How much ice is melted per second
A silver bar of length 30 cm and a cross-sectional area 1.o cm2 is used to transfer heat from a 100oC reservoir to a 0oC block of ice. How much ice is melted per second? (For silver, k= 427 J/s.m.oC. For ice, Lf= 334000 J/kg.)
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The probabilities that an adult man has high blood pressure and/or high cholesterol are shown in the table. Are high blood pressure and high cholesterol independent? Explain.
A 5-g lead bullet traveling in 20oC air at 300 m/s strikes a flat steel plate and stops. What is the final temperature of the lead bullet? (Assume the bullet retains all heat) The melting point of lead is 327oC.
A survey of prices for external disk drives found the accompanying data, where 1 TB=1000 gigabytes. Some reseach on the prices discovered that the 210 Gb hard rive was a special "hardened" drive designed to resist physical shocks.
You have a 1 liter container which contains 0.5 liters of water at 25 degrees celsius that is sealed. You then add 1 μg of phenanthrene to the water. The phenanthrene has a K' H of 0.001 and a log KOW of 4.46 at 25 degrees celsius.
In the titration of acetic acid and NaOH titration the use of the color indicator mandates that excess base be added in order to detect the reaction endpoint.
If you found this clock running too slowly, explain how would you adjust the circuit parameters to make it run faster?
The surface of the sun is at approximately 5700K and the temperature of the earth's surface is about 290K. What is the total entropy change occurs when 1000J of heat energy is transferred from the sun to the earth.
Water is the working fluid in an ideal regenerative Rankine cycle. Determine for the cycle amount of steam extracted to the open feed heater.
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Watch the third video, The Buddha: The Story of Siddhartha from PBS. Summarize the video by explaining the main idea and the key details that support it.
response on the following topic: Trace the ideas of Western Civilization from their origins in Greece to the Twentieth Century.
What effect did the World War II wartime experience have on African Americans? Did their experiences help or hinder the progress toward equality in America?
This essay is about African Americans in the United States MILITARY and the history should focus on the military service of the units, regiments and people
Group B will support the SCLC (Martin Luther King, Jr.'s movement).
How can I summarize the main idea and supporting points from the Ambrose video Judaism: The Chosen People?
Problem: Is it beneficial to development for kids this age to play organized sports? Consider both pros and cons of this issue.