subject
English, 18.11.2020 23:40 lizdeleon248

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? O Helmets must protect the face.
O Helmets must not prevent seeing or hearing.
O Scientists invent new plastics all the time.
O Materials used for police can be used in sports.

ansver
Answers: 2

Another question on English

question
English, 22.06.2019 05:00
1point the u.s. declaration of independence is structured logically to lead from premise to conclusion. which statement best completes its flow of reasoning? 1. all people are equally entitled to certain rights. ii. our rights have been violated by the british government. iii. ? o a. americans agree that king george iii is a tyrannical ruler. o b. americans must form their own government to protect their rights. o c. these rights are natural and god-given to all men equally. o d. no one can argue with the list of violations presented herein.
Answers: 1
question
English, 22.06.2019 06:30
Read the excerpt from "a defence of poetry.” poetry thus makes immortal all that is best and most beautiful in the world; it arrests the vanishing apparitions which haunt the interlunations of life, and veiling them, or in language or in form, sends them forth among mankind, bearing sweet news of kindred joy to those with whom their sisters abide—abide, because there is no portal of expression from the caverns of the spirit which they inhabit into the universe of things. poetry redeems from decay the visitations of the divinity in man. which details from the excerpt provide more information about shelley’s idea that poetry "makes immortal all that is best and most beautiful in the world”? check all that apply. arrests the vanishing apparitions which haunt the interlunations of life sends them forth among mankind, bearing sweet news to those with whom their sisters abide no portal of expression from the caverns of the spirit redeems from decay the visitations of the divinity in man
Answers: 2
question
English, 22.06.2019 07:30
In this excerpt from act 1 scene v of macbeth what does lady macbeth imply about macbeth
Answers: 1
question
English, 22.06.2019 08:00
Select the abbreviation that tells how the italicized noun clause is used. s-subject, do-direct object, pn-predicate noun, op-object of preposition the first thing to consider was how to find a paying job. s op pn do
Answers: 2
You know the right answer?
Read this excerpt from "Heads Up on Sports Safety.” The dangers to your head depend on the sport, bu...
Questions
question
Mathematics, 28.11.2021 04:50
question
Social Studies, 28.11.2021 04:50
question
Mathematics, 28.11.2021 04:50
question
Mathematics, 28.11.2021 04:50
question
Mathematics, 28.11.2021 04:50
question
Mathematics, 28.11.2021 04:50