A galaxy moving away from the earth has a speed of 0.0100c. What wavelength do we observe for an ni =7 to nf =2 transition for hydrogen in that galaxy?

Q: A 15-turn square coll of side 20cm lles In xy-plane and carrles SA current in counterclockwise direc...

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Q: The following classical curves have been studied by generations of mathematicians. Use analytical me...

A: Given:-               An interior point c of the domain of f at which f' (c) =0 it gives that       ...

Q: 91. ssm At 20 °C the densities of fresh water and ethyl alcohol are, respectively, 998 and 789 kg/m³...

A: Given values: Density of water, ρw =998 kgm3, Density of alcohol, ρal =789 kgm3 .

Q: A wooden crate with m = 1kg slides on a horizontal surface towards a wall as shown In the figure. Th...

A: Given Mass (m)                                  = 1kg Velocity vo                            =-5 m/s...

Q: Let G(u, v) = (3u + v, u - 2v). Use the Jacobian to determine the area of G(R) for: (a) R = [0, 3] x...

A: To find the Jacobian,  G(u,v)=(3u+v, u-2v)where, x=3u+vy=u-2vJ(G)=∂x∂u∂x∂v∂y∂u∂y∂v=∂x∂y∂u∂v-∂x∂y∂v∂u...

Q: a) In Figure 4, R1 = R1 2, R2 = R2.= R3=R3, R4 = 75 Q and the ideal battery has em: = 10 V. [05] I. ...

A: In the figure given R2, R3 and R4 are in parallel combination1Rp=1R2+1R3+1R4Rp=R3R4+R2R4+R2R3R2R3R4R...

Q: The longest wavelength of light that will cause emission of photoelectrons from a certain metal surf...

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Q: Give 5 examples, withillustrations, in everyday lifein which the concepts ofrotational kinematics an...

A: Given:  The examples of the rotational kinematics in the everyday life is listed below.

Q: A car weighing 17.8kN rounds a curve of 61 m radius banked at an angle of 30o. The f between the tir...

A: The weight of the car is 17.8 kN. weight is defined as W=mgm is the massg is acceleration due to gra...

Q: For the set of parametric equations x=cos(At+B), y=sin(At+B): a) Graph the curve, including orientat...

A: Given: The parametric equations are  x=cos(At+B), y=sin(At+B). Introduction: The parametric equation...

Q: Obtain the equations of motion for the motion of a particle of mass m in a potential V(r,θ,ϕ) in sph...

A: The lagrangian of a particle is defined as L=T-VT is the kinetic energy of the particleV is the pote...

Q: Callisto, a moon in a circular orbit around Jupiter, takes 16.69 Earth days to orbit with the radius...

A: This is a question from Astrophysics. To solve this problem, We are going to use Kepler's 3rd Law of...

Q: When n=1.5, k=0.1 and v=1014 Hz. Find (a) the wavelength inside the material and (b) the propagation...

A: (a) Given: The values of the parameters are n=1.5, k=0.1, and v=1014 Hz. Introduction: Wavelength is...

Q: n object of mass m1 hangs from a string that passes over a very light fixed pulley P1 as shown in th...

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Q: Evaluate the integrals

A: Given: ∫07∫02∫04-q2qr+1dp dq dr

Q: Sketch a qualitatively accurate graph of G vs. T for a pure substance as it changes from solid to li...

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Q: Use the worked example above to help you solve this problem. A skier starts from rest at the top of ...

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Q: Find I in the circuit shown below under dc conditions

A: For DC supply, capacitor acts as an open and inductor acts as a short. So, the circuit can be furthe...

Q: Find the moment of mass for solid about xy-plane in the first octant which bounded by xy-plane, xz-p...

A: The solid is bounded by x y-plane, x z-plane, z+y=2 and x=y in first octane. The density function is...

Q: The body of an MaS capacitor is N type. Match the "charge" diagrams (I) through (5) in Fig. 5-35 to ...

A: The body of an MaS capacitor is N type. (a.) Flat band: The flat band diagram is flat . There is no ...

Q: For ultrarelativistic particles such as photons or high-energy electrons, the relation between energ...

A: Given: The length of box is L=10-15 m. The formula to calculate the energy of electron is, E=hcλ H...

Q: hello everyone, i need your help on this question: A thermoelectric plant whose nominal power is 800...

A: We know that,Steam-Generation temperature , TH=585° KRiver Temperature, TC=295° Kmaximum possible th...

Q: (III) A bullet of mass m = 0.0010 kg embeds itself in a wooden block with mass M = 0.999 kg, which t...

A: Given Bullet mass (m) = 0.0010 kg Block mass (M) = 0.999 kg  Distance (x)      = 0.050 m Tension (K)...

Q: In your job as a mechanical engineer you are designing a flywheel and clutch-plate system like the o...

A: Given: E=3800 J  

Q: 6. Describe the motion of a particle of mass m, constrained to move on the surface of a cylinder of ...

A: a, θ, z be the cylindrical coordinates. Potential energy. V=12kr2=12ka2+z2 Kinetic energy. T=12mz˙2+...

Q: 3.0 eV photons excite atoms in a gas from their ground state to the n = 3 excited state. The atoms a...

A: The energy of the incident photon is 3.0eV. As the electron absorbs this energy, it gets excited to ...

Q: This problem describes one experimental method for determining the moment of inertia of an irregular...

A: The law of conservation of energy states that the initial total energy of the system is equal to the...

Q: Given c = sin(a − b), b = ae2a, find dc/da.

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Q: The figure below shows a vertical projectile.  If the projectile's initial velocity (v1) is 200 m/s ...

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Q: What is the gravitational acceleration on the surface of a planet that has twice the mass of the Ear...

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Q: (a) What is the ratio of the strength of the gravitational force to that of the strong nuclear force...

A: Given information: Need to find the ratio between a gravitational field with other fields.

Q: A derrick boat approaches a two-mile marker 100 m ahead at a velocity of 35.0 m/s. The pilot reduces...

A: Part-a given: The distance travelled by the boat s = 100 m. The initial velocity of the boat u = 35...

Q: Q:5 Q In the modern physics lab, a student is performing Hall effect experiment, a potential (VH) ...

A: Given: The potential is 1.83 mV.           The thickness of the foil is 100 mm.           The value ...

Q: Launching downhill An ideal projectile is launched straight down an inclined plane as shown in the a...

A: (a) Prove :               The greatest downhill range is achieved when the initial velocity vector a...