

Write a Review

Civil Engineering Questions & Answers

  Estimate the required stack height for wind speeds

A plant is to be constructed that will emit 3.5 metric tons of hydrogen sulfide per day. One of the design criteria is that the concentration 1 km downwind from the stack must not exceed 120 micrograms/m3.

  Calculate the rate of change of water mass in the segment

The segment of river shown has a rectangular cross-section, with width 50 ft. The river bed is at angle theta=10 degrees from horizontal. The average velocity is 2 ft/s at the upstream end, and 3 ft/s at the downstream end.

  Calculate the longitudinal and transverse stresses

Calculate the overall modulus of the composite, explaining your calculations and the assumptions you have made when it is loaded:

  What is the concentration of ocl-

HOCL is added to water in a tank as a disinfectant. after equilibrium is reached it is found that the pH of the water in the tank is 8.2 and the gas phase partial pressure is the head space of the tank is 0.2E-7 atm. (not: henry's law constant for..

  Which truck will cause more pavement damage

a 6 inch soil cement base and an 8 inch crushed stone subbase, which truck will cause more pavement damage?(assume drainage coefficients are 1.0)

  Determine the forces on the beam

Determine the forces on the beam and what force is needed at C to put the beam in equilibrium

  How long would it be before company could sell the property

A multinational engineering consulting firm that wants to provide resort accommodations to certain clients is considering the purchase of a three-bedroom lodge in upper Montana that will cost $250,000.

  Create depreciation schedule showing annual depreciation

Create a depreciation schedule showing annual depreciation amounts and end-of-year book values for a $26,000 asset with a 5 year service life, using the MACRS depreciation method.

  Determine the normal stress in the aluminum shell

An axial force of 200 kN is applied to the assembly by means of rigid end plates. Determine the normal stress in the aluminum shell.

  Determine what is the drag coefficient at the cars top speed

A 3000-lb car has a maximum speed (at sea level and on a level, paved surface) of 140 mi/h with 16" radius wheels, a gear reduction of 3.5 to 1, and a drivetrain efficiency of 92%. It is know that at the car's top speed the engine is producing 220..

  A car travelling at 60 mph in a construction area skids

a car travelling at 60 mph in a construction area skids into a stack of concrete barriers. skid marks leading to the

  What do you understand by the term preservation of timber

What do you understand by the term preservation of timber. Briefly explain the different methods of preservation adopted.

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