Sound waves travel faster through air than through solids. trur or false

Why don't you see your reflection in water with waves or repples

Acoil suspended freely, points in some direction when no current is passed through it . can you tell what will happen when a current is passed though it?

The magnitude of the magnetic field at a certain distance from a long, straight conductor is represented by b. what is the magnitude of the magnetic field at twice the distance from the conductor? a. at twice the distance, the magnitude of the field is 4b.b. at twice the distance, the magnitude of the field is 2b.c. at twice the distance, the magnitude of the field is b/2.d. at twice the distance, the magnitude of the field is b/4.e. at twice the distance, the magnitude of the field remains equal to b.