An ice skater is moving across frictionless ice at 12 m/s when she hits a 7.7 m wide patch of rough ice. She slows steadily, then continues on at 7.1 m/s upon leaving the rough patch of ice. How much time did it take the skater to cross the rough ice

Road users moving into your lane, brake lights, and abrupt changes in road surface are a. rare at night b. indicators of potential hazards c. not worth worrying about before you reach them d. no problem for experienced drivers

Which of the following situations is impossible? a) an object has velocity directed east and acceleration directed east. b) an object has zero velocity but non-zero acceleration. c) an object has constant non-zero velocity and changing acceleration. d) an object has velocity directed east and acceleration directed west. e) an object has constant non-zero acceleration and changing velocity.

What is the power rating of the lightbulb if 3.0 a flow through it when connected to a 15 v battery