How long will it take to empty the pool
A pump is used to empty a 4000 L wading pool. The water exits the 3.0-cm-diameter hose at a speed of 2.2 m/s .
How long will it take to empty the pool?
Express your answer using two significant figures.
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A 95 kg clock initially at rest on a horizontal floor requires a 650 N horizontal force to set it in motion. After the clock is in motion, a horizontal force of 560 N keeps it moving with a constant velocity. Find the coeffecient of static frictio
Paleomagnetic studies of Canadian volcanic rock known as the Carmacks Group have recently been completed. The studies revealed that the northward displacement of the rock units has an approximately normal distribution with standard deviation of 50
Find the Pearson correlation coefficient for the following set of data using the computational formula from the tutorial. Are these sample data sufficient to reject H0: r = 0 for α = 0.05, two-tailed?
Lemon juice is a complex aqueous solution that does not freeze in ahome freezer at temperatures as low as -11 °C. At what temperature will the lemon juice freeze if it effective molality is the equivalent of 11.37 m glucose solution?
A pump is used to empty a 4000 L wading pool. The water exits the 3.0-cm-diameter hose at a speed of 2.2 m/s . How long will it take to empty the pool?
The viscosity of the water is 1.12x10^-3 Pa s. Determine the power (in horse power) that must be supplied to the converter belt.
A test is made of H0: u = 69 versus H1: u /= 69. A sample size n = 72 is drawn and X= 70. The population standard deviation is 27. Compute the value of the statistic Z.
The mass spectrum of an organic compound,C40H82 contains M+ and M+1 peaks. If we assume the intensity ofM+ peak 100, what would be the intensity of M+1peak? Note: Ignore any effect of higher isotope of H.
State the appropriate null and alternate hypothesis ii. compute the test statistic Z iii. using a = 0.05, can you conclude that the percentage of failures differs from 45%
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