What isdm command will bring up the second BRI at 50 percent load?

How can doing work on an object increase it's kinetic energy?

I lift a book from the floor and place it on my desk.The amount of work I do on the book is the amount by whichits gravitational potential energy has increased . . .M G Hwhere 'M' = mass of the book, 'G' = acceleration of gravity, 'H' = height of the table above the floor.By the way, when I increased the energy of the book, I also increased its mass. The change in mass isdM = dE / c2