Reference no: EM13881712
1. A lead vat is 17 m long at room temperature (20°C). How much longer is it when it contains boiling water at 1 atm pressure? ??? m
2. An aluminum wing on a passenger jet is 33 m long when its temperature is 26°C. At what temperature would the wing be 6 cm (0.06 m) shorter? ??? Celsius
3. Air in a balloon does 36 J of work while absorbing 82 J of heat. What is its change in internal energy? ??? J
4. A bottle containing 2 kg of water at a temperature of 16°C is placed in a refrigerator where the temperature is kept at 2°C. How much heat is transferred from the water to cool it to 2°C? ??? J
5. A 0.03-kg lead bullet traveling 354 m/s strikes an armor plate and comes to a stop. If all of the bullet's energy is converted to heat that t alone absorbs, what is its temperature change? ??? Celsius
6. One cubic meter of water (see Table 4.4 for the mass density of water) flowing over the Lower Falls in Yellowstone National Park drops 94 m. If all of the water's potential energy is converted to kinetic energy at the bottom of the falls and the kinetic energy goes to heat the water, what is the temperature increase of the water? ??? Celsius
7. A proposed ocean thermal-energy conversion (OTEC) system is a heat engine that would operate between warm water (23°C) at the ocean's surface and cooler water (6°C) 1,772 m below the surface. What is the maximum possible efficiency of the system? Enter your answer accurate to two decimal places. ??? %
|
Determine the current annual lcc at six percent per year
: Use the following information to determine the current annual LCC at 6% per year for the AREMSS scheduling system.
|
|
A system consisting of two particles, m1 and m2
: A system consisting of two particles, m1 and m2, with momenta at time t1, p1 and p2, respectively. At time t2, m1 has momentum p1 + Δp, and m2 has momentum p2 - Δp. Which of the following statements will always be true for this scenario?
|
|
Find the supremum and infimum
: Find the supremum (least upper bound), infimum (greatest lower bound), maximum and minimum of the following sets, if they exist and find the real numbers x that satisfy the given conditions.
|
|
Information is maintained by a us government agency
: Based on what you have learned about plate tectonics, what hypothesis can you present about why earthquakes happen where they do?Why do you think information is maintained by a US government agency?Why do you think the USGS database is useful?
|
|
A lead vat is 17 m long at room temperature
: 1. A lead vat is 17 m long at room temperature (20°C). How much longer is it when it contains boiling water at 1 atm pressure? ??? m 2. An aluminum wing on a passenger jet is 33 m long when its temperature is 26°C. At what temperature would the win..
|
|
Partial year depreciation is calculated based on the number
: 1.Howarth Manufacturing Company purchased a lathe on June 30, 2009, at a cost of $80,000.
|
|
Main reasons why some groundwater sources
: Explain the main reasons why some groundwater sources that we use may be more vulnerable to chemical contamination than others. Next, suggest one (1) strategy that the government can take to reduce groundwater contamination.
|
|
Is there evidence of multicollinearity in the data
: Regress average hours worked during the year on the variables given in the table and interpret your regression.
|
|
How much work is done by a 208 lb person
: How much work is done by a 208 lb person who walks up a 24 ft high flight of stairs?
|