What is the net force on a 4000-kg car that doubles its velocity from 15m/s west to 30m/s west over 10 seconds

Three alkali metals in group 1 are a. calcium, strontium, barium b. boron, aluminum, gallium c. sodium, potassium, rubidium d. fluorine, iodine, chlorine

Will mark brainliest how many electrons can be held in the energy level n = 4?

Answer asap need by wednesday morning calculate the ph of 0.036m naoh best answer will be brainliest