connect a small bulb or battery with the help of connecting wires. cut one of its connecting wire and connect its end with different types of materials available at your home. observe the result and identify the behavior of each material. on the basis of your observations, make a list of at least 10 items behaving as conductors or insulators with justification.

The force acting on a beam was measured under the same operating conditions and a sample of 5 data points was collected. this process was repeated by 3 observers. the pooled standard deviations of these 3 data sets was 1.21. determine the true mean force using all pooled data (with a 95% probability). the result should look like this: true mean = mean +/- margin of error

Explain the comparisons between nature and packingtown that appears on pages 81 and 82 answer

6–48 bananas are to be cooled from 24 to 138c at a rate of 215 kg/h by a refrigeration system. the power input to the refrigerator is 1.4 kw. determine the rate of cooling, in kj/ min, and the cop of the refrigerator. the specific heat of banana above freezing is 3.35 kj/kg·8c.