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17 the self-reported heights of 105 students in a biostatistics class were used to construct the histogram given belowa
the decision was made by nasa to abandon rocket-launched payloads into orbit around the earth we must now rely on the
a quartzitic sandstone has a bulk modulus of 471 gpa and a shear modulus of 428 gpa find the values of the other
give four reasons for performing surface treatmentsan arc welding machine uses a current of 1000a and has a resistance
define the following terms i closed die forging ii roll forgingdescribe two purposes of lubrication in
describe the following methods of fabrication of plastics with the aid of sketchesi blow moldingii transfer moldingiii
describe the squeezing method of making the mold illustrate the four types of squeeze heads that are
describe four methods of glass forming describe four methods of glass
explain how the centre of pressure moves forward when an aircraft flies from transonic to supersonic speed including
the wheel has mass m radius r and moment of inertia ig mr22 the wheel is initially at rest and it is subjected to a
the disk has mass m radius r and moment of inertia ig mr22 the spring constant is k mgr the disc is released from
a force 30n with a radium arm is 25m is applied to a flywheel to turn it through 75 revolutions at constant speed what
1 does the amount of mass entering a control volume have to be equal to the amount of mass leaving during an
a double strap butt joint had to carry a load of 17kn the ultimate shear strength of the rivets used is 260mpa and a
if there are two balls of equal mass and of perfectly elastic material are lying on the floor one of the ball with
if the output of a gas turbine is 300 kw and its efficiency is 20 percent what will be the heat
explain the importance of using up-to-date and accurate reference materials when you develop design proposals
the assembly shown consists of an aluminum shell ea 70 gpa alphaa 236 x 10-6ordmc fully bonded to a steel core es
a v-belt makes contact with a 350mm diameter pulley over an angle of 160degrees the coefficient of friction is 03 and
a uniform cantilever is 4 m long and carries a concentrated load of 40 kn at a point 3 m from the support determine the
a reinforced concrete beam is 240 mm wide and 450 mm deep to the centre of the reinforcing steel rods the rods are of
a a rectangular-section steel beam 50 mm wide by 20 mm deep is used as a simply supported beam over a span of 2 m with
at a given section a shaft is subjected to a bending stress of 20 mnm2 and a shear stress of 40 mnm2 determinea the
a material is subjected to two mutually perpendicular direct stresses of 80 mnmz tensile and 50 mnmz compressive
a hollow circular steel strut with its ends fixed in position has a length of 2 m an outside diameter of 100 mm and an