Si levantas una caja desde el suelo hasta el nivel de tu cintura y la mantienes a esa altura mientras caminas, ¿en que momento realizaste trabajo?

What is the polyatamic ion of borate

Stage in which a typical star has completely stopped fusion

Acm ruler with main graduations from 1 to 10 from left to right there are 10 secondary graduations between each of the main graduations there is a line that begins. at the left end of the ruler 10 secondary graduations to the left of the “1 main graduation the right end of the line ends on the eighth secondary graduation to the right of 3 how long is the line