Using wien’s law, estimate the wavelength at which these common materials radiate their peak brightness (show your work):

walls at 300 k:

ice water at 273 k :

hot water at 373 k :

skin at 310 k:

an incandescent light bulb at 3000 k

What was the most difficult obstacle to overcome in the creation of an autonomous state after indian independence was achieved? a british willingness to go to war to retain the region b. religious differences between hindus and muslims c. ethnic differences between tribal regions d. indian princes' inability to decide on a format of government

Can someone me? i need to have this done as soon as possible! i'm putting 20 points on this!

17. the soil erosion pictured here is the result of what? a. harvesting renewable resources at a rate greater than the sustainable yield b. a mudslide caused by excessive rains c. harvesting renewable resources at a rate lower than the sustainable yield d. the transition between geologic eras and eons