A 9-kg sled sliding freely on an icy surface experiences a 3-N frictional force exerted by the ice and an air-resistive force of 0.6 N. a. What is the net force acting on the sled? b. What is the acceleration of
the sled?

Yup no bull frogs here man

Aform of energy that is reflected or emitted from objects in the form of electrical and magnetic waves that can travel through space. there are many forms of  electromagnetic  energy including gamma rays, x rays, ultraviolet radiation, visible light, infrared radiation, microwaves and radio waves.

Kiloleter, mega leterhope this !

//(b) both involve the use of levers;