In a scientific experiment the factor that may change in the response to the manipulated variable is called the

Ais a machine that makes work easier when a single force is applied. a simple machine b compound machine c endangered machine d complex machine

The gun from the crime scene shows tool marks where the serial numbers are ground off. there are also tool marks on the bullets left behind. what information can the tool marks on the bullets and gun provide about the crime? what type of evidence does this information provide, individual or class?

If you let go of the notebook after lifting it, will it move? how?