Question: Identify whether the following are SA, SB, WA, WB, AS, BS, or NS. Classification Substance Classification Substance Classification Substance NaOCl NH2OH (NH4)2SO4 HNO3 HC7H5O2 AgNO3 CaCO3

Answer to Determine wA and wB, in N/m, when the boy is standing. The wooden plank resting between the buildings deflects slightly when it supports the 54 kg boy.

Question: The two blocks AA and BB have weights WA = 71 lb and WB = 13 lb.The two blocks A and B have weights WA=71lb and WB=13lb.(Figure 1)If the kinetic coefficient of friction between the incline and block A is μk=0.2, determine the speed of A after it moves 3 ft down the plane starting from rest.

Question: wilson holds a portfolio that invests equally in three stocks (WA-WB-wc-1/3). Each stock is described in the following table: Stock Beta Standard Deviation Expected Return 0.5 1.0 2.0 7.5% 12.0% 14.0% 23% 39% 45% An analyst has used market-and firm-specific information to generate expected return estimates for each stock.

1) Wa=Wb 2) Wa = 2Wb 3) Wa = 1/2Wb 4) Wa = 1/4Wb If 2*F is applied to cart B, then wouldn't it take half the work? so Carts A and B have equal masses and travel equal distances on a straight frictionless track while a constant force (F) is applied to …

The three stone blocks have weights of WA WB 150 lb, and We 500 lb. (Figure 1) 600 lb Part A Determine the smallest horizontal force P that must be applied to block C in order to move this block. The coefficient of static friction between the blocks is p 0.3, and between the floor and each block 0.5 Express your answer with the approprlate ...

Question: The two blocks shown are originally at rest. Neglecting the masses of the pulleys determine the tension in the cable.Given: {Wa,Wb,uk}={123.30,297.65,0.45}Weight of block A=123.30lbsWeight of block B=297.65lbskinetic friction coefficient =0.45 between block A and the tableFind:Tension in cable =, IbsWritten work: Draw FBD showing the forces, and KD …

Question: Knowing that wheel A rotates with a constant angular velocity and that no slipping occurs between ring C and wheel A and wheel B, which of the following statements concerning the angular speeds of the three objects is true? 24 mm -5 mm Select the correct response: Wa=Wb The contact points between A and C have the same acceleration.

Question: Assume normal notations used in the class for two stocks A and B [WA, WB, rA, rB, σA(Standard deviation), σB, and ρAB(correlation coefficient)]Stock A has an expected return of 12% and a standard deviation of 20%. Stock B has an expected return of 15% and a standard deviation of 35%.

Problem 1 Two blocks weighing WA and WB are at rest on a conveyor that is initially at rest. The belt is suddenly started in an upward direction so that slipping occurs between the belt and the boxes Assuming the coefficient of friction between the boxes and the belt is uk, draw the FBDs and KDs for blocks A and B.