A constant current source supplies a electric current of 200 mA to a load of 2kΩ. When the load changed to 50Ω, the load current will be 8A
9mA
700mA
12A
6. Internal resistance of cell when there is current of 0.40A when a battery of 6.0V is connected to a resistor of 14.5Ω is

1.5Ω
3.5Ω
2.3Ω
0.5Ω​

F500 j of energy were added to 1 kg of each of these samples, which would experience the least temperature increase?

For the car in the picture ,in which direction is the normal force? -into the screen -down -out of the screen -up

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