You must have a JavaScript 1.1 savvy browser, like Netscape 3.0, to use this page.You should disable the 'submitting an insecure form' warning in your browsers preferences or option menu. If you don't the results window will be sent to the back when you check your results. (You can retrieve it by using the window button in the menu bar).
Press the Start button to get your assignment!
You can only submit this page once. Press Reset to clear your answers and Start for another attempt. Do not attempt to change the problem data.
Constants
and
Conversions
. Need a
calculator
? How about some
hints
.
Make sure to enter your answers in the specified units, but do not include the units in your answer.
First Name:
Last Name:
1) What is the weight to the nearest tenth of a Newton of an iron sphere with a radius of
cm?
2) In problem 1) what would be its apparent weight when immersed in water?
3) Water circulates throughout a house in a hotwater heating system. The water is pumped at a speed of .7 m/s through a
cm diameter pipe in the basement under a pressure of 3 atm. What is the pressure to the nearest N/m^2 in a 2 cm pipe on the second floor 5 meters above the basement?
4) In problem 3) What is the velocity to the nearest tenth of a m/s in a 2 cm pipe on the second floor 5 meters above the basement?
5) If the basement pipe is 4 cm in diameter and the water velocity is .8 m/s, what is the flux of the outflow to the nearest tenth of a liter/s at a
cm diameter faucet on the second floor?
6) If wind blows at
m/s over your roof which has an area of 300 m^2,to the nearest N/m^2 what is the pressure above the roof(assume that the pressure in the house is 1 atm)?
7) In problem 6) What is the lifting force to the nearest Newton on the roof?
8) Given that the Bulk modulus of water is 2x10^9 N/m^2 ,what is its density in units of 10^3 kg/m^3 (to 2 decimal points) at a depth of
km?
9) A
kg lead sphere is immersed in a liquid where it has an apparent mass of 10kg. What is its radius to the nearest tenth of a cm ?
10) In problem 9) To the nearest kg/m^3, what is the density of the liquid?