Debbie plotted a graph to show how the mass of aluminium rivets affected the distance the cup moved down.

use the graph (attached) to find the mass that made the cup move down 4mm.

What is the coefficient of kinetic friction μk between the block and the tabletop?

The period of a pendulum varies directly as the square root of the length of the pendulum and inversely as the square root of the acceleration due to gravity. find the period when the length is 144 cm and the acceleration due to gravity is 980 cm per second squared, if the period is 7pi seconds when the length is 289 cm and the acceleration due to gravity is 980 cm per second squared.

How many atoms of nitrogen are in the chemical formula ni(w on