Its explanation requires controversial assumptions about new physics: either a very small but non-zero cosmological constant, an exotic form of matter ... in the system and then we solve Newton's ...

This resource revises linear functions, graphs and equations and within linear functions ... What does it mean for a graph to have a constant rate of change, and how is this used to solve real-world ...

The inherent differences between the Poisson and the modified Helmholtz equation are in their respective radial solutions. These are polynomial functions, for the Poisson equation, and modified ...