During which type of change can an atom of one element transform into an atom of a different element? a. phase b. nuclear c. chemical d. physical

The boy of mass 30 kg is at r1= 2 meters from the fulcrum. of the girl is 45 kg, at what r2 must she sit so that they are balanced ?

The frequencies refer to the sample data collected from a population of interest when performing a hypothesis test comparing two or more population proportions.

If a simple machine reduces the strength of a force, what must be increased?