John's car travels a distance from A to B at a speed of 50 km/h for two hours and from B to Cat a speed of 40 km/h for two hours. What is
the average velocity in m/s?

Which of the following is not a transverse wave? a) soundb) lightc) radiod) all of thesee) none of these

22. the top of a cliff is located a distance h above the ground. at a distance h/2 there is a branch that juts out from the side of the cliff, and on this branch a bird's nest is located. two children throw stones at the nest with the same initial speed, one stone straight downward from the top of the cliff and the other stone straight upward from the ground. in the absence of air resistance, which stone hits the nest in the least amount of time?

Acar jack with a mechanical advantage of 6 needs to produce an output force of 600 n to raise a car. what input force is required? 6 n 100 n 600 n 3,600 n