Determine o calor específico em cal/g°C de uma substância com massa de 2 kg que, ao receber 6000 cal de calor de uma fonte térmica, teve a sua temperatura elevada em 30 °C

The us government wants to allocate billions of dollars in the next 10 years to assure our future energy security. the funds will be spread among a variety of possible energy resources. where do you think the government should put the greatest support: solar energy, wind energy, clean coal, oil exploration, gas exploration, or a combination of sources? are there other efforts that should be explored? support your position with cited information for both questions.

How many neutrons does plutonium -196 with an atomic number of 78.

How does the entropy of steam compare to the entropy of ice?