If a truck driver is driving at 30 mph and she makes a U-turn, then starts driving at 30 mph in the opposite direction, did the driver's speed or velocity change after changing direction? Why? PLEASE THE QUIZ IS DUE IN A BIT :(

Ineed extreme for task 2. my student number is 571721. many to whoever solves this correctly, im in debt to you.

High schoolphysics 5+3 pts a neon light consists of a glass tube with metal wires at each end. when connected to a high-voltage source, the gas glows. if a fly lands on the glass tube, what will most likely happen? a) the fly will not feel a shock because the glass conducts any free electrons back into the gas. b) electrons will flow directly from the metal wires along the glass and shock the fly. c) the fly will not feel a shock because the glass insulates it from the electrons in the gas and the metal. d) electrons that are moving through the gas will be conducted through the glass and shock the fly.

Using the free-body diagram, calculate the net force acting on the sled. is the sled in a state of dynamic equilibrium?