the density of mercury is 13.6g/cm^3 and that of alcohol 0.8g/cm^3. in which of these substances will a solid cube of brass (density is 8.6 * 10^3 kg/m^3) sink

Your 249 ml cup of coffee is too hot to drink when served at 82 degree celsius. what is the mass of an ice cube taken from a -21 degree celsius freezer, that will cool your coffee to a pleasant 54 degree celsius. specific heat of the water is 4190 j/kg c, specific heat of ice is 2090 j/kg c, heat of fusion of ice is 3.33 x 10^5 j/kg

The step-down transformer gives a current of 10a at 24v if the primary voltage is 240v calculate the 1_primary current 2_the power input 3_the power output

Use 4 to 5 complete sentences, explain the concepts of beats and how beats are produces.