A helicopter is 8.50 m above the ground and climbing at 2.5m/s . It drops a package from rest ( relative to the helicopter). At the moment that the package is released, what is its velocity relative to the ground?

Which sound characteristic is not affected by the relative motion of an object

Write a full page that sumerizes thermodynamics it’s from the website visionlearnig

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)