Una pesa de 18 kg se levanta hasta una altura de 12 m y después se suelta en caída libre. ¿Cuáles son
la energía potencial, la energía cinética y la energía
total en: (a) el punto más alto. (b) 3 m sobre el nivel
del suelo

Along the line connecting the two charges, at what distance from the charge q1 is the total electric field from the two charges zero? express your answer in terms of some or all of the variables s, q1, q2 and k =14ï€ïµ0. if your answer is difficult to enter, consider simplifying it, as it can be made relatively simple with some work.

Frequency of electromagnetic waves that a radio station is assigned. what do you call this type of wave?

Does the asteroid belt revolve around the sun?