The diagram shows a lever. A weight is near the end of the lever. A force, F, pushes up on the pad and balances the lever.
(a)
The 50 N weight is pulling the lever anticlockwise around the pivot.
Calculate the moment (turning effect) of the 50 N weight about the pivot.
Give the units

An object starts from rest at point f and speeds up continuously as it moves around an oval. a. choose a point about 1/8 th of the way around the oval from point f, and label it point g. draw a vector to represent the velocity of the object at point g. b. determine the change in velocity vector   between points f and g.

Which of the following bonds would be most polar? a. c-i b. c-br c. c-cl d. c-f e. c-o

Which best describes the first law of thermodynamics as compared to the second law of thermodynamics? a. the first law describes how thermal energy is conserved but not the direction it moves. b. the first law describes the direction thermal energy moves but not how it is conserved. c. the first law describes how thermal energy can be created but not how it can be destroyed. d. the first law describes how thermal energy can be destroyed but not how it can be created.