Recent content by imnotsmart

A "seconds" pendulum is one that goes through its equilibrium position once each second. (The period of the pendulum is 2.000 s.) The length of a seconds pendulum is 0.9927 m at Tokyo and 0.9942 m at Cambridge, England. What is the ratio of the free-fall accelerations at these two locations...

thanks for your help buddy...

Is it good for mercury?

So is the answer -10.5?

P is suppose to be the pressure, but I am not sure what that is...I don't get this problem at all.

I don't understand what you are saying.

So that is P=Po+(row)(g)(h) P=1.013*10^5+(984kg/m^3)(9.8)(h)...is this correct?

Blaise Pascal duplicated Torricelli's barometer using a red Bordeaux win, of density 984 kg/m^3, as the working liquid. What was the height of the wine column for normal atmospheric pressure? Would you expect the vacuum above the column to be as good as for mercury?

I figured it out...the answer is 12.1 min...thanks buddy

so 3.8e-4 is the area and the volume is .387 so the answer is 1018.1s?

Don't think i totally sound stupid here but am i looking for the area of the hose?

So 1.4 m/s * time= .387m which =.28s?

How do I go about finding how long it takes.

A cowboy at a dude ranch fills a horse trough that is 1.7 m long, 65 cm wide, and 35 cm deep. He uses a 2.2 cm diameter hose from which water emerges at 1.4 m/s. How long does it take him to fill the trough? I know the trough's volume is .387m^3. How do I find the rate at which the water fills?

So how do you find the volume of the hemisphere?