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A Fresnel zone plate is prepared with a drawing program and printed on a laser printer. The printed zone plate has a central zone diameter of 5.00 cm. A photograph of this zone plate is to be reduced on high-resolution film to give a working zone plate with a 1.00 m focal length. If this zone plate is to be used with light of 633 nm, what factor of reduction is required?
A diffraction grating has 3283 lines/cm. Light that contains all wavelengths between 480 and 659 nm shines on the grating
Suppose a 76 kg person hangs vertically from a nylon rope. What radius must the rope have if its fractional increase in length is to be the similar as that of the spider's thread.
The rms speed of a sample gas is increased by 2 %, What is the percent change in the temperature of the gas
A heavy piece of machinery is raised by sliding it a distance d = 15.0 m along a plank oriented at angle ? = 30° to the horizontal, How far is it moved vertically and horizontally
Pennies today are copper-covered zinc, What are the total positive charge and total negative charge in a solid copper penny that is electrically neutral
A hypothetical diatomic molecule is composed of two identical atoms of mass 12 u. what is the rotational inertia
A 1089-kg car and a 2210-kg pickup truck approach a curve on the expressway that has a radius of 229 m. find the normal force on the car to the highway surface
A 36g glass thermometer reads 20.6C before it is placed in 104mL of water. What is the original temperature of the water
A freight company uses a compressed spring to shoot 1.7 kg packages up a 1m high frictionless ramp into a truck. The spring constant is 241 N/m and the spring is compressed 33 cm.
A guitar string with a mass of 10.0 g is 1.00 m long and attached to the guitar at two points separated by 61.6 cm. find the frequency of the replacement string's first harmonic
Tarzan swings on a 28.0-m-long vine initially inclined at an angle of 37.0° with the vertical. What is his speed at the bottom of the swing if he starts from rest
Nichrome is a nickel chromium allot commonly used in heating elements. suppose you have a coil of nichrome wire that is 25.0 m long, what is the resistance of the Nichrome wire
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