Recent content by wcase

I just add d*atmospheric pressure to the previous calculations, right? (1000*(2*d)*d^2)+(d*1e5)

I understand, but I did not add any atmospheric pressures initially. If I search the problem on the internet, and change the d value to whatever the alternate problem is, and do 1000*(2*d)*d^2, with 1000 being the density of water, 2d being the height of water above face A, and d^2 being the...

I doubt it, but the question only refers to the pressure from the water. And even if atmospheric pressure was factored in, assuming the tank is completely exposed to the atmosphere, shouldn't any effects cancel out since it would be acting on the top and bottom of the tank? And when I did...

Homework Statement The L-shaped tank shown in the figure is filled with water and is open at the top. If d = 4.81 m, what is the total force exerted by the water (a) on face A and (b) on face B? image: http://edugen.wileyplus.com/edugen/courses/crs4957/art/qb/qu/c14/fig14_33.gif Homework...

"(ag-g)/g*100 is the correct answer" Indeed, thanks.

that makes sense, but now I have to choose from ((g-ag)/g)*100=-1.0002e8 and ((ag-g)/ag)*100=99.9999 but I guess since subtraction isn't reversible, it is most likely ((g-ag)/g)

Here is the question: Consider a pulsar, a collapsed star of extremely high density, with a mass M equal to that of the Sun (1.98 × 1030 kg), a radius R of only 12.7 km, and a rotational period T of 0.0545 s. By what percentage does the free-fall acceleration g differ from the gravitational...

With block A, the force from the string is pulling it, and the force is coming directly from the weight of block B and C, so I still don't understand why the weight pulling on the string has no effect on the tension of the string.

The problem is: In the figure here three ballot boxes are connected by cords, one of which wraps over a pulley having negligible friction on its axle and negligible mass. The masses are mA = 31 kg, mB = 40 kg, and mC = 13 kg. When the assembly is released from rest, (a) what is the tension in...