An object starts at 4m/s and accelerates to 6m/s in 10 seconds. Find its displacement. (the answer is 50 m but I don't know how to solve the question)

Athin, square metal plate measures 14 cm on each side and has emissivity of 0.60. the plate is heated to a temperature of 745°c. what is the rate at which the plate radiates energy ? the stefan-boltzmann constant is 5.67 × 10-8 w/(m2 ? k4). remember that the plate will radiate energy from both its top and bottom surfaces.

Determine the amount of work done when a crane lifts a 100-n block form 2m above the ground to 6m above the ground

Abar magnet cut in half will form a total ofpoles.a)fourb)eightc)two