Which is a size-dependent property? a. boling point b. conductivity c. density d. mass

Coal contains energy. a. light b. kinetic c. chemical d. mechanical

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.

How do the forces acting on a boat compare to the force acting on a plane ?