A wavelength of 4.653μm is observed in a hydrogen spectrum for a transition that ends in the nf = 5 level. What was ni for the initial level of the electron?

Q: How do the allowed orbits for electrons in atoms differ from the allowed orbits for planets around t...

A: The energy of the electron in the nth orbit is given as: En(electron) =-Rchn2                 ------...

Q: Two-lens systems. In the figure, stick figure O (the object) stands on the common central axis of tw...

A: Given: Object distance of lens1 u1=+26cm. The distance between two lens d = 17cm.  The focal length ...

Q: 4. Two wires carry currents in the directions shown. Both currents are initially equal and are incre...

A: Magnetic field because of a infinite current carrying wire at a distance r is given by  B = B=μoi/2π...

Q: Q4/A: 400 mm The spring attached to the mass of m = 0.5 kg sliding collar has a stiffness of k = 0.2...

A:

Q: One of the events at the Olympic Games is the "hammer throw". Confusingly, the "hammer" is not actua...

A: Given:No. of revolution, n=2time taken,t=1.50sfrequency,f=ntf=21.50f=1.33 Hz

Q: Ana holds a red laser, emitting at 632.8 nm, pointed toward Braden. Initially both are at rest. a) A...

A: When an object is moving towards or away from another object, there is change in wavelength of the s...

Q: I'm not sure how to work this problem. The problem gives an answer of Itot=Icm+Md^2=18.1 kg*m^2 for ...

A: (a) Let a denotes the length, b denotes the width of the rectangle, m denotes the mass, Ic denotes t...

Q: The following table shows the number of students in three different degree programs and whether they...

A:   We have to find the probability that a randomly selected student is an undergraduate:Probability t...

Q: All questions please

A:  

Q: 5 - Write down the Maxwell's equations in vacuum. Explain the physical meaning of each equa- tion. T...

A:

Q: A point charge of 30nC is located at the origin while the plane y = 3 carries a charge of 10 nC/m². ...

A: given is a point charge with charge 30 n C AND  plane at y = 3  with charge 10 n C /m2    we have to...

Q: An electromagnetic wave with frequency 5.70 * 10^14 Hz propagateswith a speed of 2.17 * 10^8 m/s in ...

A: Given, frequency f =5.70×1014 HzSpeed v =2.17×108 m/s

Q: Define potential energy and develop mathematical form for potential energy due to gravity. Also desc...

A: Potential energy, stored energy that depends upon the relative position of various parts of a system...

Q: a) Sketch the direction of the induced magnetic field from the circuit. b) Sketch the direction of t...

A: Faraday's Law of Electromagnetic Induction Whenever there is a change in the magnetic field linked ...

Q: Can someone help ASAP?

A: Given that In region-A Three positive charge carriers are moving in right direction and two negative...

Q: half life? please help and show steps thank you! Show transcribed image text A certain isotope of th...

A: Given Hall-life of isotope to  = 0.646 s Isotope speed (V)           = 0.800 c 

Q: Need help on this question.

A: When a current is flowing through a conductor, it creates a magnetic field. If the current distribut...

Q: (S%) Problem 11: A bank of batteries, total emf ɛ = 7.5 V, is in a circuit with resistor R= 120 k2, ...

A: Since it is multipart queasiness,  the solution for the first three parts is provided here.

Q: Find the mass of the lamina occupying the region R= {(x,y)ER?:x²+y²s 4,xs 0,ys 0} given that the mas...

A:

Q: Consider steady, incompressible flow through two identical pumps (pumps 1 and 2), either in series o...

A: The volume flow rate through the two pumps in series is equal to V1+V2This statement is false, Answe...

Q: a) Draw a graph that shows the relationship between the frequency of the incident radiation and the ...

A: Given information: The graph of frequency vs kinetic energy: From the above graph we can identify t...

Q: Given V = 10r-2 sin(0) cos(4) V: %3D Find the electric flux density at A(2,90°,0°). а. b. Calculate ...

A: The electric potential is given as, V = 10r-2sinθcosϕ V (or) V = 10sinθcosϕr2 V TO DETERMINE: (a) Th...

Q: Three identical light bulbs are connected as shown below along with a battery of emf E and a switch ...

A: Here, the brightness of bulbs is proportional to the power delivered to the bulb. power P =( i^2 )R ...

Q: Consider a mass–spring system where a 4 kg mass is attached to a massless spring of constant k 196 ...

A: Given data: The mass is m=4 kg. The spring constant is k=196 N/m. The distance is x=25 cm. Part (a...

Q: 50Vhas one of the longest known radioactive half-lives. In a difficult experiment, a researcher foun...

