Physics, 28.07.2019 23:00, NycJahlilThegoat

Three children exhaust themselves pushing a huge rock that doesn’t move. have they done work? why?

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Physics, 22.06.2019 05:00, ajajjsisi9x8

Which is the best predictor of the radioactive nature of an isotope? o the proton-to-electron ratio the neutron-to-proton ratio o the neutron-to-electron ratio the electron-to-proton ratio

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Physics, 22.06.2019 06:00, ayoismeisalex

Imagine that someone pushes one marble toward a motionless marble. would there still be action-reaction forces involved in the collision? how might the marbles’ motions be changed? ?

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Physics, 22.06.2019 09:30, 11needhelp11

(**i would really appreciate if this was answered soon** ) which pair of quantities includes one quantity that increases as the other decreases during simple harmonic motion?

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Physics, 22.06.2019 11:30, azduce

(2) (a) you have a simple circuit that consists of only a battery (δvbat=1.5v) and two resistors with resistance r1=10ω and r2=5ω, connected in series with each other. what is the current running through the battery? (b) you re-arrange your circuit so now r2 is attached in parallel to r1 rather than in series. what is the current running through the battery? (c) you add an additional resistor r3=7ω on the same branch as r2. what is the current running through the battery? (d) what is the power dissipated in r3?