Write a formular to show force experienced by charge in magnetic field.​

Which branches of natural science include the study of an organism that lived 10 million years ago

Adolphin emits ultrasound at 100khz and uses the timing of reflections to determine the position of objects in the water. part a what is the wavelength of this ultrasound? assume that temperature of water is 20 degrees c. answer in cm

The direction of the current in an alternating current circuit remains constant. is direct. changes repeatedly. changes randomly.