An object moves along a distance MN. The first half of the block moves with a speed v1 = 30km/h. The second half of the way the object moves in two stages: in the first half, the object travels with a speed v2 = 20km/h, the second half goes at a speed v3 = 10km/h. Calculate the average speed of the object over the whole distance MN.

show the wavelengths of a wave. show the crests of a wave.

powerful computers now, not then

the minimum amperage that the current in this wire would have to have so that its weight is completely supported by the magnetic force due to earth's field, assuming that no other forces except gravity act on it

higher potential

explanation:

because it is in a high speed so it must move into a of high potential