Certain nuclear radiation that is passed through the electric field (above) is deflected towards the red plate.

in what way is the nucleus changed by this type of decay?
a) a proton is converted to a neutron.
b) a neutron is converted to a proton.
c) a positron is converted to an alpha particle.
d) there is no change to the nucleus because the mass remains remain the same.

Newtons view of arrangement of the universe

Materials will have different energies associated with the electrons inside them. this is related to how strongly bound they are by their work function. if we sandwich a material with a very low energy between two materials with a high energy, we create a trap for an electron. if this trap is very narrow in one direction in comparison to the others, this is approximately a 1-dimensional box that confines the electron. what is the lowest energy of an electron in the box if the thinnest direction across the materials is 4.81 nm?

Ablue car pulls away from a red stop-light just after it has turned green with a constant acceleration of 0.5 m/s 2 . a green car arrives at the position of the stop-light 6.5 s after the light had turned green. if t = 0 when the light turns green, at what time does the green car catch the blue car if the green car maintains the slowest constant speed necessary to catch up to the blue car? answer in units of s.