3. A source emitting a sound at 300.0 Hz is moving toward an observer at 25 m/s. The air temperature is 15 °C. What is
the frequency detected by the observer?

What is work? how much work is done to move an object 0 meters?

Write a question about how changing temperature affects the gas inside the sports ball

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.