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If you make multiple measurements of your height, you are likely to find that the results vary by nearly half an inch in either direction due to measurement error and actual variations in height. You are slightly shorter in the evening, after gravity has compressed and reshaped your spine over the course of a day. One measurement of a man's height is5 feet and5inches .Express his height in meters, using the appropriate number of significant figures.
An electron orbiting a hydrogen atom has an initial energy of -0.544 eV. The atom emits a photon, then absorbs a photon, What was the wavelength of the emitted photon
The nearpoint of an eye is 55 cm. A corrective lens is to be used to allow this eye to clearly focus on objects 25 cm in front of it. What is the power of the needed corrective lens?
Use graphical techniques to find out the direction of the dog’s resultant displacement vector. Give the direction of the resultant displacement in degrees (out of 360).
The average distance of the planet Mercury from the sun is 0.39 times the average distance of the earth from the sun
You are now studying a length of wire that has been coiled up to create a circular coil of 4 turns all arranged compactly, The loop has radius of 0.0240 m and a current of 49.5 A, What is the strength of the magnetic field at the center of the loop
A photon has an energy E and wavelength (lamda) before scattering from a free-rest electron. FInd the initial wavelength and the initial energy of photon
Calculate the specific heat of a metal from the following data. A container made of the metal has a mass of 3.1 kg and contains 16 kg of water
A woman at an airport is towing her 20.5 kg suitcase at constant speed by pulling on a strap at an angle of ? above the horizontal. What normal force does the ground exert on the suitcase
During the pitching motion, a baseball pitcher exerts an average horizontal force of 274 Newton against the 0.158 kilogram baseball while moving it through a horizontal displacement of 1.3 meter before releasing it
A 300 lb bungee jumper wants to jump from the top of a 230 ft high bridge and be able to just touch the water below. what should the bungee cord's relaxed length, l, be for this jump
An insect 1.4mm tall is placed 0.8mm beyond the focal point of the objective lens of a compound microscope. Where is the image formed by the objective lens
Note that one chain connects the upper pulley to the ceiling and a second chain connects the lower pulley to the crate. Assume that the masses of the chains, pulleys, and ropes are negligible and the crate is rising with an acceleration of 3.3 m/s..
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