Un niñno empuja una caja al aplicarle una fuerza horizontal de 8 N. Una fuerza de friccion cinetica actua sobre la caja con una magnitud de 5 N cuando ´esta es arrastrada 0.7 m por el piso, ¿cuales son (a) el trabajo realizado por la fuerza aplicada por el niño y (b) el aumento en energıa termica de la caja y el piso?

While listening to operatic solos, musicians process the lyrics and the tunes in separate brain areas. this most clearly illustrates the functioning of different

Explain what it means to view something from a frame of reference. provide an example that illustrates your explanation. (4 points)

Abag of potato chips contains 2.00 l of air when it is sealed at sea level at a pressure of 1.00 atm and a temperature of 20.0 deg c. what will be the volume of the air in the bag if you take it with you, still sealed, to the mountains where the temperature is 7.00 deg c and atmospheric pressure is 70.0 kpa? assume that the bag behaves like a balloon and that the air in the bag is in thermal equilibrium with the outside air.