Back to Questions
Want to know:
Your car's engine is a heat engine; it converts the thermal energy from burning fuel into energy to move your car and power its systems. On a cold winter day, you needn't feel guilty about cranking up the heat in your car; running the heater doesn't cost any additional energy beyond the small amount needed to run the fan.Why is this so?A. The heater uses inevitable waste heat from the car's engine.B. The fan can sufficiently warm up the air due to the work it does on the air.
Get a detailed, AI-powered explanation for this question and thousands more on StudyFetch.
Get the Answer for FreeHow StudyFetch Helps You Master This Topic
AI-Powered Answers
Get instant, detailed explanations powered by AI that understands your course material.
Deep Understanding
Go beyond surface-level answers with step-by-step breakdowns and examples.
Personalized Learning
Spark.E adapts to your learning style and helps you connect ideas.
Practice & Test
Turn any question into flashcards, quizzes, and practice tests to solidify your knowledge.
Explore More Questions
- polypeptides can vary in length, from a few amino acids to________
- If farmers had no money and now no land, where did they migrate to? Perhaps you need to do a bit of your own research to fully answer this question. Record any website you use.
- Select the correct answer.Read the text from a speech made by President Lyndon B. Johnson in 1964."The war on poverty is not a struggle simply to support people, to make them dependent on the generosity of others. It is a struggle to give people a chance. It is an effort to allow them to develop and use their capacities, as we have been allowed to develop and use ours, so that they can share, as others share, in the promise of this nation.We do this, first of all, because it is right that we should. From the establishment of public education and land grant colleges through agricultural extension and encouragement to industry, we have pursued the goal of a nation with full and increasing opportunities for all its citizens. The war on poverty is a further step in that pursuit."How is this excerpt from Johnson's speech similar to Kennedy's speech?