The resistance Rt of a platinum wire at t°C, measured on the gas scale is given by Rt=Ro(1+aT+bT²) where a = 3.8×10^-3/°C and b = -5.6×10^-7/(°C)². What temperature will the platinum thermometer indicate when the temperature on the gas scale is 200°C?

Awater-filled u-tube manometer is used to measure the pressure inside a tank that contains air. the water level in the u-tube on the side that connects to the tank is 5 ft above the base of the tank. the water level in the other side of the u-tube (which is open to the atmosphere) is 2 ft above the base. determine the pressure within the tank.

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

Of is j/kg·k. if a 2.6 kg of isk to k, is ?