In an electrical circuit, which of the following controls whether or not electrons flow through the circuit?

a. a switch
b. a battery
c. a resistor
d. a light bulb

Which is the best predictor of the radioactive nature of an isotope? o the proton-to-electron ratio the neutron-to-proton ratio o the neutron-to-electron ratio the electron-to-proton ratio

Física: un futbolista patea hacia el arco con una velocidad de 15m/ah, calcular: a)el alcance para un ángulo de tiro de 25? , b) el tiempo que el balón permanece en el aire.

Blank liquids and gases exert a buoyant force on objects placed in them