Identify two potential improvements to the opal extraction process and explain how
these improvements could minimize harm to the environment

Afixed electric space heater wired by a cable with an ampacity of 30 a should draw a maximum current of a. 30 a. b. 24 a. c. 15 a. d. 27 a.

For the car in the picture ,in which direction is the normal force? -into the screen -down -out of the screen -up

How to tell if two objects are in thermal equilibrium 1.the objects have the same temperature 2.the objects are the same size 3.the objects are touching each other 4.the objects temperatures are changing