the emissivity of tungsten is approximately 0.65.A tungsten sphere 1cm in radius is suspended within a large evacuated enclosure whose walls are 400K. what power input is required to maintain the sphere at a temperature of 3000K if heat condition along the support is neglected take σ=5.67×10⁻8.

wind moving at higher speeds will transfer more energy to the water, resulting in stronger waves.

the answer is a. the yacht traveled from the dock north to the 200-meter marker in the bay in less than 5 minutes, giving the passengers several more hours to fish.

im doing peak rn so sry if its wrong

the answer is false. this is because for ice to melt, it requires latent heat of melting. latent heat means heat energy required to change phase without any increase in temperatures. therefore, the ice will take energy from the environment to melt hence atmospheric temperatures will reduce.