A roller coaster of mass 2000 kg is rolling down a track with an instantaneous speed 10 m/s. What is its kinetic energy in Joules?

What is the magnitude of the resultant vector round your answer to the nearest tenth

What are the factors that affect the resistance of a wire?

Alandscaper is shopping for landscaping materials. she wants to use materials through which water flows easily. which materials should she choose? check all that apply. clay gravel granite rocks with cracks loosely packed soil