The international space station is a feat of human ingenuity and collaboration, if a little expensive. which of these countries has not sent an astronaut?

The valve seat performs two functions: it provides a seal for the valve in the combustion chamber, and it provides a cool surface to carry heat away from the valve. most valves use a seating angle.

Astudent is revising the sentence below: i know brendan was upset, but i feel he overreacted. you would have thought he'd just lost his best friend, the way he would bemoan his fate. based on the context of this sentence, which is the best synonym for bemoan? a. complain: express dissatisfaction or annoyance b. grieve: cause distress to someone c. nag: annoy with persistent fault-finding d. provoke: stimulate or incite

What is the correct way to represent 5600 l using scientific notation? a)-5.6 x 1034 b)-5.6 x 10-3 l c)5.6 x 10-3l d)5.6 x 103 l