What is the kinetic energy of a 250 kg object that is moving with a speed of 20 m/s? if the velocity of an object is doubled , what will be change in its kinetic energy?.

The graph shows the populations of two species over time. which type of symbiotic relationship does the graph represent? a. commensal b. mutualistic c. parasitic d. parent-offspring e. predator-prey

How are students who take the writing portion of accuplacer graded?

Balanced rock sits on a thin spike of rock in a canyon what forces keep the rock balanced on its tiny pedestal