1500m race runner starts the race with a velocity X and after 10s she covered a distance of 120m. She then triple her velocity for the next 5s. She again reduced her velocity to Y which took her 3s to complete the race. calculate :i)the value of X and Y
ii)The average velocity and total time

Most energy in an ecosystem comes originally from_

Blank liquids and gases exert a buoyant force on objects placed in them

The arrival of in the early days of europa’s existence could have formed its ocean. it is likely that the water experienced similar to earth. it is also possible that this water is retained beneath europa’s surface and in its atmosphere due to europa’s . 1.) a. precipitation b. water vapor c. icy debris 2.) a. gravitational compression b. biochemical cycling c. radiogenic heating 3.) a, gravity b. magnetic field c. heat energy for plato