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A core sample of basalt, 4 inches long and 2 inches in diameter, was tested in unconfined compression. The basalt is known to have a modulus of elasticity = 9.1 x 106 psi.
a) At a pressure of 10,000 psi, what would be the reduction in length of the sample?
b) At this pressure, what would be the vertical load on the sample?
c) At 10,000 psi stress the core showed an increase in diameter of 5.5 x 10-4 inches. What is the Poisson’s ratio for this sample?
Assume you are an observer standing at a point along a three-lane roadway. All vehicles in lane 1 are travelling at 30 mi/h, all vehicles in lane 2 are travelling at 45 mi/h, and all vehicles in lane 3 are travelling at 60 mi/h
(a) Use differentiation to find a general expression for the rocket's velocity as a function of time, (b) When is the velocity zero?
A tub of a washing machine is rotating at 50 rad/s when the power is turned off. If it takes 15s for the tub to come to rest, determine (a) the constant angular deceleration, and (b) the total number of revolutions the tub makes.
Assume the plane is flying at an altitude of 32,810 ft (10 km), where the temperature is -8 C and the pressure is 250 mb. The Pitot-static tube measures a piezometric pressure difference corresponding to 1.206 psi. What is the airspeed in both m/s..
Assuming Stokes behavior, calculate the terminal settling velocity in standard air for the following particles: (a). diameter = 10 micrometers, specific gravity =1.2; and (b) diameter = 4 micrometers, specific gravity = 2.0.
Determine the minimum height on the wall to which the firefighter can project water from the hose, so that the water strikes the wall horizontally. The speed of the water at the nozzle is Vc=48ft/s.
A semicircular open channel to be made of concrete is to be designed to carry 1.5 m^3/s at a slope of 0.00085. Manning's roughness coefficient is 0.015. Determine the dimensions of the best hydraulic section.
The following points are taken from data that is known to be of the form y = bx^m
What return period must an engineer use in the design of a bridge opening for 50% risk that flooding will occur at least once in two successive years
If e is some value at midspan and e=0 at each end of the beam, and the cable within the beam has a parabolic profile. what is the expression I need to use to determine e at some other lenth along the beam
Granny viola has been saving money in the Bread and Butter mutual fund for 15 years . She has been a steady depositor over those years and has a pattern of putting $100 into the account every 3 months.
The velocity of propagation, c of surface waves is assumed to depend on the water depth, y, the water density, and the acceleration due to gravity, g. Express these variables as a dimensionless group.
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