A uniform continuous line charge with net positive charge Q and length L lies on the x-axis from to . This problem asks about the electric field at a point on the y-axis: (0,a). continuous line charge 1) What is the direction of the x-component of the electric field at (0,a)

In which situation is the acceleration of a car negative? question 5 options: a)the velocity of a car was 75 km/hr over 4 hours. b)the velocity of a car reduced from 50 km/hr over one minute. c)the velocity of a car increased from 40 km.h to 75 km/h over 15 minutes. d)the velocity of a car was 45 km/hr at 2: 00pm and at 4: 00pm its velocity was 85 km/ht.