You see a lightning bolt in the sky. you hear a clap of thunder 3 seconds latter. the speed of 330 m/s. how far away was the lightning?

All the simple machines make work easier to do by changing the or of a force. a. size; type b. work; type c. size; direction d. type; direction

Need only answer if you think you know it

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