Which of the following devices could be used to create a position--time graph for an object?   options: a. capacitor  b. motion sensor  c. ammeter  d. none of the above

Karen is running forward at a speed of 9 m/s. she tosses her sweaty headband backward at a speed of 20 m/s. the speed of the headband, to the nearest whole number relative to a stationary observer watching karen

Your town is considering building a biodiesel power plant describe at least two advantages and two disadvantages

Abar magnet cut in half will form a total ofpoles.a)fourb)eightc)two