What is the mass of the counterweight that must be used? the pulley is of negligible mass and is frictionless. the acceleration of gravity is 9.81 m/s 2 . answer in units of kg. 009 (part 2 of 2)

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

** urgent** the voltage across the primary winding is 350,000 v, and the voltage across the secondary winding is 17,500 v. if the secondary winding has 600 coils, how many coils are in the primary winding? a- 30 coilsb- 583 coilsc- 12,000 coilsd- 332,500 coils

How does an observation about an object differ from an inference about that object