A rectangular corral of widths Ly =L and Ly=2L contains seven electrons. What multi- ple of h?/8mL? gives the energy of the ground state of this system? Assume that the electrons do not interact with one another, and do not neglect spin.

Q: State the conservation laws.

A: The law of conservation of energy states that energy can neither be created nor destroyed, can only…

Q: How do nonrenewable resources and renewable resources differ ?

A: Given nonrenewable resources and renewable resources we have to differentiate between nonrenewable…

Q: A river is to be crossed by a girl using a row boat. Rowing Speed Direction of Boat River Velocity…

A: Given, River velocity and boat velocity.

Q: A block of mass 0.1 kg is held against a wall by applying a horizontal force of 5 N on the block. If…

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Q: Why is the sea water denser than fresh water?

A: Fresh water bodies are those water bodies, which do not consist of any mixed impurities or salts in…

Q: The acceleration of a crate sliding down a ramp is given by ax = (0.25t2) m/s? and ay = (1.5t) m/s²,…

A: Given: ax=0.25t2 m/s2ay=1.5t3 m/s2 At t = 0 s vx=3 m/s and vy=4 m/s.

Q: Suppose an object is at 30.0 cm in front of a spherical lens that has a focal length of -40.0 cm.…

A: Given: distance of object, u = - 30.0 cm  (sign convention) focal length of lens, f = - 40 cm…

Q: A hydrogen atom in its ground state actually has two possible, closely spaced energy levels because…

A: Given data, Wavelength associated with photon = 21 cm

Q: Evaluate each of the following to three significant figures and express each answer in Sl units…

A: We have to evaluate the given quantities upto 3 significant digits in SI unit.

Q: Should we or should we not be using fossil fuels?

A: It is not possible to stop collecting and using fossil fuels immediately. Oil, coal, and gas are…

Q: The charges and coordinates of three particles held fixed in the xy plane are q, = -8 nC, x = 0, y =…

A:

Q: The water found in seas and oceans is known as_____water. The water found in lagoons is known as…

A: The water found in seas and oceans is known as salt water

Q: Why is earth flattened at poles?

A: To complete one revolution, a point on Earth’s equator takes 100 miles per hour, but a point near…

Q: 1. Rearrange the equation to solve for n: 1 (7-²) AE = -2.18 × 10-18J On the energy diagram, draw an…

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Q: Times New. 2. 4. 5. 6. Problem 4: Two cars are in a 500 meter race. Car 1 has an acceleration of 3…

A: For car 1 Max. Velocity = 54 m/s u = 0     ,     a = 3 m/s2 Time to gain maximum velocity (t1)  v =…

Q: 4. The moon could be an ideal spaceport for exploring the solar system. A moon launching system…

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Q: Question 22 of 44 Aluminium has a density of 2.70 g/cm. How many moles of aluminum are in a 13.2 cm…

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Q: How will tne value of g measured high in the mountains compare to the Value of g measured at sea…

A: we know that change in gravity with height h g, = g { 1- 2h / R } change in gravity with depth d g,…

Q: 1) Graphically trace all the tributar beams and girders for the framir shown by colors and dotte…

A: Given: The reaction to the girder includes  G-2 (A3-D3). The value of the beam started with B-1 and…

Q: Use integration to find the moment of inertia of a solid uniform cone about y axis, as shown. [Must…

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Q: A soft drink with the properties of 10 °C water is sucked through a 3.5-mm-diameter, 0.25-m-long…

A: This is a question from the viscosity and Reynolds number corresponding to a flow of the fluid…

Q: Why are dams so designed and constructed to have more massive base structures than tops?

A: The pressure at any point inside the dam is a function of its depth relative to the surface of the…

Q: Kindly check and provide solution, thak you

A: RAB=1Ω+1Ω=2Ω

Q: Explain why the divers have to wear special suits before diving into the deep sea

A: The pressure in the deep sea increases to a large order up to 500 times (500 atm )  as compared to…

Q: Is this solution correct? I thought the area in ft2 needs to be converted to in2.

A:

Q: d. Check your answer by calculating the components A, and A, with 0 = 16' as the angle. Write your…

A: Given, Ax=111.8Ay=32.3θA=16.1°Ax=Ax cosθA=111.8×cos16.1=107.41Ay=AysinθA=32.3×sin16.1=8.96

Q: prave t + JA A -3Y 1514

A: The question should be, as follows Grad 1/|r|² = -2r / |r|⁴   Here is your answer,

Q: Problem 1: A bicycle can be modeled as three parts: the back wheel, the frame, and the front wheel.…

A: Solution: Given: Let mw = mass of both wheels of bicycle Let mf = mass of frame of bicycle Let v =…

Q: Question 5. Assume the amount of sunlight falling on the land where the owl pellets were collected…

A: Given :- sunlight energy =4500 kcal/m² / day.

Q: Physical Science Exam A disadvantage of using hydroelectricity is O equipment corrosion O. it causes…

A: We know that the main disadvantage of using the hydroelectricity are mentioned as below. 1) It…

Q: Find the following. %3D 24.4 m/s Angle 0 13.1 m/s

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Q: List at least 3 possible alternative source of energy here in the Philippines.

A: The alternative sources or renewable sources of energy are the energy resources that are renewed…

Q: In a double-slit experiment, the distance between slits is 0.5.0 mm and the slits are 2.0 m from the…

A: Given: Distance between slits and screen (D) = 2.0 m. Distance between both slits (d) = 0.5 mm. =…

Q: The force of the atmosphere at sea level against the outside of a 10 m2m2 store window is about 1…

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Q: 11. A beam of light passes from air into water, striking the interface with an incident angle of…

A: Since you have been posted multiple questions. SO we are solving only first question for you. If you…

Q: 1) In the lab you have investigated prisms. A laser beam that goes from left to right. Take a 3.0cm…

A: Given: The thickness of the glass slab is t=3 cm. The refractive index of the glass is n=1.5. The…

Q: How does hydro-electricity work? What are the advantages and disadvantages?

A: Introduction: There are several ways to generate electricity. Some of them are thermal powerplants,…

Q: What are intensive and extensive variables? Give examples.

A:

Q: What is the equivalent capacitance, in nF, of the following capacitor network? C1 6.8 nF C2 2.7 nF…

A: Given , C1 = 6.8 nF C2 = 2.7 nF C3 = 5.7 nF In the given circuit, C1 and C3 are in series.

Q: An underground storage tank at a service station leaks into a water table.  A soluble component of…

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Q: Which is denser, something having a density of 1000 kg/m3 or something having a density of 1 g/cm3?…

A: The density of the object 1,

Q: Exercise 4. Gravitational potential energy Three 5 kg masses are arrange to form an equilateral…

A: Gravitational potential energy of two masses U = Gm1 m2 /r