A biker is traveling at a speed of 56 km/hr. He approaches a stop sign and slows down to a complete stop in 6 seconds. What is the acceleration of the biker?

Smallest intensity of a stimulus that you can detect 50 percent of the time is

A10-kg piece of aluminum sits at the bottom of a lake, right next to a 10-kg piece of lead, which is much denser than aluminum. which one has the greater buoyant force on it? explain. b - the aluminum a) both have the same buoyant force. b) the aluminum c) the lead d) it cannot be determined without knowing their volumes.

Which statement correctly describes the interaction between magnetic poles? north and south poles attract each other. north and south poles repel each other. two north poles will attract each other. two south poles will attract each other.