El calor especifico del agua es de 4184 J/kg ·K ¿en cuantos joules cambia la energia interna de 50 g de agua cuando se calienta desde 21ºC hasta 37ºC? Suponga que la dilatacion del agua es despreciable el calor añadido para aumentar la temperatura del agua es AQ= cm Ar = (4184J/kg·K) (0.050 kg)(16ºC)=3.4x10´3J

Suppose you are going to graph the data in the table. minutes temperature (°c) 0 -2 1 1 2 3 3 4 4 5 5 -4 6 2 7 -3 what data should be represented on each axis, and what should the axis increments be? x-axis: minutes in increments of 1; y-axis: temperature in increments of 5 x-axis: temperature in increments of 5; y-axis: minutes in increments of 1 x-axis: minutes in increments of 1; y-axis: temperature in increments of 1 x-axis: temperature in increments of 1; y-axis: minutes in increments of 5

An optical inspection system is used to distinguish among different part types. the probability of a correct classification of any part is 0.92. suppose that three parts are inspected and that the classifications are independent. let the random variable x denote the number of parts that are correctly classified. determine the probability mass function of x. round your answers to four decimal places (e. g. 98.7654). x f(x) 0 1 2 3

If np3 /nc2 = 6, find the value of n