An owl has good night vision because its eyes can detect a light intensity as small as 5.0 x 10-13 W/m2. What is the minimum number of photons per second that an owl eye can detect if its pupil has a diameter of 8.1 mm and the light has a wavelength of 587 nm?

Q: How much work must be done on the particle by the external agent? (in J)

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Q: (a) What is the available energy content, in joules, of a battery that operates a 1.3 W electric…

A: Part (a) Calculation:Time in seconds=21×30.44×24×3600=55,209,600 seconds…

Q: If a proton and electron are released when they are 2.0  m apart, find the initial acceleration of…

A: Distance between the particles, r = 2 mCharge on an electron, qe = 1.6 × 10-19 CCharge on a proton,…

Q: you have ignored the directions of Vf and direction of acceleration. please inlude this information…

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Q: The figure below shows equipotential contours in the region of space surrounding two charged…

A: The change in potential energy(∆U) of a charge q moving from point 1 (with potential V1) to point 2…

Q: If a proton and an electron are released when they are 4.00 x 10-10m apart, find the initial…

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Q: 20 30 Determine the total energy (in J) stored in the system if C = 12.66 mF and the potential…

A: Given data The capacitance value is: C = 12.66 mF = 0.01266 F The potential difference between…

Q: A 9 kg particle is in a potential given by U(x) = 2 x^4 - 6 x^2 - -2 x + 8 (J). Calculate the…

A: The force can be represented as, F=-dUdxma=-dUdxa=-1mdUdx

Q: in a straight line with a 6° Omis. I t 'enters underges migh along the same straight line, An…

A: Let , the initial velocity be denoted by 'u' , the final velocity be denoted by 'v' , the time taken…

Q: Determine the total energy (in J) stored in the system if C = 12.4 mF and the potential difference…

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Q: 6) The work done by the force field F moving along the line segment from (0, 0) to (2, 1) is: a) b)…

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Q: (a) find the gravitation field as a function of r. (b) find the gravitation potential as a function…

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Q: How much work is needed to move a proton from a point with a potential of -100V to a point where it…

A: Given, potential, V1 = -100 VV2 = -50 V

Q: True of false ? The stopping power is a function of the charge of the particle, energy of the…

A: Here given the stopping power of the particle.We have to define the statement true or false.

Q: Two objects (m,-5.50 kg and m,- 2.70 kg) are connected by a light string passing over a light,…

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Q: How would you rearrange that equation for m_0

A: R = V(L/D)Cln (11-mf/mo)DCRVL= ln(11-mf/m0)11-mf/m0 = eDCRVL

Q: A particle begins to move on top of a hemispherical surface. Where will it leave the surface?

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Q: What is the definition of a vector potential?

A: Given: The Vector potential is defined below.