The plain flight covers 400 miles in the first hour. as you approach the landing site, it takes you an hour to cover the last 200 miles. this a example of positive acceleration. velocity. instantaneous speed. negative acceleration.

Eddy whose mass is 55kg climbs up the 1.50 meter high stairs in 2s.calculate eddy’s power rating

What is a neurotransmitter involved in mood reward, addiction, and motor behaviors?

Global warming will produce rising sea levels partly due to melting ice caps but also due to the expansion of water as average ocean temperatures rise. to get some idea of the size of this effect, calculate the change in length of a column of water 1.00 km high for a temperature increase of 1.00ºc. note that this calculation is only approximate because ocean warming is not uniform with depth. (answer in ×10^{-3} −3 m)