However, when is the best time to fill a balloon? Helium has a tendency to escape from any opening in the balloon and will eventually deflate. This means that you should never wait until your event starts to inflate your balloons.

An object moves from position +34m to the position -15m in 15 seconds. what is the total displacement? what is the total velocity?

Two objects of different mass start from rest, are pulled by the same magnitude net force, and are moved through the same distance. the work done on object 1 is 900 j. after the force has pulled each object, object 1 moves twice as fast as object 2. how much work is done on object 2?

Nitrogen (n2) undergoes an internally reversible process from 6 bar, 247°c during which pν1.2 = constant. the initial volume is 0.1 m3 and the work for the process is 121.14 kj. assuming ideal gas behavior, and neglecting kinetic and potential energy effects, determine heat transfer, in kj, and the entropy change, in kj/s. show the process on a t-s diagram.