The loser of a race had to run an extra 1600m as terms of a bet. she runs the first 800m at an average speed of 6m/s and the next 800m at an average speed of 8m/s. what is her total time needed to run 1600m? what is her average speed?

i think it’s a. this is because if they measured the mass of something with a mass of 150g, then their final answer would have to be approximately 150g. though all of their answers are almost 150, rosa and tran have the closest answers (or the exact answer) to the accurate one.

the answer is a. at the equator

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:

-reverse card

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hope this !