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Problem: A prescription for a corrective lens calls for + 3.50D. The lens maker grinds the lens from a "blank" with n = 1.56 and a preformed convex front surface of radius of curvature of 31.0cm.
Part A: What should be the radius of the curvature of the other surface?
I need help to find the radius of the curvature of the other surface.
Suppose that an average city uses about 8.5 x 1013 Joule of energy in a day. Find how much fuel would be needed to power an average city for one day
A 90.0- and a 60.0- resistor are connected in parallel. Whenthis combination is connected across a battery, the currentdelivered by the battery is 0.152 A. When the 60.0- resistor is disconnected, the currentfrom the battery drops to 0.0642 A.
A person walked a 400 m with a constant speed of 1 m/s, then he increased his speed and walked another 400 m with 2 m/s, what is the average speed during his trip
A rock is thrown upward from the level ground in such a way that the maximum height of its flight is equal to its horizontal range R. At what angle is the rock thrown
A Nextrad wave of 2.70 GHz was sent out. If it took 3.75 ms to get the returning signal from a storm weather system, how far away is the storm
Your task in physics laboratory is to make a microscope from two lenses. One lens has a focal length of 2.4cm , the other 1.0cm. What is the magnification of your microscope
A fancy sports car passes Big Ben at a speed of 0.2 c. What time interval will the driver measure for a one-second interval on the large clock
a hockey puck with mass 0.160kg is at rest on the horizontal frictionless surface of a rink. a player applies a force
Robert has just bought a new model rocket, and is trying to measure its flight characteristics. how much work is done by the drag force on the rocket during its ascent
Capacitors C1 = 4.0 µF andC2 = 2.0 µF are charged as aseries combination across a 60 V battery.The two capacitors are disconnected from the battery and from eachother.
How many liters of gasoline would give the same mechanical energy given that each liter provides 8.50x10^6 J of mechanical energy.
two workers hold a heavy pail. its mass is unknown. one worker exerts a 220n force at 137 degrees from vertical. the
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