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To fit a contact lens to a patient's eye, a keratometer can be usedto measure the curvature of the cornea-the front surface of theeye. This instrument places an illuminated object of known size ata known distance p from the cornea, which then reflects some lightfrom the object, forming an image of it. The magnification M of theimage is measured by using a small viewing telescope that allows acomparison of the image formed by the cornea with a secondcalibrated image projected into the field of view by a prismarrangement. Determine the radius of curvature of the cornea when p=29.0 and M=0.0160.
___________mm
What is the minimum soap-film thickness (n = 1.33) in air that will produce constructive interference in reflection for red (? = 644nm ) light
A factory worker pushes a 30.2kg crate a distance of 5.0m along a level floor at constant velocity by pushing downward at an angle of 30? below the horizontal. What is the total work done on the crate
A student sits on a rotating stool holding two 2.0-kg objects. When his arms are extended horizontally, Find the new angular speed of the student
A proton with a velocity in the positive x-direction enters a region where there is a uniform magnetic field B in the positive y-direction, The electric field should be in the...which direction
The work done by an engine equals one-half the energy it expels to a cooler at 0C. what is the temperature of the heater
A step-up transformer has 26 turns on the primary coil and 770 turns on the secondary coil. what input current and voltage are needed
Two point charges are on the y-axis. A 6.0 µC charge is located at y = 1.50 cm, and a -2.46 µC charge is located at y = -1.40 cm. (a) Find the total electric potential at the origin. (b) Find the total electric potential at the point having coordi..
A block of mass m is attached to a spring (spring constant k)which is attached to a wall, find the amplitude of the resulting simple harmonic motion?
A candle of height 2.0 cm is placed 10.0 cm in front of a diverging (concave) lens of focal length -6.0 cm. Where is the image of the candle
Consider a balloon being filled up with oxygen. You have approximately 30 moles of oxygen gas in this balloon with volume 1.3m3, what is the temperature of the molecules
A balloon carrying a basket is descending at a constant velocity of 20.0m/s. At the instant the rock hits the ground, how far is it from the basket
If the dummy is thrown forward with force of 130.0 N while simultaneously being hit from the side with a force of 4500.0 N, illustrate what force will the sensor report?
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