登录 注册

-理学Science- 数学类Mathematics 化学类Chemistry 物理类Physics 生命科学Life Science 城市规划Urban Planning 建筑与景观设计Architecture and Landscape Design 心理与认知科学类Psychology and Cognitive Science 地球与空间科学Earth and Space Science
-信息与工程Information and Engineering- 信息科学技术类Information Science and Technology 计算机类Computing 人工智能类Artificial Intelligence 材料科学与工程Materials Science and Engineering 件与微电子Software and Microelectronics 自动化Automation 集成电路Integrated Circuits 土木工程Civil Engineering 水利水电工程Water Conservancy & Hydropower Engineering 建筑管Construction Management 环境工程Environmental Engineering 机械工程Mechanical Engineering 能源与动力工程Energy and Power Engineering 车辆与运载Vehicles and Transportation 工业工程Industrial Engineering 工程力学Engineering Mechanics 航天宇航工程Aerospace Engineering 电子工程Electronic Engineering 电气工程Electrical Engineering
-商科Business- 经济Economics 管理科学Management Science 金融Finance 会计Accounting 创新创业Innovation and Entrepreneurship 领导力与组织管理Leadership and Organization Management 市场营销Marketing
-人文及社科Arts, Humanities and Social Science- 历史History 哲学Philosophy 电影学Film 政治Politics 法律Laws 文学Literature 社会学Sociology 国际关系学International Relations 教育学Education 艺术学Fine Arts 语言类Languages 传媒类Media
-医学Medicine- 药学Pharmacy 护理学Nursing 基础医学Basic Medicine 临床医学Clinical Medicine 生物医学工程Biomedical Engineering
会计Accounting
经济Economics
金融Finance
领导力与组织管理Leadership and Organization Management
土木工程Civil Engineering
计算机类Computing
其他 All Others
B4. The overhanging beam has the distances X1 = 4 m and Xp = 3 m and distributed line load intensities of W1 = 112 kN/m and we = 289 kN/m. w B X x a) Determine the magnitude of the equivalent load for the triangular line load (kN). Answer: a) Determine th
匿名用户 匿名用户 2021-11-29 17:06 土木工程Civil Engineering

B4. The overhanging beam has the distances X1 = 4 m and Xp = 3 m and distributed line load intensities of W1 = 112 kN/m ... 查看全部

  • 2021-11-29 17:06

  • 0

    赞同

  • 1

    回答
a tank is in the frustum of a right circular cone is supported(held together) with steel hoops at the bottom and the top. thediameter at the top is 1.20m and 1.80m at the bottom and is 1.80high. if the tank is filled with 900mm of oil of specific gravityi
匿名用户 匿名用户 2021-11-29 17:06 土木工程Civil Engineering

a tank is in the frustum of a right circular cone is supported(held together) with steel hoops at the bottom and the top... 查看全部

  • 2021-11-29 17:06

  • 0

    赞同

  • 1

    回答
K= 1. The groundwater well used for water supply of City of Prairie View, USA contains 5.3 mg/l of aluminum (A1*3). The city wants to lower the aluminum levels to 0.5 mg/1. (1) How much Aluminum will stay in solution if the pH is reduced to 4.5. (i) on th
匿名用户 匿名用户 2021-11-29 17:06 土木工程Civil Engineering

K= 1. The groundwater well used for water supply of City of Prairie View, USA contains 5.3 mg/l of aluminum (A1*3). The ... 查看全部

  • 2021-11-29 17:06

  • 0

    赞同

  • 1

    回答
8. Determine membrane area needed for RO system to produce water that contains NaCl of 500 mg/L with flow rate of 1000 m /d. Note that the feed concentration of NaCl is 3000 mg/L. Assume R = 90%, pump pressure is 45 atm. The constant of membrane (k) is 2.
匿名用户 匿名用户 2021-11-29 17:06 土木工程Civil Engineering

8. Determine membrane area needed for RO system to produce water that contains NaCl of 500 mg/L with flow rate of 1000 m... 查看全部

  • 2021-11-29 17:06

  • 0

    赞同

  • 1

    回答
3.There is one mistake in the following calculation. Identifythe error, when it was first made.
匿名用户 匿名用户 2021-11-29 17:06 土木工程Civil Engineering

3.There is one mistake in the following calculation. Identifythe error, when it was first made.Q4.) [Reynolds Transport ... 查看全部

  • 2021-11-29 17:06

  • 0

    赞同

  • 1

    回答
A hot finished rectangular hollow section member is used as a strut in a pin-jointed truss structure. Determine the compression resistance of the member knowing that the design axial load of the strut is Ned - 131.23 kN. Given: Section: 150 x 100 x 6.3 RH
匿名用户 匿名用户 2021-11-29 17:06 土木工程Civil Engineering

A hot finished rectangular hollow section member is used as a strut in a pin-jointed truss structure. Determine the comp... 查看全部

  • 2021-11-29 17:06

  • 0

    赞同

  • 1

    回答
A rectangular channel has a width b = 19 m. The critical specific energy in the channel (E) = 28 m. Then, the flow rate in the channel is O A 384.17 m3/sec O B. 151.77 m3/sec O C. 51223 m3/sec O D. 144 41 m3/sec
匿名用户 匿名用户 2021-11-29 17:06 土木工程Civil Engineering

A rectangular channel has a width b = 19 m. The critical specific energy in the channel (E) = 28 m. Then, the flow rate ... 查看全部

  • 2021-11-29 17:06

  • 0

    赞同

  • 1

    回答
16 The prestressing strand can be drawn through a die to form: DS (2 Points) Wire Compacted strand None High strength strand
匿名用户 匿名用户 2021-11-29 17:06 土木工程Civil Engineering

16 The prestressing strand can be drawn through a die to form: DS (2 Points) Wire Compacted strand None High strength st... 查看全部

  • 2021-11-29 17:06

  • 0

    赞同

  • 1

    回答
Water is flowing in a 127 m long pipe. The pipe has a diameter D = 0.2 m. If the pipe head loss h = 10 m and assuming f = 0.011. Determine the flow rate in the pipe. hint: h4 = KQ" O A. 0.109 OB. 0.167 OC. 0.301 D. 0.182
匿名用户 匿名用户 2021-11-29 17:06 土木工程Civil Engineering

Water is flowing in a 127 m long pipe. The pipe has a diameter D = 0.2 m. If the pipe head loss h = 10 m and assuming f ... 查看全部

  • 2021-11-29 17:06

  • 0

    赞同

  • 1

    回答
Water is flowing in a 48 cm diameter pipe with a velocity 4.3 m/sec. Determine the Reynold's number for this fiow. Assume viscosity v = 1.57 x 10 m/sec
匿名用户 匿名用户 2021-11-29 17:06 土木工程Civil Engineering

Water is flowing in a 48 cm diameter pipe with a velocity 4.3 m/sec. Determine the Reynold's number for this fiow. ... 查看全部

  • 2021-11-29 17:06

  • 0

    赞同

  • 1

    回答