A plane element in a body is subjected to a tensile stress of 100 MPa accompanied by a shear stress of 25 MPa. Find
(i) the normal and shear stress on a plane inclined at an angle of 20° with the tensile stress
3. i) ii) iii)
(ii) the maximum shear stress on the plane.

(b) suppose that consolidated power decides to use a level of significance of α = .05, and suppose a random sample of 100 temperature readings is obtained. if the sample mean of the 100 temperature readings is x⎯⎯ = 60.990, test h0 versus ha and determine whether the power plant should be shut down and the cooling system repaired. perform the hypothesis test by using a critical value and a p-value. assume σ = 5. (round your z to 2 decimal places and p-value to 4 decimal places.)

Which of the following statements would be sufficient to prove that parallelograms pqrs is a rectangle ?

In a sale there is 25% of all prices a chair costs £45 in sale how much was it before the sale