Your height as you dress in front of a spherical mirror in the morning for your 7: 30 class is h. the absolute value of the focal length of the spherical mirror is 60 cm. if your image has the same height h' 0125 h, then determine: upright orientation with its a) if the mirror is concave or convex. 121 b) how far you are standing from the mirror.

How have the competing explanations' experiments on atoms affected the development of the atomic model?

An ice-making machine inside a refrigerator operates in a carnot cycle. it takes heat from liquid water at 0.0 degrees celsius and rejects heat to a room at a temperature of 19.2 degrees celsius. suppose that liquid water with a mass of 76.3kg at 0.0 degrees celsius is converted to ice at the same temperature. take the heat of fusion for water to be l_f = 3.34*10^5 j/kg.how much energy e must be supplied to the device? express your answer in joules.

6–43 a food department is kept at 2128c by a refrigerator in an environment at 308c. the total heat gain to the food department is estimated to be 3300 kj/h and the heat rejection in the condenser is 4800 kj/h. determine the power input to the compressor, in kw and the cop of the refrigerator.