Design a rectangular reinforced concrete beam for a simple span of 35 ft. Uniform service loads are 1.0 kip/ft dead load (excluding the self-weight of the beam) and 1.2 kips/ft live load. Use f′c=4,000 psi and fy=60,000 psi. Sketch your design.
In: Civil Engineering
The RF amplifier of a receiver has an input resistance of 1 kΩ, and equivalent shot noise resistance of 2 kΩ, a gain of 25, and a load resistance of 125 kΩ. Given that the bandwidth is 1.0 MHz and the temperature is 20 °C. If this receiver is connected to an antenna with an impedance of 75 Ω, calculate the noise figure. (in dB)
In: Electrical Engineering
An analyst determines that three stocks have the following characteristics: Stock Beta, Forecast return X 1.0 10% Y 1.6 16 % Z 2.0 14 % If the risk-free rate is 4% and the expected return on the market is 10%, which stock is: Overvalued? ....... Undervalued?...... Properly valued? ....... (Show your work)
In: Finance
spaceship travels at a speed of 0.95c to the nearest star, Alpha Centauri, 4.3 light years (ly) away. How long does the trip take from the point of view of the passengers on the ship?
A. 1.4 ly
B. 1.0 ly
C. 4.5 ly
D. 14 ly
E. 0.44 ly
In: Physics
What is the pH change when adding 0.15 moles of HCl to a 1 L buffer containing 1.0 M acetic acid and 1 M sodium acetate?
A`) decreased by 0.13 units
B) increse by 0.13 Units
C) increase by 0.15 units
D) decrese by 0.15 Units
E) no change
In: Chemistry
|
Sucrose (M) |
0 |
0.1 |
0.2 |
0.3 |
0.4 |
0.5 |
0.6 |
0.7 |
|
Initial Weight (g) |
6.25 |
6.33 |
6.38 |
6.50 |
6.54 |
6.40 |
6.56 |
6.25 |
|
Final Weight (g) |
6.76 |
6.70 |
6.72 |
6.57 |
631 |
6.04 |
6.10 |
5.77 |
|
∆ Weight (g) |
0.51 |
0.37 |
0.34 |
0.07 |
-0.23 |
-0.36 |
-0.46 |
-0.48 |
|
%∆ Weight |
0.08 |
0.06 |
0.05 |
0.01 |
-0.03 |
-0.05 |
-0.07 |
-0.08 |
a. Sucrose concentration at which zero percent change in weight is observed is:
b. Determine the water potential (Ψw ) of the potato tissue. Show your calculations.
In: Chemistry
|
Ratio |
2017 |
2016 |
Industry Average |
|
Current Ratio |
1.8 |
1.9 |
2.2 |
|
Quick Ratio |
0.5 |
0.4 |
0.3 |
|
Inventory Turnover |
4.9 |
4.8 |
4.3 times |
|
Days Sales Outstanding |
7.4 |
6.3 |
5.1 days |
|
Fixed Asset Turnover |
83.4 |
86.5 |
51.6 |
|
Total Asset Turnover |
1.4 |
1.4 |
3.8 |
|
Debt Ratio (Debt/Assets) |
83.77% |
79.59% |
29.45% |
|
Times Interest Earned |
2.8 |
3.2 |
15 |
|
Net Profit Margin |
2.98% |
3.50% |
1.52% |
|
Return on Assets |
4.10% |
4.95% |
4.00% |
|
Equity Multiplier |
2.6 |
2.5 |
0.9 |
|
DuPont Equation (ROE) |
139 |
168.25 |
5.20% |
Complete both a trend and comparative analysis for Kohls. Comment on their liquidity position, asset utilization, debt management, and profitability over time and vs. competitors. Is Kohls in a stronger or weaker financial position than its average competitor? Why?
In: Accounting
|
Years |
2007 |
2008 |
2009 |
2010 |
2011 |
2012 |
2013 |
2014 |
2015 |
2016 |
2017 |
|
Retail Sales |
5.2% |
0.3% |
-3.3% |
3.0% |
4.9% |
3.9% |
3.1% |
4.2% |
3.8% |
3.9% |
3.6% |
|
e-commerce Sales |
19% |
4.1% |
2.8% |
17.1% |
17.5% |
14.9% |
13.0% |
14.6% |
14.7% |
14.0% |
16.0% |
Does Retail Stores Growth Reduced by E-commerce Growth?
Null Hypothesis: Ho: Retail stores growth doesn’t reduce by E-commerce growth.
Alternative Hypothesis: Ha: Retail stores growth does reduce by E-commerce growth
Do the chi-square test for goodness of fit. with the level of significance is 0.05
In: Statistics and Probability
| Distance (m) | 0.3 | 0.6 | 0.9 | 1.2 | 1.5 |
| Time (s) | 3.27 | 7.34 | 11.66 | 16.46 | 21.29 |
Now you will need to use your data to calculate velocities and accelerations. Recall that we have discussed average velocity as vavg = Δx/Δt as well as vavg = (vi + vf)/2. We also discussed average acceleration as aavg = Δv/Δt. Using these equations, calculate the instantaneous velocity of your cart at each distance/time data point and the average acceleration between each pair of distance/time data points. When you have completed your calculations, organize your results into a table with four columns: time, position, velocity, and average acceleration.
In: Physics
A typical thickness for a sheet of paper is 0.004 inches. If you
fold a sheet of paper once, the thickness of
the folded paper will double to a value of 0.008 inches. A second
fold will result in a folded thickness of
0.016 inches. Create a spreadsheet that shows the number of folds
from 0 to 50 and the resulting
thickness of each fold. Calculate the resulting thickness in units
of inches, feet, and miles.
In: Math