A: N=Noe-λtNo is the number present at t=0 and λ is the decay constantλ=0.693t12The radioactive dating,...

Q: Z Your answer is partially correct. Try again. A mole of atoms is 6.02 × 1023 atoms. How many moles ...

A: 1 atomic mass 1u = 1.673*10^-27 kg.

Q: The two plates of a parallel-plate capacitor each have area1.20 m2, are 4.50 mm apart, and initially...

A: Given: The area of the plates is 1.20 m2. The distance between the plates is 4.50 mm. The power supp...

Q: The star Betelgeuse has surface temperature 3590 K and can be regarded as a blackbody. (a) Find the ...

A: The temperature of the Betelguese is given as T=3590 K (a). According to Weins displacement law, the...

Q: Consider the circuit shown in the figure below, where C = 6.00 µF, C2 = 2.00 µF, and AV = 12.0 V. Ca...

A: C1 = 6.00 μF = 6.00 × 10- 6 F C2 = 2.00 μF = 2.00 × 10- 6 F ΔV = 12.0 V  

Q: 18. An intelligent alien living on a planet in the solar system orbiting Alpha Centauri, the nearest...

A:

Q: A long solenoid has 585 turns per meter and a cross-sectionalarea of 2.70 cm2. The current through t...

A:   Given :n = 585 turns A =2.70 cm2A =2.70 ×10-4 m2 I = 0.600 t2 A/s2R =0.600 Ω 

Q: Part f

A:

Q: Two light bulbs haveconstant resistances of 400 Ω and 800 Ω. If the two light bulbs areconnected in ...

A: Equal currents will flow through the resistors connected in series. When two resistors of resistance...

Q: Transfer the point P (6.32, 108.43°, 3) into spherical coordinate a) (5, 65.62°, 106.43) b) (6, 66.6...

A: we are given points  ρ =6.32 ,ϕ = 108.430 ,z = 3so we need  to find : r , θ, ϕ

Q: Unpolarized sunlight in air shines on a block of a transparent solid with index of refraction 1.73. ...

A: Given: The refractive index of transparent solid n2=1.73 The refractive index of air n1=1    

Q: Two objects traveling on a frictionless surface have a head on collision and then stick together. Th...

A: Two objects travelling on a frictionless surface have an head on collision and stick together. This ...

Q: A harmonic oscillator of mass m and angular frequency w is in the initial state of wavefunction p(x,...

A: WE ARE  given a wave function .  we need to obtain constant  wave function with time  Heisenberg pri...

Q: 5.) In the textbook and workbook we saw that an electron in the n = 3 energy level yielded three wav...

A: Given: The number of wavelengths yielded by n=3 are 3. The number of wavelengths yielded by n=4 are ...

Q: Part C

A:

Q: 10. Block 1 with a mass of 1.0 kg slides down a frictionless ramp with a height of 3.0 m and cllides...

A: Given, Mass of block 1 is 1.0 kg height is 3.0 m

Q: The side of a thin lens that faces the object is convex andhas radius of curvature 15.0 cm. The othe...

A: R1=15cmR2=-25cmrefractive index n=1.55 we know the focal length of lens 1f=n-11R1-1R21f=1.55-1115-1-...

Q: A fireworks shell is launched in a level field at an angle of 70 degrees with an initial speed of 10...

A: Given data, Initial speed = 100 m/s Angle of the projectile = 70o

Q: 6. The motion of a particle connected to a spring is described by x(t) = 10 sin(rt). When the partic...

A: Given, x(t)=10sinπt , When the particle is located at half the amplitude. that is, x=A2 So velocity ...

Q: Planet X has four times the diameter and five times the mass of earth. What is the ratio gx:ge of gr...

A: Here we have to use a basic formula here.

Q: Which determines the frequency of a sound wave? A) Amplitude B) Speed C) Source D) Medium

A: Let's understand each term first. Amplitude:it signify the intensity of the wave.  Speed: it is medi...

Q: Helppp!!

A:

Q: Mantles for gas lanterns contain thorium, because it forms an oxide that can survive being heated to...

A: Given: The half life time of thorium is t1/2=1.405×1010 y. The mass of thorium in lantern is m=300 ...

Q: Explain the role of research and statistics in clinical psychology.

A:   Clinical psychology is the psychological specialty that provides continuing and comprehensive ment...

Q: Please solve the last three sub-parts. please solve last three sub-parts d,e,f accurate necause i am...

A: Given the electron enters electric field E with velocity v, E=2.5×105 N/Cv=1.5×107   m/s and the len...

Q: A spherical air bubble in water can function as a lens. Is it a converging or diverging lens? How is...

A:   A spherical drop of water acts as a converging nature and f is proportional to the radius of curva...