Aerospace engineers design, analyze, model, simulate, and test aircraft, spacecraft, satellites, missiles, and rockets. Aerospace technology also extends to many other applications of objects moving within gases or liquids. Examples are golf balls, high-speed trains, hydrofoil ships, or tall buildings in the wind. As an aerospace engineer, you might work on the Orion space mission, which plans on putting astronauts on mars by 2020. Or, you might be involved in developing a new generation of space telescopes, the source of some of our most significant cosmological discoveries. But outer space is just one of many realms to explore as an aerospace engineer. You might develop commercial airliners, military jets, or helicopters for our airways. And getting even more down-to-earth, you could design the latest ground and sea transportation, including high-speed trains, racing cars, or deep-sea vessels that explore life at the bottom of the ocean.
Answer:
V = 0.00459 ft/s
Explanation:
Since the Piston is moving downwards with a constant velocity V, from the first Newton’s law we know that all vertical forces, must have zero resultant (their sum over vertical axis must equal to zero). Therefore, force that pulls the piston down, is equalized by force of viscous friction Fd= Fvf = 0.5lb (lb here is the pound-force unit). We will relate F ѵ f with τ and from that derive the equation for V.
Fѵf = τ . A
Where τ = µ. du/dy = µ . V/b , and A = π . D . l from this Follows:
Fѵf= (V. A .µ )/b V= ( Fѵf .b )/(A.µ)
Placing all the known values in the equation ( remember to transform inches to feet, by multiplying inches values with the factor 1/12), we obtain :
ft2
V = ((0.5lb) . (0.002/12 ft))/(π . (5.48/12 ft) . (9.50/12 ft) . (0.016 lb.s/(ft^2 )))
V = 0.00459 ft/s
Toxic is the answer, toxic meaning may cause death or other health problems.
Answer:
3.9°C
Explanation:
solution:
we express the surface temperature from the quality of the emitted and absorbed heat rates:
εσA
![\sqrt[4]{}](https://tex.z-dn.net/?f=%5Csqrt%5B4%5D%7B%7D)
/εσ*
........................(1)
where
=0.2
ε=0.6
A=5.67*10^-8 W/m^2K^4
= 1000 W/m^2
now putting these value in eq 1
3.9°C
The method of social engineering that could be used to deliver ransomware is; email phishing
<h3>What are methods of Social engineering?</h3>
Ransomware is simply a type of social engineering that criminals use to steal data, infect computers, and infiltrate company networks.
Now, the most popular form of social engineering that could be used to deliver ransomware is email phishing. This is because email Phishing has become more pervasive and dangerous these days as it is used when attackers/criminals send fraudulent emails that either contain dangerous links or exploitative requests.
Read more about email phishing at; brainly.com/question/26072214
