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: the test load is q⁰ = 4 milliculons whereas the potential at point A is 6V and the potential at…

A: Given: test particle charge q0= 4*10-3 C potential of point A (VA) = 6 V potential of point B (VB) =…

Q: A 55 kg skateboarder (with the board) wants to just make it to the upper edge of a "half-pipe" with…

A: i) Let the mass of the skateboarder with the board be denoted by m. If the skateboarder is treated…

Q: A charged dust speck with mass, m = 2.2 g, loses 28 mJ of kinetic energy as it moves aross an…

A:

Q: Why are birds not electrocuted by sitting upon a high potential power line?

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Q: where gis the gravita- th on the Earth's

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Q: In nuclear fission, a nucleus splits roughly in half. What is the potential 7 ×10-14m from a…

A: Potential (V) at a distance r from a point charge (Q): Electric potential at a distance r from a…

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: Prove that the static energy of a proton is 1000 Mev

A: This problem can be solved using the Einstein mass energy Equivalence formula.

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

A: Fe=14π∈0q1q2r2q1=e; q2=-e ;e=1.6×10-19 ; r=2 ;14π∈0=9×109Fe=-9×109×e24=-5.76×10-29Fe=5.76×10-29(sign…

Q: A 7 kg particle is in a potential given by U(x) = 3 x^4 - 1 x^2 - 4 x + 8 (J).  Calculate the…

A: Given: The mass of the particle m = 7 kg. The function of potential energy U(x) = (3x4-x2-4x+8) J.

Q: Show that the Force of Gravity is conservative.

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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…

A:

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: (a) Find the potential difference ΔⅤe required to stop an electron (called a "stopping potential")…

A: The stopping potential of the electron can be calculated using given steps.Given:

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: Consider the same charge q=1C moving in the same field, E=2 N/C in the x direction, between the same…

A: The force on the charge can be calculated as below,

Q: Three electrons are located at the vertices of an equilateral triangle with side lengths of 4 cm.…

A: Given:-  Three electrons are located at the vertices of an equilateral triangle with side lengths of…

Q: 4-158. Determine the magnitude of the equivalent resultant force and its location, measured from…

A: We have to find the magnitude of equivalent resultant force and its location measured from point O.…

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

A:

Q: How much work is needed  to assemble an atomic nucleus containing three protons (such as Li) if we…

A: Charge on proton = e = 1.6 × 10-19C  Side of equilateral triangle =a= 2.00 × 10-15 m  Work done in…

Q: A proton accelerates from rest in a uniform electric fe d of 626 N/C. AL Seme fater time, its speed…

A:

Q: Electrical potential in a region of space is Vlx.y,2l= ALx²- By 2+2?) A is a costant. 1) Find the…

A: solution is given by

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

A:

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

A:

Q: Compute the electric potential energy of a +5 C and a -7 C with distance of 3 m.

A:

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: pls help me for HW thank u have a nice day=)

A: This graph below shows the charging of a capacitor .

Q: Analyzing Graphs Analyze the motion of the body as shown in the following graphs. d velecity:…

A: From the graph its clear that  d∝t2or d=Ct2             here, C is some constantthen,Velocityv=dddt=…

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

A:

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

A: Let us consider the charge on proton & electron be (QP) & (QE) in coulomb and separated by a…

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: we only have a non-circular closed path when n = -2.

A: Let us consider (E) be the electric field and (V) be the potential having radial distance (r) which…

Q: Calculate the acceleration of the particle when it is at x = 1 m, in m/s2.

A: potential of particle is given as  U(x) = x4-7x2-3x+8 J The relation between force and potential is…

Q: How close together should two electrons get so that their electric potential energy would be 1…

A: The above problem can be solved as follows