Acar travels on a straight, level road. (a) starting from rest, the car is going 38 ft/s (26 mi/h) at the end of 4.0 s. what is the car's average acceleration in ft/s2? (b) in 3.0 more seconds, the car is going 76 ft/s (52 mi/h). what is the car's average acceleration for this time period?

Simple machines can a. increase force only b. decrease force only c. increase or decrease force

What type of relationship exists between the length of a wire and the resistance, if all other factors remain the same? o a. resistance is directly related to length. ob. resistance is directly related to the square of the length. c. resistance is inversely related to the length. d. resistance is inversely related to the square of the length. reset next

Diamond will scratch quartz. true or false