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When a book falls from a shelf to the ground without anyone pushing on it, no work is done on the book. true or false
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Marvin records scientific data about lake superior. for which property has marvin forgotten to use an si unit of measurement? shore length high temperature low temperature annual precipitation
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Jenny wants to test the electrical conductivity of two substances dissolved in water. she is preparing the containers for the experiment. which factor is most important for her to control? a) volumes of the solutions b) appearance of the solutions c) temperatures of the solutions d) concentrations of the solutions
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Physics, 22.06.2019 20:50
Suppose that a mass of 2 kg is attached a spring whose spring constant is 50. the system is damped such that b = 12 . the mass is set in motion with an initial velocity of -8 m/s at a position 0 meters from equilibrium. set up and solve a differential equation that models this motion. write your solution in the form a cos ( ฯ t โ ฮฑ ) where ฮฑ is a positive number. use your solution to fill in the information below: what is the amplitude of the motion? what is the value of ฯ ? what is the phase shift?
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If the angle of incidence of a ray of light is 50 degrees, what would the angle of reflection
be?
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