What temperature is Cl2 at after being heated for 20 minutes?

Will give brainliest! jay rides his 2.0-kg skateboard. he is moving at speed 5.8 m/s when he pushes off the board and continues to move forward in the air at 5.4 m/s. the board now goes forward at 13 m/s. a. determine jay’s mass. b. determine the change in the internal energy of the system during this process.(express your answer to two significant figures and include the appropriate units.)

Blank liquids and gases exert a buoyant force on objects placed in them

Matter is needed to transfer thermal energy bya. conductionb. convectionc. radiation d. both a & b.