A) A ball is falling freely under the action of gravity, when its downward speed is 8.0m/s, it explodes into two equal parts. One part goes straight up to a height of
12m above the explosion point. What is the velocity of the other part just after the
explosion. Take g
9.8ms-2​

Ineed extreme for task 2. my student number is 571721. many to whoever solves this correctly, im in debt to you.

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

Your science teacher brings in a speaker to talk to your class about climate change. during the session, students ask a few questions. which questions are related to the current evidence on climate change