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All good athletes wants to win, and all athletes who want to win eat a well balanced diet : therefore, all athletes who do not eat a well balanced diet are bad athletes. Which of the following, if true, would most weaken the assumptions of the argument above?
When two shafts of same length, one of which is hollow, transmit equal torques and have equal maximum stress, then they should have equal
Operating torques in analogue instruments are
If the resultant of two equal forces has the same magnitude as either of the forces, then the angle between the two forces is
The change in length due to a tensile or compressive force acting on a body is given by (where P = Tensile or compressive force acting on the body, $$l$$ = Original length of the body, A = Cross-sectional area of the body and E = Young's modulus for the material of the body)
If a given force (or a given system of forces) acting on a body __________ the position of the body, but keeps it in equilibrium, then its effect is to produce internal stress in the body.
Three forces acting on a rigid body are represented in magnitude, direction and line of action by the three sides of a triangle taken in order. The forces are equivalent to a couple whose moment is equal to
Three forces which act on a rigid body to keep it in equilibrium. The forces must be coplanar and
A survey was conducted among the students of Khulna University to find out how many forms of physical exercise usually swam, 25% said they usually did jogging, 20% said they played cricket, 15% said they usually played football and 20 respondents said they did not take any form of exercise. From the above findings it can be concluded that.
When a body is subjected to two equal and opposite forces, acting tangentially across the resisting section, as a result of which the body tends to shear off across the section, the stress and strain induced is