Why are the units: paperclips, pencils, and tongue depressors not used by carpenters when they are building a house

In which of the following cases is work being done on an object? question 2 options: pushing against a locked door carrying a box down a corridor pulling a trailer up a hill suspending a heavy weight with a strong

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

2) a cubical block of stone is lowered at a steady rate into the ocean by a crane, always keeping the top and bottom faces horizontal. which one of the following graphs best describes the buoyant force b on this block as a function of time t if the block just enters the water at time t = 0 s?