A scientist wants to use an electron microscope to observe details on the order of 0.70 nm. Through what potential difference must the electrons be accelerated from rest so that they have a de Broglie wavelength of this magnitude

current and voltage can both be different in different parts of a circuit so it matters where you place the ammeter and voltmete

a.metals can become magnetic if they have many spinning electrons that create magnetic fields.d.only some metals are attracted by magnets; these metals are called ferromagnetic.

d.wrapping an insulated wire around a metal with ferromagnetic properties and applying an electric current.

not moving. pos accel,