En un recipiente con agua abierto a la atmósfera en su parte superior tiene un pequeño orificio en la parte interior a 6m por debajo de la superficie del liquido A)con que velocidad sale el agua por el orificio? B)si el diametro del orificio es de 1,9cm ¿cual es el el caudal del agua que sale del recipiente ?

Aparticle's position is given by x = 3.00 - 9.00t + 3t2, in which x is in meters and t is in seconds. (a) what is its velocity at t = 1 s? (b) is it moving in the positive or negative direction of x just then? (c) what is its speed just then? (d) is the speed increasing or decreasing just then? (try answering the next two questions without further calculation.) (e) is there ever an instant when the velocity is zero? if so, give the time t; if not, answer "0". (f) is there a time after t = 3 s when the particle is moving in the negative direction of x? if so, give the time t; if not, answer "0".

Which statement best explains why the overall charge on an atom is zero?

What is part of a line has one endpoint and continues in one direction?