If the velocity of an object changes from 15 m/s during a time interval of 4s what is the acceleration of the object

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.

What are the applications of electromagnetic waves

Aman throws a football straight into the air. as it rises, it slows down. which type of energy is the football gaining?