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studies have concluded that a college degree is a very good investment suppose that a college graduate earns about 75
henry fords model t was originally designed and built to run on ethanol today ethanol 190-proof alcohol can be produced
tyler just wrecked his new nissan and the acci-dent was his fault the owner of the other vehicle got two estimates for
a typical discounted price of a aaa battery is 075 it is designed to provide 15 volts and 10 amps for about an hour now
the decision was made by nasa to abandon rocket-launched payloads into orbit around the earth we must now rely on the
a james dyson is the designer of one of the best selling types of vacuum cleaner find out how the design was
a simple pendulum is made from a light cord 900 mm long and a concentrated mass of 225 kg what will be the periodic
an elastic spring of stiff ness 04 kn m 1 is suspended vertically with a load attached to its lower end when displaced
a mass of 6 kg is suspended from a helical spring and produces a static defl ection of 6 mm the load on the spring is
a mass of 25 kg is suspended from an elastic coiled spring which undergoes a 50 mm increase in length the mass is then
a body of mass 50 kg describes shm along a straight line the time for one complete oscillation is 10 s and the
the length of the path of a body which moves with shm is 1 m and the frequency of the oscillations is 4 hz determine a
a body moves with shm in a straight line and has velocities of 24 m s 1 and 12 m s 1 when it is 250 mm and 400 mm
a machine component of mass 2 kg moves with shm of amplitude 250 mm and periodic time 3 s determine a the maximum
the four-bar linkage shown in figure 253 the crank oa the connecting rod ab and the rocker bc are 20 mm 120 mm and 60
the crank oa of the engine mechanism shown in figure rotates clockwise at a speed of 3000 rpm the length of the crank
in the slider crank mechanism shown in figure 251 the crank oa is 150 mm long and the connecting rod ab is 300 mm long
two straight railway lines running north south and east-west intersect a train running south approaches the crossing at
at an instant in time two ships a and b are separated by a distance of 15 km with ship b southeast of a ship a is
a ship a is travelling at a speed of 30 km h 1 in a direction 60 deg south of east a second ship b is sighted which is
a an aircraft that can travel at 300 km h 1 attempts to fl y due south in a westerly cross-wind of 50 km h 1
a the design specification for a transmission shaft states that the angle of twist must be no more than 1deg over a
a propeller shaft of outer diameter 75 mm and inner diameter 60 mm is made from steel whose shear modulus is 85 gpa and
a solid shaft transmits 16 mw at a speed of 75 rpm the shaft length is 6 m and its diameter is 300 mm the shear modulus
the drive shaft to a boat s propeller is 50 mm in diameter if a 25 mm diameter hole is bored along its length