Physics, 12.02.2021 22:20 GabriellaDul
Plastic and wood are poor conductors of electric current, while copper and steel are good conductors of electric current. Which combination of materials would supply the LEAST amount of resistance to an electric current?
Wood and steel
Plastic and copper
Plastic and wood
copper and steel
Answers: 3
Physics, 21.06.2019 22:20
The place you get your hair cut has two nearly parallel mirrors 6.00 m apart. as you sit in the chair, your head is 2.00 m from the nearer mirror. looking toward this mirror, you first see your face and then, farther away, the back of your head. (the mirrors need to be slightly nonparallel for you to be able to see the back of your head, but you can treat them as parallel in this problem.) how far away does the back of your head appear to be?
Answers: 2
Physics, 22.06.2019 03:00
Which boundary is associated with the building of the himalaya mountains? convergent transform divergent hot spot
Answers: 1
Physics, 22.06.2019 15:20
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/(mโ
k), and the styrofoam has k= 0.010 w/(mโ
k). the interior surface temperature is 19.0 โc , and the exterior surface temperature is -15.0 โc . 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
Answers: 2
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