50 metros livre de natação é um esporte de marca, precisão ou de invasão? ME AJUD, É PROVA E É PRA HJ

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

What is part of a line has one endpoint and continues in one direction?

Two point charges, separated by 1.5cm, have charge values of +2.0 and-4.0 uc, respectively. what is the value of the mutual force between them