Physics, 31.07.2019 15:30 flyingcerberus1408
So, why can a properly executed karate kick break a concrete block without fracturing bones [16]? first, bone is a very strong material. its ultimate compressive strength is approximately 40 times larger than concrete. second, contact is made with the edge of the foot. this concentrates the force into a small area of the target and reduces the likelihood of bending a bone to the point of fracture. third, the collision with the target is essentially inelastic and extends over several milliseconds, so the peak force, though large, does not exceed the strength of the bone. [8] george b. benedek and felix m. h. villars, physics with illustrative examples from medicine and biology, vol. 1. (menlo park: addison-wesley publishing co., 1974). [16] s. r. wilk, r. e. mcnair, and m. s. feld, am. j. phys. 51, 783 (1983). if a (cross-sectional area of the tibia) ~ 2.5 cm2 c m 2 , compute how far a 67 kg person can fall and land stiff-legged on both legs without breaking a bone. assume f is split evenly between two legs. (hint: f≤2σ a f ≤ 2 σ a )
Answers: 1
Physics, 21.06.2019 21:00
While listening to operatic solos, musicians process the lyrics and the tunes in separate brain areas. this most clearly illustrates the functioning of different
Answers: 1
Physics, 22.06.2019 03:00
Lymphocytes known as blastocysts make antibodies that fight infection. select the best answer from the choices provided t f
Answers: 2
Physics, 22.06.2019 11:00
A2.00-m long piano wire with a mass per unit length of 12.0 g/m is under a tension of 8.00 kn. what is the frequency of the fundamental mode of vibration of this wire?
Answers: 3
Physics, 22.06.2019 16:00
Rank the six combinations of electric charges on the basis of the electric force acting on q1. define forces pointing to the right as positive and forces pointing to the left as negative. rank positive forces as larger than negative forces. q1,q2,q3 = positive(+) q1 = + q2 = + q3 = - q1 = + q2= - q3= + q1= - q2= + q3= + q1= + q2= - q3= - q1,q2,q3 = negative
Answers: 1
So, why can a properly executed karate kick break a concrete block without fracturing bones [16]? f...
English, 23.10.2020 18:50
Mathematics, 23.10.2020 18:50
Computers and Technology, 23.10.2020 18:50
Biology, 23.10.2020 18:50
Mathematics, 23.10.2020 18:50
Health, 23.10.2020 18:50
Geography, 23.10.2020 18:50
Arts, 23.10.2020 18:50
Computers and Technology, 23.10.2020 18:50
English, 23.10.2020 18:50