English, 01.08.2019 01:30 bleesedbeme
Read this excerpt from "heads up on sports safety.” the dangers to your head depend on the sport, but some general principles guide helmet design. first, the helmet needs to be as cool and lightweight and comfortable as possible. second, the helmet needs to be hard enough and fit well enough to protect the skull and brain. for some athletes, like hockey goalies or baseball catchers, the helmet also needs to protect the face from fast pucks or balls. third, it must not prevent the wearer from seeing or hearing. fourth, it cannot cause more injuries than it prevents. it turns out that the way to address many of these concerns is to use hard but flexible, light, strong materials on the outside and soft materials on the inside. scientists create new plastics all the time, but sometimes the best designs come from using old materials in new ways. one recent design makes the shell of helmets out of kevlar, the same kind of light plastic used in bulletproof vests. which is a key detail that supports the main idea that there are general principles that guide sports helmet design?
Answers: 1
English, 21.06.2019 22:00, corynanderson16
Ow does the author reveal katina's initial excitement about her internship? a) by showing how katina responds to conflict b) by describing how katina felt at the end of the day c) by showing how katina interacts with other characters d) by describing how katina selected her clothes with care
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English, 22.06.2019 05:30, lailabirdiemae
There is nothing miniscule about our --let alone our universe.
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English, 22.06.2019 06:30, christophers349
Would the essay be more or less effective in explaining the concept of dead reckoning if you knew from the beginning that ahmed is an ant?
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English, 22.06.2019 09:30, luv4appleallday
What is the italicized part in the sentence , all of the operators are efficient.
Answers: 1
Read this excerpt from "heads up on sports safety.” the dangers to your head depend on the sport, bu...
History, 28.01.2020 11:31
History, 28.01.2020 11:31
History, 28.01.2020 11:31