My tooth is aching. Change the noubs on the following sentence in plural and rewrite...
Solved
Show answers
More tips
- L Leisure and Entertainment Carving: History and Techniques for Creating Vegetable and Fruit Decorations...
- P Photography and Videography How to Choose the Perfect Photo Paper for Your Images?...
- H Health and Medicine What vaccines do children need?...
- H Health and Medicine Reasons for the Appearance of Warts: Everything You Need to Know...
- A Art and Culture How to Learn Screaming: Step-by-Step Guide for Beginners...
- H Health and Medicine Contraceptive Pills After 35: The Importance Of Choosing The Right Medication...
- C Computers and Internet How to Choose a Monitor?...
- H Horoscopes, Magic, Divination Where Did Tarot Cards Come From?...
- S Style and Beauty How to Make Your Lips Fuller? Ideas and Tips for Beautiful Lips...
Answers on questions: Physics
- P Physics The magnitude of of average velocity is equal to average speed when a particle moves...
- P Physics A mass of 1 slug is attached to a spring whose constant is 5 lb/ft. Initially, the mass is released 1 foot below the equilibrium position with a downward velocity of 5 ft/s, and...
- P Physics A cylindrical fishing reel has a mass of 0.634 kg and a radius of 3.9 cm. A friction clutch in the reel exerts a restraining torque of 1.52 N · m if a fish pulls on the line....
- P Physics ASAP 100 POINTS NO COMMENTS AND BRAINLIEST TO BEST ANSWER Should Native Americans be allowed to use peyote in their religious rituals? Why or why not? Provide support for your...
- P Physics Suppose that two objects attract each other with a gravitational force of 16 units. If the mass of object 1 is doubled, and if the distance between the objects is tripled, then...
- S Social Studies How did the Supreme Court s Engel v. Vitale decision affect civil liberties for U.S. citizens? O A. It expanded the interpretation of the establishment clause to limit government-led...
- H History 1 Drag each tile to the correct location Identify the characteristics of two landmark nineteenth-century Supreme Court cases. The Second Bank of the United States was involved...
- H Health How does the Health Insurance Portability and Accountability Act impact patient medical records? by establishing which patients need to have medical records by not allowing medical...
- H History The modern democracy is popularly associated which (a) Russia (b)America (c) Britain (d) Germany ....
- M Mathematics Which shows the image of rectangle ABCD after the rotation (9) D עןC D CTV D e tu D 3 3 3 A IB A B B B B! IA DI LA JA DI Intro Dane...
Ответ:
There are a few assumptions to note before solving this problem. First assumption is that the aluminum cup is at the same temperature as the water at the start. The second assumption is that the from the copper block is transferred slowly enough that no water is lost due to boiling or evaporation, or that such loss is insignificant.
Since the temperatures are in a range where there will be no phase changes, we can make the problem easier by arbitrary considering our starting temperature to be 16.0 âC for everything. So we'll consider the starting energy for the aluminum and water to be 0. So let's calculate the amount of excess energy the copper block has over the base temperature of 16.
235 - 16 = 216
216 * 390 J/kgâ‹…Câ * 0.225 kg = 19217.25 J
We now have 19217.25 Joules of energy with which to raise the temperature of 225 grams of copper, 155 grams of aluminum, and 835 grams of water. Let's see how much energy is needed to raise the temperature of all 3 items by 1 degree.
0.225 Kg * 390 J/kgâ‹…Câ + 0.155 kg * 900 J/kgâ‹…Câ + 835 * 4186 J/kgâ‹…Câ
= 87.75 J/Câ + 139.5 J/Câ + 3495.31 J/Câ
= 3722.56 J/Câ
Now we have a simple matter of multiplication to get the temperature rise from our starting point.
19217.25 J / 3722.56 J/Câ = 5.162374817 Câ
So the temperature rises by 5.162374817 Câ from our starting point. Just add that to the starting point:
16.0 Câ + 5.162374817 Câ = 21.16237482 Câ
Finally, round to 3 significant figures, giving 21.2 Câ