A proton and electron, each travelling with the same velocity in the +x direction enter a region of uniform magnetic field in the +y direction. If the acceleration of the electron is a in the +z direction, what is the acceleration of the proton?
A. amp/me in the +z direction
B. a in the +z direction
C. ame/mp in the +z direction
D. a in the –z direction
E. amp/me in the -z direction
F. ame/mp in the -z direction
F. ame/mp in the -z direction
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Regarding the charges of the electron, proton and neutron:
A) these objects are charged only when they reside in an ionized atom; otherwise, all three are uncharged. B) the proton has a positive charge, the electron has a much smaller negative charge, and the neutron has no charge. C) the proton has a positive charge, the neutron has a negative charge whose strength is equal to that of the proton's charge, and the electron has no charge. D) the electron has a negative charge, the proton has a positive charge, and the neutron has a charge that can be positive or negative or zero depending on the ionization of the atom in which it resides. E) the proton has a positive charge, the electron has a negative charge whose strength is equal to the strength of the proton's charge, and the neutron has no charge.
Ionic bonding is due to
A) atoms bonding to oxygen molecules. B) the transfer of electrons between atoms. C) the sharing of electrons between atoms. D) atoms bonding to hydrogen molecules.
Wave Characteristics: Which one of the following lists gives the correct order of the electromagnetic spectrum from low to high frequencies?
A. radio waves, infrared, microwaves, ultraviolet, visible, x-rays, gamma rays B. radio waves, ultraviolet, x-rays, microwaves, infrared, visible, gamma rays C. radio waves, microwaves, infrared, visible, ultraviolet, x-rays, gamma rays D. radio waves, microwaves, visible, x-rays, infrared, ultraviolet, gamma rays E. radio waves, infrared, x-rays, microwaves, ultraviolet, visible, gamma rays
Imagine that we have two identical metal spheres on insulating stands that we give the same negative charge. If we slowly bring the spheres closer and closer together, the charge per unit area ? on each sphere will at the point nearest the other sphere
A. become increasingly negative. B. become less negative. C. remain constant.