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A stamp collector uses a lens with 7.5-cm focal length as a simple magnifier. The virtual image is produced at the normal near point (25 cm).
(a) How far from the lens should the stamp be placed?=______ cm
(b) What is the expected angular magnification?
Calculate the size of the average force. plan the force vectors with their tails at the left sphere
Monochromatic light ( = 630 nm) strikes a pair of slits at normal incidence, forming a double-slit interference pattern on a screen located 1.20 m from the slits. It shows the interference pattern observed on the screen. What is the slit separatio..
In a tungsten atom, what is the kinetic energy of an L-shell electron ejected by a photon that was created during the M-K shell transition of the atom?
A hunter aims directly at a target (on the same level) 101m away. If the bullet leaves the gun at a velocity of 203m/s, by how much will it miss the target.
A dockworker applies a constant horizontal force of 82.0N to a block of ice on a smooth horizontal floor, What is the mass of the block of ice
A ladder 6.10 m long leans against the side of a building. If the ladder is inclined at an angle of 76° to the horizontal, what is the horizontal distance from the bottom of ladder to the building.
You have a lens whose focal length is 12.7 cm. You place an object on the axis of the lens at a distance of 6.25 cm from it. How far is the object\'s image from the lens
A cylindrical container of inside diameter 0.6 m is filled with gasoline to a depth of 2 m. What is the mass of the gasoline?
In a certain RL time constant circuit, it takes 135 msec for the current to reach maximum after the switch is closed.
baseball toward home plate at 85 miles per hour with a spin of 1800 revolutions per minute. Explain how many rotations does it make on a path of 60 feet?
A luminous object 3.0 mm high is placed 200 mm from a convex mirror of radius of curvature 200 mm. Show that the (negative) image distance can be computed using a focal length of -100mm. Compute the image size?
What is the stopping distance of the car. What is the initial (horizontal) velocity of the ball.
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