poate cineva sa ma ajute la aceasta problema: Un termometru indică în cameră 19 o C, iar afară -5 o C. care este diferența dintre temperatura aerului din cameră și a celui de afară? urgent dau coroana.

If you touch a hot light bulb and get burned, that is an example of a. radiation b. convection c. conduction

Asteam power plant operates on an ideal reheat rankine cycle between the pressure limits of 15 mpa and 10 kpa. the mass flow rate of steam through the cycle is 12 kg/s. steam enters both stages of the turbine at 500°c. if the moisture content of the steam at the exit of the low-pressure turbine is not to exceed 10 percent, determine (a) the pressure at which reheating takes place, (b) the total rate of heat input in the boiler, and (c) the thermal efficiency of the cycle. also, show the cycle on a t-s diagram with respect to the saturation lines. (2.15 mpa; 45.0 mw; 42.6%)

Because light travels in a straight line and casts a shadow, isaac newton hypothesized that light is