A proton charge travelling perpendicular to a magnetic field experience the same force as an alpha particle charge 2e which is also travelling perpendicular to the same field find the ratio of their speeds is v proton bi vi alpha

Along, straight wire with 3.0 a current flowing through it produces magnetic field strength 1.0 t at its surface. if the wire has a radius r, where within the wire is the field strength equal to 36.0% of the field strength at the surface of the wire? assume that the current density is uniform throughout the wire

Alarge box of mass m is pulled across a horizontal frictionless surface by a horizontal rope with tension t. a small box of mass m sits on top of the large box. the coefficients of static and

Glass has a hardness that is in the middle of the hardness scale. what is the hardness of glass?