Which statement is NOT part of the cell theory? A. All cells have a nucleus. B. Cells come only from other living cells. C. Every living thing is made of one or more cells. D. Cells carry out the functions needed to support life.

The rigid beam is supported by the three suspender bars. bars ab and ef are made of aluminum and bar cd is made of steel. if each bar has a cross-sectional area of 450 mm2, determine the maximum value of p if the allowable stress is (σallow)st = 200 mpa for the steel and ( σallow)al = 150 mpa for the aluminum. est = 200 gpa and eal = 70 gpa.

Three charge are arranged as shown in the diagram. the magnitude of the net electrical force acting on the +6 uc charge, rounded to the tenths place, is .

Which of the following bonds would be most polar? a. c-i b. c-br c. c-cl d. c-f e. c-o