Recent questions in Engineering

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A free particle has kinetic energy equal to 35eV a)- What is the velocity of the particle? b)- If this velocity is known to within 0.2% accuracy, what is r of the position that particle? Assume that the

Cerissa asked Sep 13, 2020

by Cerissa

7.5k points

1 answer

3 votes

108k views

Ammonia enters an adiabatic compressor operating at steady state as saturated vapor at 300 kPa and exits at 1400 kPa, 140◦C. Kinetic and potential energy effects are negligible. Determine: a. power input

Relaxing In Cyprus asked Sep 13, 2020

by Relaxing In Cyprus

6.1k points

1 answer

2 votes

6.2k views

he Weather Channel reports that it is a hot, muggy day with an air temperature of 90????F, a 10 mph breeze out of the southwest, and bright sunshine with a solar insolation of 400 W/m2. Consider the wall

Codingoutloud asked Sep 13, 2020

by Codingoutloud

5.6k points

1 answer

3 votes

232k views

An ideal frictionless DC permanent magnet motor operating from a 24 V source has a no load speed of 240 radians/sec and an armature resistance of 0.2 Ohms. Compute the stall torque of the motor in Newton-meters.

Tyrone Wilson asked Sep 13, 2020

by Tyrone Wilson

5.8k points

1 answer

2 votes

97.5k views

IDK how to do this assignment and I was not given ANY good enough context., srry bout the word wall. Measuring mass is difficult without a scale. But you can make a simple balance using a clothes hanger

Claes Mogren asked Sep 12, 2020

by Claes Mogren

6.1k points

1 answer

3 votes

195k views

If 20 kg of iron, initially at 12 °C, is added to 30 kg of water, initially at 90 °C, what would be the final temperature of the combined system? (Hint: the heat given up by the water will be equal to

Dacopenhagen asked Sep 12, 2020

by Dacopenhagen

6.4k points

1 answer

0 votes

181k views

What kind of shape is the Carnot cycle illustrating on a T-s diagram?

Rashiem asked Sep 12, 2020

by Rashiem

5.8k points

1 answer

3 votes

120k views

Material organization techniques that identify and store material within a box or bag are called

Babbitt asked Sep 12, 2020

by Babbitt

5.3k points

1 answer

5 votes

209k views

An alloy is evaluated for potential creep deformation in a short-term laboratory experiment. The creep rate is found to be 1% per hour at 800°C and 0.055% per hour at 700°C. (a) Calculate the activation

Soo Wei Tan asked Sep 12, 2020

by Soo Wei Tan

6.3k points

1 answer

3 votes

219k views

List 3 types of heat exchangers, and classify them?

Gohel Dhaval asked Sep 12, 2020

by Gohel Dhaval

5.7k points

1 answer

3 votes

161k views

A motor is rated to deliver (output) 2.5 hp at 120 VDC. If the motor runs on 120 V and is 75% efficient, how many watts does it draw from the power line (input)? ( input power is always greater than output

Pyae Sone Nyein asked Sep 12, 2020

by Pyae Sone Nyein

6.3k points

1 answer

5 votes

194k views

The high-pressure air system at OSU's Aerospace Research Center is fed by a set of two cylindrical tanks. Each tank has an outer height of 50 ft and an outer diameter of 4.6 ft. The tanks are made of 0.

Yaniv Oliver asked Sep 12, 2020

by Yaniv Oliver

5.9k points

1 answer

4 votes

87.7k views

A vertical piston-cylinder assembly contains water. The piston has a mass of 2 kg and a diameter of 7 cm . Assume atmospheric pressure to be 101 kPa. a. Determine the vertical force necessary on the piston

Sunil P asked Sep 12, 2020

by Sunil P

5.9k points

1 answer

0 votes

65.4k views

8.6 WP Water is the working fluid in an ideal Rankine cycle. Steam enters the turbine at 1400 lbf/in.2 and 1000°F. The condenser pressure is 2 lbf/in.2 The net power output of the cycle is 1 × 109 Btu/h.

Inchara Raveendra asked Sep 12, 2020

by Inchara Raveendra

6.1k points

1 answer

4 votes

6.2k views

What should you, the worker, be aware of with regard to evacuation procedures at your workplace

Monte Chan asked Sep 12, 2020

by Monte Chan

6.9k points

1 answer

1 vote

39.9k views

The water in a large lake is to be used to generate electricity by the installation of a hydraulic turbine-generator at a location where the depth of the water is 50 m. Water is to be supplied at a rate

Webbi asked Sep 12, 2020

by Webbi

6.0k points

2 answers

4 votes

113k views

A ball is dropped from a height of 150cm. The ball has a gravitational potential energy of 5j (Joules) before it was released. As the ball falls to the flour, the gravitational potential energy and kinetic

Mahdi Younesi asked Sep 12, 2020

by Mahdi Younesi

6.1k points

1 answer

2 votes

16.8k views

Recently, there was an outbreak of a computer virus, known as the Melissa virus. The FBI is determining whether the virus meets the requirements in the criminal code for an investigation. Which legal justification

Mike Nelson asked Sep 12, 2020

by Mike Nelson

5.6k points

1 answer

5 votes

46.7k views

39C On a hot summer day, a student turns his fan on when he leaves his room in the morning. When he returns in the evening, will the room be warmer or cooler than the neighboring rooms? Why? Assume all

JohnnyArt asked Sep 11, 2020

by JohnnyArt

6.0k points

1 answer

2 votes

164k views

A 5Kw solar system may produce enough energy to power your home. a)-True b)- False

Bantha Fodder asked Sep 11, 2020

by Bantha Fodder

5.9k points

1 answer

0 votes

178k views

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