Which of the following illustrates an example of when work being done is not equal to zero? O Holding a gallon of milk at the grocery checkout line
O Standing at the top of the staircase
lifting a box from the ground
Holding a set of weights above your head

Aplane takes off from an airport and flies to town a, located d1 = 215 km from the airport in the direction 20.0° north of east. the plane then flies to town b, located d2 = 230 km at 30.0° west of north from town a. use graphical methods to determine the distance and direction from town b to the airport. (enter the distance in km and the direction in degrees south of west.)

Crowbar of 5 metre is used to lift an object of 800 metre if the effort arm is 200cm calculate the force applied

Iwill give brainliest if you answer right : )