A Discuss the possibility of fracture of two leg bones that have a length of about 70cm and an average area of about 4cm
2 when a 80kg person jump from a height of 300cm.
Noting: The breaking stress of the bone ϬB =1.5×108 N/m2 , and
Young’s modulus for the bone is Y=1.5×1010 N/m2

the first step is making objective observations.

they have to be based on a certain event and can be confirmed by others if it is right or not.

1 - wave length

2 - amplitude

3 - crest

4 - trough

explanation:

duh.

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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