Awanita is placing items on a shelf that is 200 cm above the ground. she exerts a force of 20 n to lift a box from the floor to the shelf. she does this in 5 s. what is awanita’s power output? (power: p = w/t)

The slope of a velocity time graph over any interval of time gives the during that interval

Awheel of mass 48 kg is lifted to a height of 0.8 m. how much gravitational potential energy is added to the wheel? acceleration due to gravity is g = 9.8 m/s2. a. 30.4 j b. 3.1 j c. 297.9 j d. 11,321 j

Acharge q experiences no net force at a particular point in space. which of the following situations described below must always be true? -there are no other charges nearby. -if there are other charges nearby, they must all have the same sign as q. -if there are other charges nearby, they must all have the opposite sign of q. -if there are other charges nearby, the total positive charge must equal the total negative charge. -none of the above