An 80.0-gram sample of a gas was heated from 25 °c to 225 °c. during this process 346 j of work was done by the system (which was stationary), and its internal energy increased by 7765 j. what is the specific heat capacity of the gas?

One soccer player (a) is moving at 4 km/h when she kicks the ball while another soccer player (b) is moving at 8 km/h. what statement accurately compares their kinetic energy if they have the same mass? a) both soccer players have the same kinetic energy. b) player b has twice the kinetic energy of player a. c) player b has four times the kinetic energy of player a. d) their kinetic energy can't be compared without knowing their mass.