Samip weighs 350N. The area of one of his feet is 200 cm2. How much pressure is exerted on the ground when he stands on the single foot? And how much will be the pressure when he stands on the both feet? 2. The area of Arjun's one foot is 250 m2. How much will be the pressure exerted on the ground when he stands on his single foot if his weight is 400N?

Can someone me with questions 15 to 17 plz.

16. why must the number of electrons lost equal the number of electrons gained in every redox reaction? use 3 – 4 sentences in your own words to address this question. 18. what type of radiation is emitted when chromium-51 decays into manganese-51? show the nuclear equation that leads you to this answer. 19. a radioactive nucleus alpha decays to yield a sodium-24 nucleus in 14.8 hours. what was the identity of the original nucleus? show the nuclear equation that leads you to this answer.

To apply in a gold the individual gold atoms are united to each other by means of a metallic bond. how would you use the gold block to determine the atomic radius of a gold atom?