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why does radioactive decay occur?
a. nuclear forces disintegrate protons.
b. the electric force causes electrons to be released.
c. the electric force and nuclear forces are in opposition to each other.

If you touch a hot light bulb and get burned, that is an example of a. radiation b. convection c. conduction

Un jugador de beisbol batea un foul recto en el aire.la pelota deja el bate con una rapidez de 120 km/h. en ausencia de resistencia del aire. ? cual sera la rapidez de la pelota cuando la atrape el catcher

Sawyer is studying diffraction. he draws a diagram of a plane wave to show how light waves travel. which best describes sawyer’s error? the wave fronts should be perpendicular to the direction in which the waves move. the arrow showing the direction of movement of the waves should be pointing to the left. the arrow showing the direction of movement of the waves should be pointing downward. the wave fronts should be both parallel and perpendicular to the direction in which the waves move.