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While looking at her image in a cosmetic mirror, Dina notes that her face is highly magnified when she is close to the mirror, but as she backs away from the mirror, her image first becomes blurry, then disappears when she is about 20.0 cm from the mirror, and then inverts when she is beyond 20.0 cm. Based on these observations, answer the following questions about the mirror.
(a) What type of mirror does Dina have? concave or convex?
(b) What is the focal length of the mirror?
cm
(c) What is the radius of curvature of the mirror?
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What are the x and y acceleration components of a 5 kg particle subject to Force 1 (F1x = 4.6 N and F1y= -2.1 N) and Force 2 (F2x=-2.8 N and F2y= 5 N)
The three charged particles in the figure below are at the vertices of an isosceles triangle (where d = 1.60 cm). Taking q = 8.20 µC, calculate the electric potential at point A
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You're carrying a 4.0-m-long, 25 poles to a construction site when you choose to stop for a rest. You place one end of the pole on a fence post and hold the other end of the pole 35 from its tip. How much force should you exert to keep pole motionles..
Gas flows from a reservoir at 2000 psi pressure into a well at 1 atm pressure, what is the actual volumetric flow in the well
During a particular car crash, it takes just 0.18s for the car to come to a complete stop from 50 km h -1. At what rate is the car accelerating during the crash
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