If two tiny identical spheres attract each other with a force of 4.0 nN when they are 21 cm apart, what is the mass of each sphere

How can one distinguish breccia from conglomerate? a. breccia contains angular clasts and conglomerate contains rounded clasts. b. breccia contains rounded clasts and conglomerate contains angular clasts. c. different minerals cement breccia than cement conglomerate. d. breccia contains sand and conglomerate contains silt.

Complete the sentence to describe the law of conservation of energy. the law of conservation of energy states that energy cannot be created or , but it can be

Crowbar of 5 metre is used to lift an object of 800 metre if the effort arm is 200cm calculate the force applied