A 1000-kg space probe is motionless in space. To start moving, its main engine is fired for 5 s during which time it ejects exhaust gases at 5000 m/s. At the end of this process it is moving at 20 m/s. The approximate mass of the ejected gas is: 
Definitions:
Visual Bulletin Boards
Physical or digital boards used to display information or messages visually, often incorporating images, notices, and announcements.
An internet service that allows users to pin and categorize images and ideas on virtual boards for personal or public viewing.
Live Video Streaming
Real-time broadcasting of video content over the internet, allowing viewers to watch events unfold live.
A social networking platform designed for the business community to connect, share insights, and discover professional opportunities.
Q6: The graphs below show the magnitude of
Q7: Under international accounting standards,the standard for accounting
Q9: A watt is:<br>A) kg . m/s<sup>3</sup><br>B) kg
Q21: A car moving with an initial velocity
Q29: Current generally accepted accounting principles require that
Q43: A stream of gas consists of n
Q62: Let U be the potential energy (with
Q64: Water (density = 1.0 * 10<sup>3</sup> kg/m<sup>3</sup>)
Q69: At time t = 0 a car
Q75: One revolution is the same as:<br>A)