in a swimming race, a father givews his 4 year old son a 10 second head start. the pool is 25 meters long. the child swims at 0.80 m/s the entire tiem while the father accerlerates from rest at a rate of 1.2m/s

the small 0.38-kg slider is known to move from position a to position b along the vertical-plane slot. determine (a) the work done on the body by its weight and (b) the work done on the body by the spring. the distance r = 0.70 m, the spring modulus k = 154 n/m, and the unstretched length of the spring is 0.53 m

explanation:

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when heated, the valance electrons increased their speed and transferred the heat from electron to electron.   i just took the test.