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ENGINEERING
HIGH SCHOOL
When an emergency vehicle approaches you from in front or behind you, what should you do?
ENGINEERING
COLLEGE
An experimental arrangement for measuring the thermal conductivity of solid materials involves the use of two long rods that are equivalent in every respect, except that one is fabricated from a standard material of known thermal conductivity kA while the other is fabricated from the material whose thermal conductivity kB is desired. Both rods are attached at one end to a heat source of fixed temperature Tb, are exposed to a fluid of temperature [infinity] T[infinity], and are instrumented with thermocouples to measure the temperature at a fixed distance x1 from the heat source. If the standard material is aluminum, with kA= 200 W/m·K, and measurements reveal values of TA= 75°C and TB= 70°C at x1 for Tb= 100°C and [infinity] T[infinity]= 25°C, what is the thermal conductivity kB of the test material?
ENGINEERING
COLLEGE
Assignment 1: Structural Design of Rectangular Reinforced Concrete Beams for Bending Perform structural design of a rectangular reinforced concrete beam for bending. The beam is simply supported and has a span L=20 feet. In addition to its own weight the beam should support a superimposed dead load of 0.50 k/ft and a live load of 0.65 k/ft. Use a beam width of 12 inches. The depth of the beam should satisfy the ACI stipulations for minimum depth and be proportioned for economy. Concrete compressive strength f’c = 4,000 psi and yield stress of reinforcing bars fy = 60,000 psi. Size of stirrups should be chosen based on the size of the reinforcing bars. The beam is neither exposed to weather nor in contact with the ground, meaning it is subjected to interior exposure.• Use the reference on "Practical Considerations for Rectangular Reinforced Concrete Beams" • Include references to ACI code – see slides from second class • Include references to Tables from Appendix A • Draw a sketch of the reinforced concrete beam showing all dimensions, number and size of rebars, including stirrups.
ENGINEERING
COLLEGE
An equal-tangent sag vertical curve is designed for 45 mi/h. The low point is 237 ft from the PVC at station 112 37 and the final offset at the PVT is 19.355 ft. If the PVC is at station 110 00, what is the elevation difference between the PVT and a point on the curve at station 111 00
ENGINEERING
COLLEGE
Be a qt today lolololololol
ENGINEERING
COLLEGE
1. An automobile travels along a straight road at 15.65 m/s through a 11.18 m/sspeed zone. A police car observed the automobile. At the instant that the twovehicles are abreast of each other, the police car starts to pursue the automobile ata constant acceleration of 1.96 m/s². The motorist noticed the police car in his rearview mirror 12 s after the police car started the pursuit and applied his brakes and decelerates at 3.05 m/s². (Hint: The police will not go against the law.)a) Find the total time required for the police car to overtake the automobile.b) Find the total distance travelled by the police car while overtaking theautomobile.c) Find the speed of the police car at the time it overtakes the automobile.d) Find the speed of the automobile at the time it was overtaken by the police car.
ENGINEERING
HIGH SCHOOL
There's supposed to be a browser that's called WebExplorer. I need it for my school. But I accidentally uninstalled it and now I don't know where or how to install it again. Can anyone tell me a website which features this browser? I really need it for school. Thanks.
ENGINEERING
HIGH SCHOOL
Please help with the three questions below. Thank you !
ENGINEERING
HIGH SCHOOL
Dry clean-up procedures are used to clean upAfats, oils, and greaseBwaste waterсbroken glassDhazardous materials
ENGINEERING
COLLEGE
What regulations is OSHA cover under what act
ENGINEERING
COLLEGE
A cylindrical bar of metal having a diameter of 19.2 mm and a length of 207 mm is deformed elastically in tension with a force of 52900 N. Given that the elastic modulus and Poisson's ratio of the metal are 61.4 GPa and 0.34, respectively, determine the following: a. The amount by which this specimen will elongate in the direction of the applied stress. b. The change in diameter of the specimen. Indicate an increase in diameter with a positive number and a decrease with a negative number.
ENGINEERING
COLLEGE
A cube with 1 m on a side is located in the positive x-y-z octant in a Cartesian coordinate system, with one of its points located at the origin. Find the total charge contained in the cube if the charge is given by p_v = x^2 ye^-z mC/m^3
ENGINEERING
COLLEGE
A circuit contains a 40 ohm resistor and a 60 ohms resistor connected in parallel. If you test this circuit with a DMM you should read a total resistance
ENGINEERING
HIGH SCHOOL
Which of the following is the scientific definition of the word acceleration as it is used in the text whendescribing the principles of roller coaster physics?O A.a decrease in speedB.the rate of change in velocityC.progress in a forward directionD.the speed of an object in a particular direction
ENGINEERING
HIGH SCHOOL
The ________ is the part of the drill press that holds and rotates the cutting tool.
ENGINEERING
COLLEGE
Technician A says that the unitized structure of a hybrid vehicle is considerably different when compared to the same conventional model.Technician B says that hybrid vehicles have 12-volt and high voltage batteries.Who is right?
ENGINEERING
COLLEGE
Determine the voltage across a 2-μF capacitor if the current through it is i(t) = 3e−6000t mA. Assume that the initial capacitor voltage is zero g
ENGINEERING
HIGH SCHOOL
______________ help protect the lower legs and feet from heat hazards like molten metal and welding sparks. A) Safety shoesB) LeggingsC) Metatarsal guardsD) Toe guards
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