madelyngv97
21.10.2019 •
Chemistry
Who originally observed the constellations in the sky?
Solved
Show answers
More tips
- H Health and Medicine How to Improve Your Posture?...
- A Animals and plants How to Properly Care for a Pet Decorative Rabbit at Home?...
- C Computers and Internet How to Check the Speed of My Internet?...
- H Health and Medicine 10 Ways to Cleanse Your Colon and Improve Your Health...
- W Work and Career How to Write a Resume That Catches the Employer s Attention?...
- C Computers and Internet Е-head: How it Simplifies Life for Users?...
- F Family and Home How to Choose the Best Diapers for Your Baby?...
- F Family and Home Parquet or laminate, which is better?...
- L Leisure and Entertainment How to Properly Wind Fishing Line onto a Reel?...
- L Leisure and Entertainment How to Make a Paper Boat in Simple Steps...
Answers on questions: Chemistry
- C Chemistry Why does a laser light not produce a spectrum?...
- C Chemistry Which characteristics describe bacteria? check all that apply. are microscopic are single celled are multicelled have shapes that include sphere, rod, and spiral have shapes that...
- C Chemistry A carbon ion has a charge of -2. If a neutral carbon atom 12 protons and 12 neutrons, how many electrons will this ion have?...
- C Chemistry PLease help me because its fors a grade...
- C Chemistry How can you tell if a chemical equation is balanced...
- C Chemistry The net ionic equation for the reaction of calcium sulfite with nitric acid is a. CaSO 3(s) + 2HNO 3(aq) → Ca 2+(aq) + 2NO 3 –(aq) + SO 2(g) + H 2O( ). b. Ca(HSO 3) 2(s) + 2HNO 3(aq)...
- C Chemistry _is the radioisotope commonly used to map human s circulatory system...
- C Chemistry An occurs when a chemical reaction releases a large amount of energy very quickly...
- C Chemistry Which of the following describe chemical properties? - water boils at 0c - helium is the lightest monatomic element - sugar burns in air to form water and carbon dioxide - iodine...
- P Physics Four pairs of parallel plates are charged. an electron in each pair of plates is moved from the positive to the negative plate. the table shows the electric field and distance between...
Ответ:
Ответ:
waste energy = 30 J
Explanation:
Given that.
Input energy = 100 J
Useful energy = 70 J
We need to find the amount of waste energy.
Waste energy = total energy - used energy
= 100 J - 70 J
= 30 J
Hence, 30 J of energy is waste energy.