5. A new type of hoverboard has been designed to levitate over a copper surface. The developers had a skateboard icon test out the hoverboard on a copper halfpipe.
What type of field is responsible for levitating the hoverboard and rider as it
traverses the half pipe?

A248-g piece of copper is dropped into 390 ml of water at 22.6 °c. the final temperature of the water was measured as 39.9 °c. calculate the initial temperature of the piece of copper. assume that all heat transfer occurs between the copper and the water. remember, the density of water is 1.0 g/m

Ais useful when you need a simple machine to you separate two things. a. lever b. screw c. pulley d. wedge

Which of the following are properties of mechanical waves? check all that apply ⭕️ particles of the medium move back and fourth, but do not move with the wave. ⭕️ the particles of the medium always move parallel to the wave motion. ⭕️ wave motion begins with a disturbance in the medium. ⭕️ waves transport energy from a source outward, away from the source.