What is the magnitude of a point charge that would create an electric field of 3.90 N/C at points 4.80 m away?

Astone dropped into a well is heard to strike the water after 8seconds. find the depth of the well if the velocity of sound is 350m/s

Ryan is examining the energy of the particles in a bar of gold. what is ryan most likely studying?

Both speed and velocity measure how fast something is moving. however, since speed is not a it does not require a(n question 6 options: a) quantity , unit b) magnitude, unit c) scalar, direction d) vector, direction