A car travels 30m A to B in 3s, and 50m from B to C in the next 7s. Calculate the average speed. (Show all the working)

Aman tries to push a box of mass 4 kg with a force of 5 n but the box remains stationary if the coefficient of static friction is 0.45, what is the value of the maximum force of friction?

When using two-wire cable to feed a 240-v appliance that does not require a neutral wire, you should a. mark both ends of the white wire green. b. use the cable as is. c. use only the black wire. d. mark both ends and any exposed area of the white wire black.

True or false when elements combine to form a mixture, the resulting chemical properties may be very different from those of the elements that make it.