Light from an ideal spherical blackbody 19.0 cmcm in diameter is analyzed by using a diffraction grating that has 3650 lines/cmlines/cm . When you shine this light through the grating, you observe that the peak-intensity wavelength forms a first-order bright fringe at ±± 14.2° from the central bright fringe. Required:
a. What is the temperature of the blackbody?
b. How long will it take this sphere to radiate 16.0 MJ of energy?

Under normal conditions, describe how increasing the temperatures effects the solubility of a typical salt

A10 kg box initially at rest is pulled 18 meters across a horizontal, frictionless surface by a 40 n force. what is the block’s final velocity over the 18 meters?

Avertical clean glass piezometer tube has an inside diameter of d = 1 mm and is used to measure pressure in a horizontal pipe carrying water as shown. due to pressure in the pipe, the water at 20c rises into the tube to a height h. if the water pressure in the pipe is p = 500 pa gauge, estimate the height h: (a) without considering surface tension (b) with surface tension (capillary) effects. the contact angle  can be assumed at 30 deg