If an object has Pi (initial momentum) of 20 kgm/s ends with a Pf (final momentum) of 40 kgm/s. How long would a 5N force need to act on it? *

True or false: the revolution of the earth creates day and night as it rotates around the sun

Although longitudinal waves can travel through all media types what is the disadvantage of this type of wave transmission? a) he efficiency of he wave transmission is greatly diminished as the media becomes less dense b) the oscillation of one set of particles has a huge impact on neighboring particles c) particles become too close together as they bump into each other making it more likely to hit other particles down the line

What is the power rating of the lightbulb if 3.0 a flow through it when connected to a 15 v battery