1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Over [174]
3 years ago
11

The phase sequence of a 3-phase system for which VAN = 120 /90o V and VBN = 120 /210o V is:_______

Engineering
1 answer:
Vadim26 [7]3 years ago
4 0

Answer:

b. abc

Explanation:

The phase rotation and its sequence is order in which voltage is reached to their respective sources. The wave forms of a polyphase flow through AC source to the panel. The three phase system has two possible sequence which can be a-b-c or c-b-a. The correct answer is therefore b.

You might be interested in
Consider a simply supported rectangular beam with a span length of 10 ft, a width of 8 in, and an effective depth of 20 in. Norm
yulyashka [42]

Answer:

beam with a span length of 10 ft, a width of 8 in, and an effective depth of 20 in. Normal weight concrete is used for the beam. This beam carries a total factored load of 9.4 kips. The beam is reinforced with tensile steel, which continues uninterrupted into the support. The concrete has a strength of 4000 psi, and the yield strength of the steel is 60,000 psi. Using No. 3 bars and 60,000 psi steel for stirrups, do the followings:

8 0
2 years ago
You installed a new 40 gallon water heater with a 54,000 BTUh burner. The underground water temperature coming into the house is
kipiarov [429]
14256000. Kanjiuijhgg
5 0
3 years ago
Read 2 more answers
A polyethylene rod exactly 10 inches long with a cross-sectional area of 0.04 in2 is used to suspend a weight of 358 lbs-f (poun
Nadya [2.5K]

Answer:

Final length of the rod = 13.90 in

Explanation:

Cross Sectional Area of the polythene rod, A = 0.04 in²

Original length of the polythene rod, l = 10 inches

Tensile modulus for the polymer, E = 25,000 psi

Viscosity, \eta = 1*10^{9} psi -sec

Weight = 358 lbs - f

time, t = 1 hr = 3600 sec

Stress is given by:

\sigma = \frac{Force}{Area} \\\sigma = \frac{358}{0.04} \\\sigma = 8950 psi

Based on Maxwell's equation, the strain is given by:

strain = \sigma ( \frac{1}{E} + \frac{t}{\eta} )\\Strain = 8950 ( \frac{1}{25000} + \frac{3600}{10^{9} } )\\Strain = 0.39022

Strain = Extension/(original Length)

0.39022 = Extension/10

Extension = 0.39022 * 10

Extension = 3.9022 in

Extension = Final length - Original length

3.9022 =  Final length - 10

Final length = 10 + 3.9022

Final length = 13.9022 in

Final length = 13.90 in

7 0
3 years ago
A current vehicle registration expires at _____ of the first owner listed on the registration form
wariber [46]

Answer:

Midnight on the birthday. Hope this helps!

3 0
3 years ago
A car travels from A, due north to a town B 4 km away. It then travels due east until it arrives town C 5 km from B. determine t
morpeh [17]

Answer:

A to C = 6.4 km

Explanation:

A to B = 4 km

B to C = 5 km

A to C =  using pythagorean theorem

a² + b² = c²

a = A to B = 4

b = B to C = 5

c = A to C

c² = 4² + 5²

c = 6.4 km (A to C)

8 0
3 years ago
Other questions:
  • A flocculation basin equipped with revolving paddles is 60 ft long (the direction of flow). 45 ft wide, and 14 ft deep and treat
    11·1 answer
  • Determine if the following errors are systematic or random. Justify your response. (a) Effect of temperature on the circuitry of
    9·1 answer
  • Establishes general guidelines concerning licensing and vehicle
    10·2 answers
  • You will be observing laminar-turbulent transition for room temperature (about 20°C) water flowing in a 0.602"" ID pipe (Schedul
    8·1 answer
  • Might give brainliest
    8·1 answer
  • A block of mass M rests on a block of mass M1 = 5.00 kg which is on a tabletop. A light string passes over a frictionless peg an
    14·1 answer
  • British standered institution
    5·1 answer
  • Choose the three questions that an engineer should ask himself or herself when identifying the need of a problem.
    6·2 answers
  • A Class A fire extingisher is for use on general combustibles such as:​
    14·1 answer
  • The fracture strength of glass may be increased by etching away a thin surface layer. It is believed that the etching may alter
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!