7. A stereo is able to convert 20% of its electrical energy into sound. If 1000 J of sound energy is produced, calculate the electrical energy used [Show all work].
8. A vehicle is only 18% efficient. How was the other 82% of the energy lost?
Answers (1)
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “7. A stereo is able to convert 20% of its electrical energy into sound. If 1000 J of sound energy is produced, calculate the electrical ...” in 📗 Physics if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers
You Might be Interested in
1. x-rays of wavelength 0.138nm fall on a crystal whose atoms, lying in planes, are spaced 0.285 nm apart. At what angle with the surface must the x-rays be directed if the a. first diffraction maximum is observed? b.
Answers (1)
Which of the following characteristics of stars is affected by a stars temperature? 1. Brightness 2. Color 3. Distance from Earth 4. Size
Answers (1)
What at ethe requirements for work to be done
Answers (1)
A package is pushed across the floor a distance of 90 feet by exerting a force of 32 lbs downward at an angle of 24 ∘ with the horizontal. How much work is done? Round to the nearest foot pound.
Answers (1)
Is there a sound loud enough to kill a person?
Answers (2)
New Questions in Physics
After creating a question and forming a hypothesis, what is the next step in the scientific method
Answers (1)
Roger sees water balloons fall past his window. He notices that each balloon strikes the sidewalk 0.51 s after passing his window. Roger's room is on the second floor, 10 m above the sidewalk.
Answers (1)
Which statements accurately describe the Doppler effect?
Answers (2)
Describe how mass and distance affect gravitational force.
Answers (1)
a bike can climb the inclined road at uniform speed of 72 km/hr by applying force 500N what will be the power applied by the bike?
Answers (1)