A 4000-kg car traveling with a speed of 25 m/s skids to a stop on a flat/level surface. The car experiences a 3000N force of friction. Determine the stopping distance of the car.

How much force was applied to an object if was moved 2 meters and the work done on the object was 8 joules? a. 0.25 n b. 4 n c. 6 n d. 16 n

There are two-speed cameras, one in an are where the speed limit is 30 km/h and another where the speed limit is 50 km/h. in which will there be a smaller time interval between the photographs? explain your answer.

Which is the correct symbol for an isotope of iodine with 53 protons and 78 neutrons?