What does it mean for their to be a net force on an object vs no net force? Which one is described as balanced forces and which is described as having unbalanced forces? ✨help✨

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.)

Which diagram correctly demonstrates the various forces acting on a ball moving horizontally with some speed?

More solar radiation is absorbed by earth’s surface than by