The cylinder cd of the assembly is heated from t1 = 30°c to t2 = 180°c using electrical resistance. also, the two end rods ab and ef are heated from t1 = 30°c to t2 = 50°c. at the lower temperature t1 the gap between c and the rigid bar is 0.7 mm. determine the force in rods ab and ef caused by the increase in temperature. rods ab and ef are made of steel, and each has a cross-sectional area of 125 mm^2. cd is made of aluminum and has a crosssectional area of 375 mm^2. est = 200 gpa, eal = 70 gpa, ast = 12(10^-6)1/°c, and aal = 23(10^-6)1/°c.

hello, i am papaguy.

i have found an answer to your question but use it as information.

information: because weak acids/bases have low concentration of hydrogen ions, the addition of water has a large impact on the ph. 2. a difference in 1 unit is a 10x difference in concentration for example; a liquid with ph of 3 is 10x more acidic than a liquid with a ph of 4. therefore, a liquid with a ph of 3 is stronger.

best of luck!

do you have a formula possibly

the answer is the first electromagnet (a). this is because it has more coils around the ferromagnetic material. increasing the number of coils increases the surface area in which the metal interacts with the current in the coil. this enables more atoms in the metal to become aligned hence becoming more magnetized.