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A non reflective coating (n = 1.34) covers the glass (n = 1.52) of a camera lens. Assuming that the coating prevents reflection of a specific wavelength (vacuum = 515 nm), find the minimum nonzero thickness that the coating can have.
Suppose a single electron orbits about a nucleus containing two protons (+2e), as would be the case for a helium atom from which one of the naturally occuring electrons is removed, Determine the magnitude of the electron's centripetal acceleration
Two circular parallel plates having charges of equal magnitude but opposite sign are separated by 11.58cm. Each plate has a surface area of 0.0105m^2. the magnitude of the electric field between the plates is 5.185kN/C. An electron is released fro..
The maximum speed of a 4 kg mass attached to a spring is 0.68 m/s, and the maximum force exerted on the mass is 12 N. What is the frequency of this system
A physics student on Planet Exidor throws a ball, and it follows the parabolic trajectory shown in the figure. The ball's position is shown at 1.0 s intervals until t =3.0 s. At t = 1.0 s the ball's velocity has components Vx= 1.5 m/s, Vy = 3.0 m/s.
An AC adapter for a telephone-answering unit uses atransformer to reduce the line voltage of 120 V (rms) to a voltageof 8.5 V. how many turns are thereon the secondary (output) coil
A portable x-ray unit has a step-up transsformer, the 120 V input of which is transformed to the 100kV output needed by the x-ray tubr, what is the number of loops in the secondary
A plastic cylinder of length 38 cm its ends ground to convex (from the rod outward) spherical surfaces, each having radius of curvature 19 cm, How far will the image of the object lie from the right end
question a 6.00 kg bowling ball is rolling at 9.00 ms. it collides with a 1.50 kg bowling pin at rest. after the
A 0.2 kilogram toy car rolls down ramp and reaches a speed of 6 meter per second. Compute at what speed do the two cars move after the collision
How far from a -6.20 microcoulombs point charge must a 2.30 microcoulombs, Calculate the distance in meters
when a person visits the local tanning salon they absorb photons of ultraviolet light uv to get the desired tan. what
Two spheres with masses m1 = 820 kg and m2 = 830 kg are separated by 0.230 m. What is the net gravitational force from them on a 3.0 kg sphere located 0.161 m from m1 and 0.069 m from m2? Use a + sign if the direction is towards m2 and a - sign if..
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