1 El aumento de volumen que experimenta un cuerpo cuando recibe energía en forma de calor se denomina: 2 Equilibrio térmico es …
3 Según el texto se puede afirmar:
4 Un estudiante midió la temperatura de un recipiente con agua hirviendo y dijo que el termómetro marco 50 °C. Esta afirmación es:
5 Un estudiante afirma que estuvo de vacaciones en la ciudad de Cartagena y todo estaba cubierto por la nieve, esta afirmación es:
6 El instrumento para medir la temperatura es:
7 El calor muestra
8 La diferencia entre las escalas Celsius y Kelvin es:
9 La temperatura de un cuerpo
10 Cuáles son las escalas más usadas para medir la temperatura

Is a  vector quantity  that refers to "the rate at which an object changes its position." imagine a person moving rapidly - one step forward and one step back - always returning to the original starting position. while this might result in a frenzy of activity, it would result in a zero velocity. because the person always returns to the original position, the motion would never result in a change in position. since velocity is defined as the rate at which the position changes, this motion results in zero velocity. if a person in motion wishes to maximize their velocity, then that person must make every effort to maximize the amount that they are displaced from their original position. every step must go into moving that person further from where he or she started. for certain, the person should never change directions and begin to return to the starting position.

Sound energy is produced when an object vibrates. examples are 1- a balloon popping2-a whistle3- a waterfall

Not what goes around on earth but the universe too.

Initial velocity,  u = 4.9 m/sfinal velocity = v m/sinitial height,  h₁ =  245 m    final height, h₂ = 0a = -9.8  m/s²time taken = t secondss = ut + 0.5at²⇒  (h₂-h₁) = ut + 0.5at²⇒  0-245 = 4.9t + 0.5×(-9.8)×t²⇒ -245 = 4.9t - 4.9t²⇒ 4.9t² -4.9t -245 =0solving it, we get   t = 7.59sv  = u +  at = 4.9 -9.8×7.59 = 4.9 - 74.38 = -69.48 m/svelocity is  69.48 m/s downward