1) A tank is full of water. Find the work W required to
pump the water out of the spout. (Use 9.8 m/s2 for
g. Use 1000 kg/m3 as the weight density of
water. Assume that a = 4 m, b = 4 m, c =
12 m,and d = 1 m.)
W = ___ J
I got 5017600 then in scientific notation it would be 5.0176 X
10^6, then in Juls in would be 5.02?
I got the answer...
A water tank is spherical in shape with radius of
90 feet. Suppose the tank is filled to a depth of
140 feet with water. Some of the water will be
pumped out and, at the end, the depth of the remaining water must
be 40 feet.
i) Set up a Riemann sum that approximates the volume of the
water that is pumped out of the tank. (use horizontal slicing). You
have to draw a diagram and choose a coordinate...
Find the work (in ft-lb) required to pump all the water out of a
cylinder that has a circular base of radius 6 ft and height
200 ft. Use the fact that the weight-density of water is
62.4 lb/ft3.
Find the work (in ft-lb) required to pump all the water out of
the cylinder if the cylinder is only half full.
A.) Find the work done by an
ideal engine which extracts 8900.0 J of heat from its hot resevior
while operating between 550.0 K and 370.0 K.
B.) The work from the engine goes into an ideal refridgerator
which extracts 5300.0 J of heat from its cold resevior. FInd the
coefficient of performance of the ideal refridgerator.
Water is leaking out of an inverted conical tank at a rate of
11000 cubic centimeters per min at the same time that water is
being pumped into the tank at a constant rate. The tank has height
15 meters and the diameter at the top is 5.5 meters. If the water
level is rising at a rate of 25 centimeters per minute when the
height of the water is 1.5 meters, find the rate at which water is
being...
Experiments are done to find out how long it takes rabbits to
find their path through a maze. Mean time u=18 seconds is
completion time for a maze. A scientist suggests that carrots will
cause the rabbits to complete the maze faster. Experiments are done
on 4 rabbits with carrots as a stimulus and the time in seconds are
recorded 15,15,16,17
1.State the ho and ha
2.assume that the distribution of times is normal, do these
experiment results support the...
A tank contains 100kg of salt and 2000L of water. Pure water
enters a tank at the rate 6L/min. The solution is mixed and drains
from the tank at the rate 3L/min. ) Find the concentration(kg/L) of
salt in the solution in the tank as time approaches infinity.
(Assume your tank is large enough to hold all the solution.)
Water Flowing from a Tank
Water flows steadily from an open tank as shown in the figure. (Figure 1) The elevation of point 1 is \(10.0 \mathrm{~m},\) anc the elevation of points 2 and 3 is \(2.00 \mathrm{~m}\). The crosssectional area at point 2 is \(4.80 \times 10^{-2} \mathrm{~m}^{2} ;\) at point 3 where the water is discharged, it is \(1.60 \times 10^{-2} \mathrm{~m}^{2}\). The cross-sectional area of the tank is very large compared with the cross-sectional area of the...
Water flows steadily from an open tank as shown in the figure. (Figure 1) The elevation of point 1 is 10.0 m, and the elevation of points 2 and 3 is 2.00 m. The cross-sectional area at point 2 is 4.80 × 10-2m2; at point 3, where the water is discharged, it is 1.60 × 10-2m2. The cross-sectional area of the tank is very large compared with the cross-sectional area of the pipe.Part BWhat is the gauge pressure Pgauge at point...
A study was done and 125 out of 138 answered yes to the
question
Find a 99% confidence interval.
Give all answers correct to 3 decimal places.
a) Critical value (positive value only):
Remember: this is the z value such that the percent given is
centered on the normal curve.
b) If some study was done and 125 out of 138 answered yes to the
question, What is ˆpp^? Hint: Divide the
number that said yes by the total.
c) What...