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A helium-neon laser (wavelength = 630 nm) is utilized in a single-slit experiment with a screen 2.3 m away from the slit. If the slit is 0.13 mm wide, what is the width of the central bright fringe on the screen? Gauge this width using the locations where there is destructive interference.
A 10.0-m long wire whose total mass is 39.5 grams is under a tension of 577N. Where do the pulses first meet
Students in a physics lab are to determine the specific heat of copper experimentally. They place 0.150 kg of copper shot into boiling water, what is the specific heat of copper
A sled weighing 200 N is held in place by static friction on a 15? incline, What is the coefficient of static friction between the sled and the incline
A 0.200 T magnetic field is directed along the positive x axis. A magnetic field of unknown magnitude acts along the positive y axis, Find the magnitude of the unknown magnetic field
Red light of wavelength 670.0 nm produces photoelectrons from a certain photoemissive material. What is the material's work function
q1. if the focal length of the concave lens is -7.50 at what distance from the lens must an object be placed so that
A pulley system has an efficiency of 87.5 percent. How much of the rope must be pulled in if a force of 648 N is is needed to lfit a 150kg desk 2.46m .
A "spinout" type carnival ride has a diameter of 4.0-m and rotates 3.0 times every 5.0 seconds. Find the linear speed of the rider
A worker pushes horizontally on a large crate with a force of 185 N, and the crate is moved 4.4 m. How much work was done
Object of masses: mass1= 4.000 kg and mass2=9.000 kg, are connected by a light string that passes over a frictionless pulley. Determine the acceleration of each object
An unstrained horizontal spring has a length of 0.25 m and a spring constant of 180 N/m. Two small charged objects are attached to this spring, one at each end.
A Carnot engine with a hot-reservoir temperature of 500 degrees C has a thermal efficiency of 26.3%. What is the cold-reservoir temperature in degrees C
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