How do you calculate the over turning moment of a cube that is 12inx12inx12in?

Q3 Consider a silicon pn junction at T = 300 K with acceptor doping concentrations of 1016 cm-3 and donor doping concentrations of 1015 cm 3. Calculate the width of the space charge region in the pn junction when a reverse biased voltage of 5 V is applied. Note/ n; = 1.5 x 1010 cm-3 Eg = 1.035 x 10-12F/cm Your answer

Sketch an FCC unit cell. Indicate the positions and write down the coordinates of all of the tetrahedral and octahedral indices in this structure

The spool shown in (Figure 1) has a mass of 100 kg and radius of gyration about its mass center of kc = 0.3 m. The force of F = 170 N is applied to the cable. Figure 0.5 m 0.25 m F 1 of 1 > Express your answer to three significant figures. H=.1732 IVE ΑΣΦ. 41 Submit Previous Answers Request Answer Part B X Incorrect; Try Again; 4 attempts remaining α = vec What is the angular acceleration of the spool? Express your answer in radians per second squared to three significant figures. Submit IVE ΑΣΦΑΛΗ Avec Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining ? www. ? rad/s²

The energy spacing between consecutive rotational energy levels is generally less than that between consecutive translational energy levels. True False

In this problem you will model the mixing energy of a mixture in a relatively simple way, in order to relate the existence of a solubility gap to molecular behavior. Consider a mixture of A and B molecules that is ideal in every way but one: The potential energy due to the interaction of neighboring molecules depends upon whether the molecules are like or unlike. Let n be the average number of nearest neighbors of any given molecule (perhaps 6 or 8 or 10). Let  μ0be the average potential energy associated with the interaction between neighboring molecules that are the same (A-A or B-B), and let  μAB be the potential energy associated with the interaction of a neighboring unlike pair (A-B). There are no interactions beyond the range of the nearest neighbors; the values of  μ0 and  μAB are independent of the amounts of A and B; and the entropy of mixing is the same as for an ideal solution. (a) Show that when the system is unmixed, the total potential energy due to all the…

• Problem 3.22 The potential energy between the atoms of an hydrogen molecule can be modelled by means of the Morse potential -2(r – ra) (r V (r) = V exp 2 еxp where Vo = 7 × 10 12 erg, ) = 8 x 10-º cm and a = 5 x 10-º em.

please give solution and answer

Problems 1. Tetrahedral angles. The angles between the tetrahedral bonds of diamond are the same as the angles between the body diagonals of a cube, as in Fig. 10. Use elemen- tary vector analysis to find the value of the angle.

Useful Constants: k = 9.00 × 10º Nm² C2 8.85 x 10-12 C² Nm2 %3D e = 1.6 x 10-19 C me = 9.11 x 10 mp = 1.67 × 10-27kg %3D -27 mn = 1.68 x 10 %3D