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A single slit 1.0mm wide is illuminated by 500nm light. What is the width of the central maximum (in cm) in the diffraction pattern on a screen 4.0m away?
You are standing at a red light on SW 8th Street at 97th Avenue. The light turns green, find the work done on your car by the frictional force
As part of the safety investigation, two 1400 {rm kg} cars travelling at 23 {rm m/s} are crashed into different barriers. Find the average forces exerted on (a) car that hits a line of water barrels and takes 1.7 {rm s} to stop, and (b) car that hits..
A child slides down a slide with a 23° incline, Calculate the coefficient of kinetic friction between the slide and the child
A heat that goes into a particular carnot engine is 4.72 times greater than the work it performs. What is the engines efficiency
Calculate the y-component of the magnetic force.
What is the angular momentum of the moon about the Earth, The mass of the moon is 7.35 x 10^22 kg, the center-to-center separation of the Earth
The men's world record for the shot put, 23.12 m, was set by Randy Barnes of the United States on May 20; 1990.If the shot was launched from 6 ft above the ground at an initial angle of 42degrees, what was its initial speed.
A 4.3-kg solid sphere, made of metal whose density is 4700 kg/m3, is suspended by a cord. Find the density of the liquid
Consider a circuit. The three resistors are identical with R1 = R2 = R3= 160 ?, and the battery voltage is 50 V. What is the current through resistor R2?
A spring has force constant 8.3 Nm^-1. A 0.075kg mass is hung on the end of the spring.
A gas expands while 502 J of energy is added to it as heat. The expanding gas does 422 J of work on its surroundings.
Multiple-Concept Example 7 deals with the concepts that are important in this problem. Find the minimum coefficient of friction necessary to allow the penny to rotate along with the disk
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