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Given a free particle, the ground state of the system is the eigenstate with zero momentum. However, we also know that momentum operator does not have proper eigenstates, but rather it's spectrum is described

Trashrobber asked Oct 12, 2024

by Trashrobber

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Two electricians are discussing receptacles. Electrician A says that a 15 A receptacle on a 20 A branch circuit can supply a cord-and-plug connected load of 15 A. Electrician B says that a 40 A branch

Sidharth Anil asked Oct 12, 2024

by Sidharth Anil

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Water pressure inside a hose nozzle can be less than atmospheric pressure due to the Bernoulli effect. Explain in terms of energy how the water can emerge from the nozzle against the opposing atmospheric

Adammtlx asked Oct 12, 2024

by Adammtlx

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If all of the dimensions of the block double (to become 20 cm wide, 8 cm tall, and 6 cm deep), what happens to the resistance of electric current along each axis?

Milovanderlinden asked Oct 12, 2024

by Milovanderlinden

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You draw in a deep breath on a chilly day, inhaling 4.0 L of 0 C air. If the pressure in your lungs is a constant 1.0 atm, how much heat must your body supply to warm the air to your 37 C internal body

Josh Lindsey asked Oct 12, 2024

by Josh Lindsey

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22.0k views

Data recorded from a 400 V,50 Hz,3-phase induction motor showed when operating on full-load it took a current of 95 A at a power factor of 0.8 lagging and ran with a slip of 4%. The stator losses were

Jrosell asked Oct 12, 2024

by Jrosell

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2 votes

221k views

An arrow is shot straight up with an initial speed of 98 m/s. nine seconds later its speed straight up is only 9.8 m/s. at what rate is the arrow accelerated by the pull of the earth’s gravitational field?

Remul asked Oct 12, 2024

by Remul

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5 votes

117k views

According to the spectral sensitivity curve, 450 nm wavelength of light would need to be presented at ____________________to appear as bright as a 550 nm wavelength

Daramarak asked Oct 12, 2024

by Daramarak

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1 answer

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117k views

Suppose that the supply of lemonade is represented by: QS = 40P where Q is measured in pints and P is measured in cents per pint. Answer the following questions: 1- If the demand for lemonade is QD = 5,

Dimroc asked Oct 12, 2024

by Dimroc

8.8k points

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5 votes

18.3k views

"According to the theory of the same name, after the ""Big Bang"" there were only what two things? A. Space and time. B. Matter and antimatter. C. Neutrons and electrons. D. Mass and gravity".

Nirodya Gamage asked Oct 12, 2024

by Nirodya Gamage

8.6k points

1 answer

1 vote

109k views

A runner finished a 4.21*10m race with an average velocity of 5.42m/s. How long did it take her to complete the race in seconds?

Jellyfishtree asked Oct 12, 2024

by Jellyfishtree

7.9k points

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1 vote

21.1k views

Assume you have sea water that weighs 64 lb/ft³ and contains 35 parts per thousand (0.035) dissolved salt by weight. how many cubic feet of the sea water would you need to place in an evaporation basin

Kevyn asked Oct 12, 2024

by Kevyn

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What is the acceleration of the vehicle if it accelerates from rest to 25 m/s in four seconds? A) 2.5 m/s² B) 5 m/s² C) 6.25 m/s² D) 10 m/s²

Tangens asked Oct 12, 2024

by Tangens

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3 votes

226k views

2. A loaded Boeing 747 jumbo jet has a mass of 200,000 kg. What net force is required to give the plane an acceleration of 3. 5 m/s down the runway for takeoffs?

Chugadie asked Oct 12, 2024

by Chugadie

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2 votes

133k views

A cat walking at 0.56m/s sees a mouse and accelerates uniformly at 0.40 m/s² for 3.0 s. What is the cat's displacement during this time?

Ferrakkem Bhuiyan asked Oct 12, 2024

by Ferrakkem Bhuiyan

7.9k points

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4 votes

49.8k views

How many feet of stopping distance does a vehicle have if driving at 65 mph?

Jamiecon asked Oct 12, 2024

by Jamiecon

8.4k points

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0 votes

214k views

Which requires more work, lifting a 90 kg bag up 6 m in 4 minutes, or lifting a 45 kg bag up 12 m in 2 minutes?

Tom Finet asked Oct 12, 2024

by Tom Finet

8.0k points

1 answer

5 votes

172k views

If the O₂ sensor reading is always low 3, what could be the possible cause? 1) Faulty O₂ sensor 2) Clogged fuel injectors 3) Exhaust leak 4) Incorrect fuel mixture

Yathirigan asked Oct 12, 2024

by Yathirigan

8.0k points

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1 vote

98.4k views

Condensation is a process through which a gas becomes a ________.

Kakarot asked Oct 12, 2024

by Kakarot

8.4k points

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4 votes

41.2k views

Fill in the blanks in the following paragraph to correctly identify four principles of the second law of thermodynamics. Heat naturally flows from an object that has a _______________ temperature to an

Altiano Gerung asked Oct 12, 2024

by Altiano Gerung

8.2k points

1 answer

2 votes

4.0k views

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