Physics, 27.06.2019 11:20 irenecupcake4348
In the seventeenth century, robert hooke conducted many experiments with springs. in all the data he recorded, he found that the force needed to push down on a spring or stretch it out from its usual resting point was equal to the spring’s stiffness multiplied by the distance it is pushed or pulled from its resting point. he wrote the equation f = kx, in which f is the force, k is the spring’s stiffness, and x is the distance the end of the spring moves from its usual resting point when no push or pull is applied. the equation is still used today. which best describes hooke’s equation? it is a law, because it explains why a force must be applied to push or pull a spring. it is a law, because it states how force relates to a spring but does not explain why. it is a theory, because it explains why a force must be applied to push or pull a spring. it is a theory, because it states how force relates to a spring but does not explain why.
Answers: 3
Physics, 22.06.2019 07:00
Photoelectrons with a maximum speed of 6.50 x 107 m/s are ejected from a surface in the presence of light with a frequency of 6.75 x 1014hz. if the mass of an electron is 9.10 x 10-31 kg, calculate in joules the maximum kinetic energy of a single electron. 3.84 x 10-15 j 1.92 x 10-15 j 5.92 x 10-23 j 3.07 x 10-16 j
Answers: 1
Physics, 22.06.2019 17:00
(a) if the pressure in gas is doubled while its volume is held constant, by what factor do (i) vrms and (ii) change? (b) is it possible to boil water at room temperature (20oc) without heating it? explain.
Answers: 3
In the seventeenth century, robert hooke conducted many experiments with springs. in all the data he...
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