spiderweb and a Kevlar jacket have some obvious differences. Which property is similar between the web and the jacket?
1. A spiderweb and a Kevlar jacket have some obvious differences. Which property is similar between the web and the jacket?
Arrangement of atoms in molecules
2. Assuming silk from spiderwebs could be made just as strong as Kevlar, why would a company still choose to use Kevlar in producing bulletproof fabrics?
The cost might be higher for producing spiderweb silk
3. Which microscopic detail affects the strength of different forms of silk?
Different silk strands have different combinations of amino acids
4. Which type of silk is the strongest?
Major ampullate
5. Which natural source has been bioengineered to make silk proteins?
Goat milk
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Can someone help me with Refining Design Q.C?
Which statement best defines metallurgy?(1 point)
the science and technology of metals, including its properties, extraction, and uses
the science and technology of metals, including its properties, extraction, and uses
a metal made by combining two or more metallic elements, designed to improve the quality of the compound
a metal made by combining two or more metallic elements, designed to improve the quality of the compound
a blast of hot compressed air introduced into a smelting furnace to create industrial metals
a blast of hot compressed air introduced into a smelting furnace to create industrial metals
the protection of the environment, workers, and local communities during the process of metal extraction and use
Engineers in California want to build a structure that can withstand earthquakes. Which iron alloy should they use?(1 point)
iron plus vanadium for shock absorption
iron plus vanadium for shock absorption
iron plus chromium for hardness
iron plus chromium for hardness
iron plus carbon for strong but lightweight steel
iron plus carbon for strong but lightweight steel
iron plus nickel for corrosion resistance
Which option is the least likely use for a blast furnace?(1 point)
to separate impurities from metals
to separate impurities from metals
to minimize emissions during smelting
to minimize emissions during smelting
to smelt metal into workable forms
to smelt metal into workable forms
to create alloys from multiple metals
Humans have been smelting ore for thousands of years. Ancient humans smelted ore to make all but which of the following?(1 point)
weapons
weapons
jewelry
jewelry
tools
tools
wiring
Which phrase best describes ore?(1 point)
rock from mining that contains a valuable mineral
rock from mining that contains a valuable mineral
two or more metals combined to make a better product
two or more metals combined to make a better product
the properties and uses of a metal
the properties and uses of a metal
the impurities separated from metal
Heyo is 100% correct
I need help on the Using Organic Compounds quick check
Refining Design Quick Check
1. Which statement best defines metallurgy?
-the science and technology of metals, including its properties, extraction, and uses
2. Engineers in California want to build a structure that can withstand earthquakes. Which iron alloy should they use?
-iron plus vanadium for shock absorption
3. Which option is the least likely use for a blast furnace?
-to minimize emissions during smelting
4. Humans have been smelting ore for thousands of years. Ancient humans smelted ore to make all but which of the following?
-wiring
5. Which phrase best describes ore?
-rock from mining that contains a valuable mineral
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To find the answer to this question, we need to compare the properties of spiderwebs and Kevlar jackets.
Spiderwebs are created by spiders and are primarily composed of proteins. They are known for their incredible strength and elasticity. Spiderwebs have a high tensile strength, meaning they can withstand significant pulling forces without breaking. Additionally, spiderwebs are lightweight and have the ability to absorb and dissipate energy, making them resistant to vibrations.
On the other hand, Kevlar jackets are synthetic materials made of strong and durable fibers called aramids. Kevlar is widely used for its exceptional strength, impact resistance, and heat resistance. It is often used in body armor, including police and military vests, due to its ability to provide protection against bullets and other high-velocity projectiles.
From these properties, the similarity between spiderwebs and Kevlar jackets is their strength. Both spiderwebs and Kevlar jackets exhibit high tensile strength, allowing them to withstand external forces without breaking or tearing. This strength is crucial in providing protection and durability for both spiderwebs and Kevlar jackets.