Physics, 23.03.2021 20:30 pinkmoonlight
Which explanation best describes a wave?
A. a disturbance that travels through a medium with a transfer of energy and matter
B. a disturbance that travels through a medium without a transfer of energy and matter
C. a disturbance that travels through a medium with a transfer of energy and without a transfer of matter
D. a disturbance that travels through a medium with a transfer of matter and without a transfer of energy
E. a disturbance that travels only in the absence of a material medium
Answers: 2
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Ablock of mass m slides on a horizontal frictionless table with an initial speed v0 . it then compresses a spring of force constant k and is brought to rest. the acceleration of gravity is 9.8 m/s2. how much is the spring compressed x from its natural length? 1) x = v0*sqrt(k/(mg)) 2) x=v0*sqrt(m/k) 3) x=v0*((mk)/g) 4) x=v0*sqrt(k/m) 5) x=v0*(m/kg) 6) x=v0*sqrt((mg)/k) 7) x=(v0)^2/(2g) 8) x=v0*(k/(mg)) 9) x=(v0)^2/(2m) 10) x=v0*((mg)/k)
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Which explanation best describes a wave?
A. a disturbance that travels through a medium with a tran...
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