Temperature increase in water question

In summary, the conversation focused on determining the temperature increase of 5kg of water when a 50kg aluminum block is dropped from a large height and hits the water at 150 m/s. The equation used was Q=mc(change of t) and the solution was found to be 26.9 degrees Celsius using the equation for kinetic energy, KE=.5m(v^), and the given values.
  • #1
muddahwhale
1
0
1. A 50kg alumium block is dropped from a large height and hits a container of water at 150m/s. Assuming all the kinetic energy of the falling block goes into heating the 5kg water, what is the temperature increase of the water.

Homework Equations


Q=mc(change of t)
KE=.5m(v^) maybe?[/B]

The Attempt at a Solution



.5(50)(150^)=562500 Jules
562500= 5(4180)(change of t)
change of t= 26.9[/B]
 
Physics news on Phys.org
  • #2
Did you have a question about your solution?
 
  • #3
Welcome to PF;
Do you not know the equation for kinetic energy? Then look it up.
Numbers are meaningless without units.
Did you have a question?
 

1. What causes the increase in temperature in water?

The increase in temperature in water is primarily caused by heat energy being added to the water. This can come from external sources such as the sun or a heat source, or from internal sources such as chemical reactions or friction.

2. How does temperature increase affect the properties of water?

As the temperature of water increases, its molecules become more energetic and move more quickly, causing the water to expand and become less dense. This also leads to a decrease in its viscosity, making it easier for things to dissolve in water at higher temperatures.

3. What are the consequences of a significant increase in water temperature?

A significant increase in water temperature can have a variety of consequences. It can impact aquatic ecosystems and disrupt the balance of the organisms living in the water. It can also lead to more rapid evaporation, which can contribute to drought conditions. Additionally, warmer water can decrease the solubility of oxygen, which can be harmful to aquatic life.

4. How does the increase in water temperature affect global climate change?

The increase in water temperature is one of the main indicators of global climate change. As the Earth's overall temperature increases due to the greenhouse effect, the temperature of its oceans also rises. This can lead to changes in weather patterns and the melting of polar ice caps, which can have significant impacts on sea levels and coastal communities.

5. How can we measure and monitor the temperature increase in water?

There are various ways to measure and monitor the temperature increase in water. One common method is to use a thermometer to directly measure the temperature of the water. Another way is to use remote sensing technology, such as satellites, to measure the temperature of large bodies of water. Additionally, scientists also study the effects of temperature increase on marine life and ecosystems as a way to monitor changes in water temperature.

Similar threads

Ice in water question - what is final temperature?
    • Introductory Physics Homework Help
Replies
11
Views
4K
Heat question -- Ice cube in a cup of water....
    • Introductory Physics Homework Help
Replies
7
Views
8K
Specific Heat Question: Calculating Temperature Change with Copper and Water
    • Introductory Physics Homework Help
Replies
2
Views
1K
Water and Ice mixture, Find original temperature of water
    • Introductory Physics Homework Help
Replies
4
Views
2K
Heat and work when temperature increases by 1 degree
    • Introductory Physics Homework Help
Replies
21
Views
2K
Total Entropy Change of Iron & Water: 2.2 J/K
    • Introductory Physics Homework Help
Replies
11
Views
5K
Cooking (Thermodynamics) Problems
    • Introductory Physics Homework Help
Replies
14
Views
3K
The mechanical Equivalent of heat: total increase in temperature of the water?
    • Introductory Physics Homework Help
Replies
19
Views
5K
D’Alembert Vs Conservation of Energy
    • Introductory Physics Homework Help
Replies
3
Views
4K
Find the final Celsius temperature of the aluminum and water
    • Introductory Physics Homework Help
Replies
2
Views
2K

Hot Threads

Recent Insights

Back
Top