a body initially at rest is accelerated at the rate of 0.2ms-2 for 5seconds under a constant force of 50N . find the work done on the body

a charge 3q is at the origin, and a charge −2q is on the positive x axis at x=a. part a where on the x-axis would you place a third charge so it would experience no net electric force? enter an expression for the exact answer, which will involve a square-root sign. (do not enter an approximate decimal answer.)

grav potential energy

when heated, the valance electrons increased their speed and transferred the heat from electron to electron.   i just took the test.

the skeletons of most mammals reach a certain size and then stop growing. however, many animals, including some mammals, keep growing throughout their lives. kangaroos, for example, just keep growing and growing until they die. also, the longer an animal lives the greater the chance it might catch some deadly disease.