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a convex lens with the focal length of 85cm creates an image with magnification factornbspm -4 then find the distance
a no 312 radial-contact ball bearing is loaded uniformly without shock as follows 55 percent of the time 7 kn and 1800
a no 207 radial-contact ball bearing supports a shaft that rotates 1800 rpm a radial load varies in such a way that 60
a no 204 radial-contact ball bearing carries a combined load of 200 lb radially and 150 lb axially at 1200 rpm the
figure which is not drawn to scale shows a four-strand roller chain idler sprocket that rotates on a stationary shaft
a journal bearing is to be designed for a gear reducer shaft that rotates 1200 rpm and applies a 445-kn load to the
a cylindrical ring has an outer diameter d an inner diameter d and a width w a solid cylindrical disk of diameter d
for a critical three-dimensional state of stress where sx 45000 sy 25000 sz -50000 txy 4000 tyz 2000 and tzx
a stainless steel member has a three-dimensional state of stress at a critical location where sx 50000 sy -10000 sz
figure shows a hand crank with static vertical load applied to the handlea copy the drawing and mark on it the
we wish to analyze the stresses in a bicycle crankshaft this is the horizontal shaft sup- ported in the frame by two
figure shows a plastic beam having a box section where the top plate is cemented in place as indicated all dimensions
figure shows a portion of a c-clamp what force f can be exerted by the screw if the maximum tensile stress in the clamp
how would you expect the circumference of a tree trunk to vary with height above the ground how would the circumference
a straight bar of solid rectangular cross section and one of solid round cross section are subjected to tensile bending
compare the torque-transmitting strength of a solid round shaft with that of a solid square shaft of the same size
the stress-strain curve for certain materials can be drawn using the ramberg- osgood formula which requires the
a lug of width b and thickness h is used to carry a load p using a pin passing through a hole of diameter d as shown in
for the problems below read appendix f and then download and use mil-hdbk-5j to com- plete references to pages or
select a nylon polyamide at wwwplasticsdupontcom with 35 glass reinforcement that combines good surface appearance
a full-page open letter with more than 700 signatures was recently released in a uni- versity campus newspaper the
a jump rope is made from two hollow hard plastic handles that are attached to each end of a highly elastic cord two
select a steel from appendix c-4a that has properties listed for as-rolled normalized and annealed conditions estimate
a steel alloy su 150 ksi sy 100 ksi sn 70 ksi is used to make a five-leaf each leaf is 01 in 18 in semielliptic
figure shows a wheelchair brake in its retracted position with a tension spring exerting a force of 4 n which holds the