Enginooring Mochanics: Sutca (1Fint Scitester, Firt yoat, Academic yer 2020-2021Deputtane of Civil EngnoegCallege of EngincenngLasenaty ut MisCm link on MiodleInstructor: Dr. Murtada AbassMid-term Examination of E113 1 year2020-2021Date: March 5, 2021Time: 20 MinutesAnswer one question only which isassigned for you onlyYour Question is assigned via Mloodlein Ouizzes SectionYour answer to the question will besubmitted via ZoomQuestion: Determine the reactions of thetruss shown in the Figure,5 KNlomAجميلة محمد15کشيشlomIDMPage15

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Answered: Question: Determine the reactions of…

Engineering

Mechanical Engineering

Question: Determine the reactions of the

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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At present, NASA is planning a mission to Europa, to try and assess its habitability. An argument might also be made for Enceladus, however.Let's imagine you had to pick one of those moons to send an uncrewed (i.e. robotic) mission to. The spacecraft will probably orbit the giant planet (Jupiter in the case of Europa, Saturn in the case of Enceladus), and make many flybys of the moon you're studying.Which moon would you pick, and why? The goal here is to briefly discuss the pros and cons of each moon as a target for a mission. You don't even have to have a strong preference either way, just lay out a few pros and cons for each.Breaking this into a few short paragraphs will probably be a good idea; you can use things like bulleted lists if you want.
Hello, can you please help me with this question attatched, I dont undersand how they got those answers.
4. 51 Pegasi b was the first extra-solar planet found around a main sequence starother than our Sun. The star, 51 Pegasi, is very much like the Sun, and it has a luminosityL = 1.30L⊙. 51 Pegasi b has an average orbital radius of 0.0527 AU and it is tidally lockedto 51 Pegasi. Given that it thought to have a Bond albedo of 0.1, what is its “no greenhouse”temperature? Note- it is tidally locked, but you should assume the temperature of the planetis uniform due to winds transferring heat.
Alex have a hobby to swim at noon.My posture were like 190 cm (102 kg), even though Alex looklike a giant, his personal record was 57 s for 100 m of freestyleswimming. While he have training at lane 4, his friend watchinghim at the middle of lane 6. He is Patrick that remain silent whilewatching Alex swim. Even though Alex try so hard, Alex just have theexact time to his previous best record when Patrick watchinghim. Alex remember that it little bit warm at that noon with 302 Kof water temperature. Alex just wonder, how much shear stressthat Patrick felt when Alex swimming across him? Sketch the system You can assume any logical data you need.
Let's say that the semiempirical binding energy formula is Eb= aA-bA^2/3 - s(N-Z)^2/A -dZ^2/A^1/3 where a,b,s,d are constants. Imagine that you are in a different universe where there are 3 types of nucleons with spin equal to 1/2 and electric charges equal to +1, -1 and 0. Mass similar to that of a proton. Forces are similar to those of our universe. i) How do equations change for A and Z as a function of N+, N-, No and what is the semiempirical equation for the binding energy as a function of A, Z, and No? ii) At what Z and No do we have the maximum and minimum binding energy for every A? iii) When do we have stable nuclei under beta (β) decay? If "alpha particle" in this situation has N+ = N- = No = 2, what does apply for alpha (α) decay? iv) What does apply for nuclear fission and finally, how would life be in this situation?
Newtons laws of cooling proposes that the rate of change of temperature is proportional to the temperature difference to the ambient (room) temperature. And can be modelled using the equation: dT/dt = -k (T-Ta)It can also be written as dT/T-Ta = -k dtWhere:T = Temperature of materialTa = Ambient (room) temperaturek = A cooling constanta) integrate both sides of the equation and show that the temperature difference is given by:(T-Ta) = CoE^-kt(Co is a constant for this problem)B) calculate Co if the initial temperature is 70 degrees C and Ta = 20 degrees C?
In the United States, electricity is sold using the SI units of kilowatt (kW) or megawatt (MW), and fuel for power generation stations is generally purchased using English units, e.g., British thermal unit (Btu), gallon (gal), and ton. An industrial power plant has an average annual load of 100 MW (electrical). If the overall thermal efficiency is 33% (based on HHV), what is the annual cost of fuel if the plant is fired with (a) natural gas, (b) No. 2 fuel oil, and (c) bituminous coal? Use the data from Tables 2.2, 2.7, and 2.13. Assume the cost of natural gas is $5/million Btu, the cost of No. 2 fuel oil is $3/gal, and the cost of bituminous coal is $60/ton (1 ton = 2000 lbm)
Latent heat of fusion is the heat given up as a substance freezes. The latentheat of fusion for water is 144 British thermal units per pound (Btu/lb). Thismeans that 144 Btu are given up for each pound of water that freezes. Howmany British thermal units of heat are given up when 4,000 pounds of waterfreeze?
When a hydrocarbon fuel is burned, almost all of the carbon in the fuel burns completely to form CO2 (carbon dioxide). On average, 0.59 kg of CO2 is produced for each kWh of electricity generated from a power plant that burns natural gas. A typical new household refrigerator uses about 700 kWh of electricity per year. A city's refrigerators produce 20,650 mton CO2/year (50,000 households in the city). If the area of the city is 190 miles2, and if all that CO2 accumulates in the atmosphere, calculate the increase in CO2 concentration by weight in the atmosphere knowing that each cm2 of area carries a column of air that weighs 1 kg. If 1 mature tree absorbs 48 lbm of CO2 per year, what is the ratio of trees to households this city should have to counter the effect of refrigeration?
A bioengineer is interested in the energy requirements of athletes doing theshotput. From a videotape of a shotput throw, the bioengineer determines that the beginning of themotion is when the shot is stationary and is 1.50 m above the ground (height of the athlete’sshoulder when the shot is at the beginning of the throw). The shot has a mass of 7.25 kg. At theinstant the athlete’s hand releases the shot, it is 2.10 m above the ground. During the throw, theshot reaches a maximum height of 4.60 m above the ground and travels a horizontal distance of18.66 m from the point where it was released. How much work does the athlete do on the shotfrom the beginning of the motion to the instant of release?
can you help me solve this question about equlibrium of a particle using the polygon method? four pieces of string are tied to a massless ring. the forces acting on the ring are in gram-force.
The total consumption of electrical energy in the United States is about 1.0 1019joules per year.What is the average rate of electrical energy consumption in watts?If the population of the United States is 300 million, what is the average rate of electrical energy consumption per person?The sun transfers energy to the earth by radiation at a rate of approximately 1.0 kW per square meter of surface. If this energy could be collected and converted to electrical energy with 40 % efficiency, how great an area (in square kilometers) would be required to collect the electrical energy used by the United States?