Aspring has an equilibrium length of 2.0 meters and a spring constant of 10 newtons/meter. alice is pulling on
one end of the spring with a force of 3.0 newtons. bob is pulling on the opposite end of the spring with a force of

3.0 newtons, in the opposite direction. what is the resulting length of the spring?
(a) 1.7 m
(b) 2.0 m
(c) 2.3 m (correct answer)
(d) 2.6 m
(e) 8.0 m

Could someone . i have tried to solve myself but my calculation is off

Which atomic model was proposed as a result of j. j. thomson’s work?

Acarpenter builds an exterior house wall with a layer of wood 2.9 cm thick on the outside and a layer of styrofoam insulation 2.3 cm thick on the inside wall surface. the wood has k=0.080w/(m⋅k), and the styrofoam has k= 0.010 w/(m⋅k). the interior surface temperature is 19.0 ∘c , and the exterior surface temperature is -15.0 ∘c . a.)what is the temperature at the plane where the wood meets the styrofoam? celsius b.)what is the rate of heat flow per square meter through this wall? /m^2