How much heat would it take to melt 2000 kg of snow that started at -10 degrees Celsius? specific heat of snow is 2100 J/kgC
heat of fusion is 3.34 x 10^5 J/kg
treat this a two questions, one to heat the snow to its melting point, the other to melt the ice

The focal length of a relaxed human eye is approximately 1.7 cm. when we focus our eyes on a close up object, we can change the refractive power of the eye by about 16 diopters. (a) does the refractive power of our eyes increase or decrease by 16 diopters when we focus closely? explain. (b) calculate the focal length of the eye when we focus closely.

The a992 steel rod bc has a diameter of 50 mm and is used as a strut to support the beam. determine the maximum intensity w of the uniform distributed load that can be applied to the beam without risk of causing the strut to buckle. take f.s. = 2 against bucklin

Drag each tile to the correct box. tiles bra i sequence