How much energy is needed to increase the temperature of 500 g of lead from 20 °C to 45 °C? The specific heat capacity of lead is 128 J/kg/°C.

Current 1 of 8.4 a runs for 240 seconds and then stops. current 2 is 10.5 a. how long does current 2 have to un to deliver the same amount of charge as current 1? 88.28 192 s 2016 s 21,000 s

Determine the age of a fossil if it had only one eighth of its original carbon-14 content remaining?

Acalorimeter uses the principle that thermal energy flows from hotter material to colder material until both reach the same