Bill Katz prefers more of good 1 to less and he prefers less of good 2 to more. Bill has convex preferences. Draw his indifference curve with good 1 on the horizontal axis and good 2 on the vertical axis. Is the curve positively or negative slopped? Why? Is the curve convex or concave? Why?

Which law represents the thermodynamic statement of the conservation of energy of a system? a. the fourth law b. the first law c. the second law d. the third law

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.)

Could someone . i have tried to solve myself but my calculation is off