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A prescription for a corrective lens calls for + 3.20D . The lensmaker grinds the lens from a "blank" with n = 1.56 and a preformed convex front surface of radius of curvature of 35.0cm .
Part A. What should be the radius of curvature of the other surface? Express your answer to two significant figures and include the appropriate units.
A hoodlum throws a stone vertically downward with an initial speed of 12.2 m/s from the roof of a building, 25.0 m above the ground. What is the speed of the stone at impact
A 2.0 kg mass starts from rest and slides down an inclined plane 0.80 m long in 0.50 s. What net force is acting on the mass along the incline?
An air puck of mass m1 = 0.21 kg is tied to a string and allowed to revolve in a circle of radius R = 0.8 m on a frictionless horizontal table. What is the horizontal force acting on the puck
A spring has an unstretched length of 12cm. When an 80 g ball is hung from it, the length increases by 4.0 cm.Then the ball is pulled down another 4.0 cm and released. a) What is the spring constant? b) What is the period of the oscillation?
A ball is thrown from the roof of a 22m tall building with an initial velocity of magnitude 12 m/s and directed 53.1 (o) above the horizontal. What is the magnitude of the ball's velocity just before it hit the ground
Question on center of gravity Discover speed of each block
In fact, the increased normal force at these large angles makes force of friction too large to move the lawnmower at all.
A 20.0- rock is sliding on a rough, horizontal surface at 8.00 and eventually stops due to friction. What is the total work they do on the supertanker
A 2 meter straight wire carrying 5 Amp current runs horizontally and experiences 8 Newton horizontal force while in a 2 T magnetic field. Obtain direction of the magnetic field with respect to horizontal
A concave makeup mirror is designed so that aperson 23 cm in front of it seesan upright image magnified by a factor of two. What is the radius of curvature of the mirror in meters?
you are given a spherical mirror and wish to determine its properties. you place an object on its axis 39.30 cm in
What energy is released (in MeV) during a reaction in which 1.67 x10^-25 kg of material is converted to energy?
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