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Questions: a. Two A441 steel plates 3f in wide are to carry a load of 25 000 lb. They are to be top and bottom end fillet-welded with Class E 70 series electrodes. What is the required thickness of the plate?
b. Assuming a complete-penetration butt weld, what would be the required thickness?
c. Assuming 1-in A307 steel bolts are to be used, find how many would be required in shear.
Suppose one gallon of gasoline produces 1.1 108 J of energy, and this energy is sufficient to operate a car for 43 miles. how many miles would the car go on a single tablet
A tight uniform string with a length of 1.80 m is tied down at both ends and placed under a tension of 100 N. What is the mass of the string
Starting from rest, a crate of mass is pushed up a frictionless slope of angle by a horizontal force of magnitude. What is the speed of the crate at the top of the slope
An insulated sphere has a uniform volume charge density,ρ , and R. What is the magnitude of the electric field in all space ?(That is, for any distance r from the center of the sphere, what isthe magnitude of the eletric field? Assume the charge i..
At the moment of release, two planes have the same speed of 152 m/s, and each is carrying a tank at the same height of 2.05 km above the ground. find direction of the velocity with which the fuel tank hits the ground if it is from plane A
The left side of the heart creates a pressure of 120 mm Hg by exerting a force directly on the blood over an effective area of. What force does it exert to accomplish this?
A rotating cylinder about 16- {rm km} long and 6.8 -km in diameter is designed to be used as a space colony. With what angular speed must it rotate so that the residents on it would experience the similar acceleration because of gravity as on Eart..
In a thundercloud there may be electric charges of +37.0 C near the top of the cloud and -37.0 C near the bottom of the cloud. What is the electric force on the top charge
The position of a 250g object is given (in meters) by x=5.0t^3 -8.0t^2 -44t , where t is in seconds. Determine the net rate of work done on this object
The present period is 2.36 x 106 s. Assume that the orbit of the Moon is circular. Calculate the ratio of the speed of the Moon in its ancient orbit to the speed that it has today.
Consider an electron in a hydrogen atom, which is 0.050 nm from the proton in the nucleus, What electric field does the electron experience
The operator of a linear accelerator tells a tour group that it is used to give protons energy of 450MeV. What is the value for the proton's rest energy
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