Se observa la posición de un objeto en diferentes instantes y se obtiene los siguientes datos:
T(seg) 1,2,3,4,5,7,8,9,10,11,12,13
D(m)0,6,12,18,24,21,18,27,36,45,45, 45
A)realizar la gráfica distancia. tiempo
B) calcular la pendiente de cada una de las rectas
C) distancia recorrida entre 6seg y8seg
D) distancia total recorrida
E) realiza la gráfica velocidad. Tiempo

How is sound energy produced a. vibrating objects b. objects being heated c. temperature differences d. stationary objects

As you are trying to move a heavy box of mass m, you realize that it is too heavy for you to lift by yourself. there is no one around to , so you attach an ideal pulley to the box and a massless rope to the ceiling, which you wrap around the pulley. you pull up on the rope to lift the box. use g for the magnitude of the acceleration due to gravity and neglect friction forces. once you have pulled hard enough to start the box moving upward, what is the magnitude f of the upward force you must apply to the rope to start raising the box with constant velocity? express the magnitude of the force in terms of m, the mass of the box.

Which of the following changes will increase the capacitance of a parallel-plate capacitor? (there could be more than one correct choice.) a) increase the charge on the plates b) decrease the poten5al between the plates c) increase the potential between the plates d) introduce a dielectric material between the plates e) decrease the separation between the plates