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(1) A concave mirror is constructed so that a man at a distance of 26 cm from the mirror sees his image magnified 2.0 times.
(a) What is the radius of curvature of the mirror?
(2) A convex mirror in a department store produces an upright image 0.55 times the size of a person who is standing 250 cm from the mirror.
(a) What is the focal length of the mirror?
A certain amount of oxygen gas occupies a volume of 12 liters when its temperature is 20 oC and its pressure is 1 atm. Calculate the number of grams of oxygen:
A blackbody is emitting radiation at a rate of 25 W at 27oC. what is the rate of emission
Long Straight Wire A long straight wire has fixednegative charge with a linear charge density of -3.1 nC/m. The wire is to be enclosed by a thin,nonconducting cylinder of outside radius 1.6 cm, coaxial with the wire.
A cyclotron is sometimes used for carbon dating. Carbon-14 andcarbon-12 ions are obtained from a sample of the material to bedated and are accelerated in the cyclotron. If the cyclotron has amagnetic field of magnitude 2.30 T, what is the differe..
a uniform electric field exists between two conducting plates separated by 1.9 mm. a dust grain with charge 65 nc nano
Mitch is driving the Batmobile (which he stole). He is driving at a constant velocity of 40 m/s. What is the acceleration of the Batmobile
the rotating loop in an ac generator is a square 25 cm on each side with 320 turns of wire in the loop. it is rosted at
A spring is stretched a distance of Dx = 40 cm beyond its relaxed length. Attached to the end of the spring is an block of mass m = 12 kg, which rests on a horizontal frictionless surface. what is the speed of the attached object
a charged oil droplet falls 4 mm in 18.0 s at terminal speed in the absence of an electric field. the specfic gravity
1. a straight wire of length 0.62 m carries a conventional current of 0.8 amperes. what is the magnitude of the
A lens appears greenish yellow (λ = 570 nm is strongest) when white light reflects from it. What minimum thickness of coating (n = 1.33) do you consider is used on such a glass (n =1.52) lens? Why?
Estimate the torque necessary to turn the impeller if the fluid is water. What will the impeller rotation speed become if the shaft breaks?
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