Question 3(Multiple Choice Worth 2 points) In order to be considered work, the components that must be present are
O a force and a movement in the same direction as the force
an action which causes movement and an opposite reaction
an action which causes no movement or reaction
О O
a force and a movement in the opposite direction of the force

If an inclined plane is 5 m long and 2 m high, what is its mechanical advantage? a. 2.5 b. 3 c. 7 d. 10

Order the sequence of ideas that lead to marie curies discovery of radioactive elements number the events in chronological order starting with the oldest

Determine the change in width a, height b, thickness t when a plate is subjected to the uniform distributed load and is made of material having modulus of elasticity e=230 gpa and poisson's ratio ν=1/3. given : a=400 mm and b= 300 mm also the uniformly distributed load in downward y direction of plate is 2 mn/m and in the positive x direction is 3 mn/m and t=20 mm