Math
 0
 0
 0
asked by
Shannon nault

posted by Damon
Respond to this Question
Similar Questions

chemistry
The use of the British thermal unit (Btu {\rm Btu}) is common in much engineering work. (1 Btu {\rm Btu} = 1054J {\rm J}) A Btu {\rm Btu} is the amount of heat required to raise the temperature of 1 lb {\rm lb} of water by 1 ∘ F 
Science
How many Btu's are required to change five pounds of ice at 20°F to water at 160°F? a. 2,608 Btu’s b. 1,390 Btu’s c. 1,304 Btu’s d. 141 Btu’s I am trying ((16020)x.5)x5 but not getting any of the possible choices. What 
Chemistry
When coal is mined, it is tested for how much heat it can produce when it burns. A 1.245g sample of coal was placed into a calorimeter containing 2000.0 mLs of water at 17.5 degrees Celsius. After the coal was combusted in the 
AP Physics
You go to kitchen to boil water. You pour 280 gram of water to a container, and put the container on a 293 W electric heater. Assume that all the heat from the heater is used to heat the water. The specific heat of water is 4.19 
physics
A 150L water heater is rated at 8kW. If 20%if its heat escapes, how long does the heater take to raise the temp of 150L of water from 10 to 60 degrees C 
College Physics
On average, an electric water heater operates for 3.4h each day. If the cost of electricity is $0.3 kWh, what is the cost of operating the heater during a 30day month? The power of a typical electric water heater is 4500 W. Cost= 
physical science
A 150L water heater is rated at 8 kW .If 20 percent of its heat escapes, how long does the heater take to raise the temperature of 150 L of water from 10C to 60C? 
Physics
An electric immersion heater is rated 5 A when connected to a 120V circuit. What is the resistance of the heater? If it takes 168 KJ to heat 500 ml of water from 20 deg C to boiling, how long does it take to heat the water? 
math
A hot water heater measures 20" in diameter. What is the area of a metal base for the water heater, assuming a fourinch overhang for the base beyond the edge of the heater? (Round to the nearest tenth.) 
Math
A hot water heater measures 20" in diameter. What is the area of a metal base for the water heater, assuming a twoinch overhang for the base beyond the edge of the heater?