Recent questions in Engineering

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A type 3 wind turbine has rated wind speed of 13 m/s. Coefficient of performance of this turbine is 0.3. Calculate the rated power density of the wind that is hitting the turbine. Calculate the mechanical

Lysa asked Sep 21, 2020

by Lysa

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3 votes

77.4k views

5. A typical paper clip weighs 0.59 g and consists of BCC iron. Calculate (a) the number of unit cells and (b) the number of iron atoms in the paper clip. (The lattice parameter for BCC iron is 2.866 x

PillarOfLight asked Sep 21, 2020

by PillarOfLight

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1 answer

2 votes

14.4k views

Identify the types of bonding that occur within a polymer system and how this affects its properties

Fourth asked Sep 21, 2020

by Fourth

5.7k points

1 answer

5 votes

23.0k views

A disk with radius of 0.4 m is rotating about a centrally located axis with an angular acceleration of 0.3 times the angular position theta. The disk starts with an angular velocity of 1 rad/s when theta

Mrswmmr asked Sep 21, 2020

by Mrswmmr

6.4k points

1 answer

4 votes

228k views

The universe is sometimes described as an isolated system. Why?

Perry Hoekstra asked Sep 21, 2020

by Perry Hoekstra

6.6k points

1 answer

3 votes

166k views

Write a method called compFloat5 which accepts as input two doubles as an argument (parameter). Write the appropriate code to test the two numbers up to five decimal points to see if they are close enough.

Victor Herrera asked Sep 21, 2020

by Victor Herrera

6.1k points

1 answer

1 vote

117k views

State the mathematical expression to define the availability of equipment over a specified time and operational availability?

SupAl asked Sep 21, 2020

by SupAl

5.6k points

1 answer

5 votes

193k views

Water vapor at 5 bar, 320⁰ C enters a turbine operating at steady state with a volumetric flow rate of 0.65 m3 /s and expands adiabatically to an exit state of 1 bar, 160⁰ C. Kinetic and potential energy

Lyron asked Sep 21, 2020

by Lyron

6.1k points

1 answer

0 votes

225k views

How can you evaluate whether the slope of the dependent variable with an independent variable is the same for each level of the dummy variable?

Jbleners asked Sep 21, 2020

by Jbleners

5.5k points

1 answer

4 votes

89.8k views

In crash tests, a shock absorber is used to slow the test car. The shock absorber consists of a piston with small holes that moves in a cylinder containing water. Viscous dissipation in the water transforms

Kellyb asked Sep 21, 2020

by Kellyb

5.9k points

1 answer

5 votes

80.6k views

It is not a practical proposition to take direct measurements in nanoscale, but we can estimate variations in position and momentum of particles by a)-Scanning Electron Microscopes b)-Transmission Electron

Mejobloggs asked Sep 21, 2020

by Mejobloggs

5.7k points

1 answer

1 vote

43.1k views

ladders are not required to be inspected for visible defects prior to the first use of each work shift,and after any occuurrence that could affect their safety.. True or False?

Wilton asked Sep 20, 2020

by Wilton

6.5k points

1 answer

0 votes

99.8k views

A reciprocating engine of 750mm stroke runs at 240 rpm. If the length of the connecting rod is 1500mm find the piston speed and acceleration when the crank is 45 past the top dead center position.

Felix Benning asked Sep 20, 2020

by Felix Benning

5.8k points

1 answer

0 votes

22.7k views

Crystal lattice can be characterized with a) angle, geometry and coordination number b) the color, size, lattice type; c) hardness, geometry d) atomic size, plasticity

Michael Lewis asked Sep 20, 2020

by Michael Lewis

6.8k points

1 answer

4 votes

151k views

Methane and oxygen react in the presence of a catalyst to form formaldehyde. In a parallel reaction, methane is oxidized to carbon dioxide and water. CH4 + O2 → HCHO + H2O CH4 + 2O2 → CO2 + 2H2O The feed

Tuff asked Sep 20, 2020

by Tuff

5.4k points

1 answer

3 votes

189k views

General ventilation is effective only if

Jopasserat asked Sep 20, 2020

by Jopasserat

5.7k points

1 answer

2 votes

228k views

You should always engage the parking brake whenever using any type of lift.

Hugh W asked Sep 20, 2020

by Hugh W

5.7k points

1 answer

3 votes

32.8k views

Two variables, num_boys and num_girls, hold the number of boys and girls that have registered for an elementary school. The variable budget holds the number of dollars that have been allocated to the school

Ashleysmithgpu asked Sep 20, 2020

by Ashleysmithgpu

6.6k points

1 answer

2 votes

108k views

A 2.2-kg model rocket is launched vertically and reaches an altitude of 70 m with a speed of 30 m/s at the end of powered flight, time t = 0. As the rocket approaches its maximum altitude it explodes into

Bluelights asked Sep 20, 2020

by Bluelights

5.9k points

1 answer

0 votes

30.9k views

Suppose that the number of times that Vampire Bill gets attacked by Hep V in a given year is a Poisson random variable with parameter λ = 5. Now, he discovered a new drug (based on large quantities of

Sun Lee asked Sep 20, 2020

by Sun Lee

5.6k points

1 answer

3 votes

18.8k views

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