A vertical curve is designed for 55 mi/h and has an initial grade of +2.5% and a final grade of −1.0%. The PVT is at station 114 + 50. It is known that a point on the curve at station 112 + 35 is at elevation 245 ft. What is the stationing and elevation of the PVC? What is the stationing and elevation of the high point on the curve?

If x=3, y=4 what is the value of this Java expression?

(double) (x/y)

What is the value of this Java expression?

(int)(1.0 / 2.0) + (double)(1 / 2)

True or False:

(double)(x)/y is the same as double (x/y)

What is the value of this Java expression?

(double)3  

A) If we assume a solid cylindrical cable, what minimum diameter is needed if the voltage decrease along this run is to be no more than 1.0 % of the transmission voltage? The resistivity of aluminum is 2.7×10−8Ω⋅m.

1. Which of the following is the major advantage of term insurance relative to life insurance policies like whole life and universal life that build up cash values?

a. No need for a physical examination when renewing

b. Constant price across a person's lifetime

c. Readily convertible to cash

d. Provides a greater choice of investments

e. Has lower initial premiums

2.Which of the following betas probably indicates a speculative stock that is more risky and volatile than a broad market index of similar investments?a

a. -1.0

b. 0

c. 0.5

d. 1.0

e. 2.0

3. Changes in the value (or price) of a bond correspond most closely to changes in which of the following economy-wide factors

a. Unemployment rate

b. Interest rates

c. Balance of trade with foreign countries

d. Federal budget surplus or deficit

e. Control of Congress by Democrats or Republicans

Consider a black cubesat measuring 10x10x10 cm³, with the top panel perfectly oriented perpendicular to the direction to the Sun. The satellite is in orbit around Earth (h = 500 km). The energy balance is given by one of the equations on the fact sheet (where T represents temperature [K], m the mass of the satellite (here: 3 kg), c_p the specific heat coefficient, α the absorption coefficient (here: 1.0), A_in is the cross-sectional area exposed to sunlight, S the amount of incoming radiation, ε the emission coefficient (here: 1.0), A_out the surface area available for emittance of radiation, Q_internal the amount of internally generated heat, and σ the Stefan-Boltzmann constant). Provided that an equilibrium temperature of the satellite of 20° C is required, what would be the necessary amount of internally generated heat? Note: 0° C corresponds to 273.15 K.

The answer is 11.5 W , but I would like to know the detailed steps behind it

Heart’s dipole charge. This question refers to the heart and ECG. There is a PDF from textbook on this situation.

A) For dipole described in the problem below, draw the Electric field lines of the dipole. Don’t worry about the dielectric.

B) What’s the ECG measure?

C) Why is it important for the ECG pads to have good electrical conduction. That is, why do they put that ointment on your skin when they place the pads? I solved this problem in class.

D) The heart has a dipole charge distribution with a charge of +1.0 * 10-7 C that is 6.0 cm above a charge of -1.0 * 10-7 C. Determine the E field (magnitude and direction) caused by the heart’s dipole at a distance of 8.0 cm directly above the heart’s positive charge. All charges are located in body tissue of dielectric constant 7.0. What is the force exerted on a sodium ion (charge = +e = +1.6 * 10-19 C) at that point?

which of the following statements is correct?

A. the beta of a portfolio of stocks is always smaller than the betas of any of the individual stocks

B. If you found a stock with a zero historical beta and held it as the only stock in your portfolio, you would, by definition, have a riskless portfolio

C. The beta coefficient of a stock is normally found by regressing past returns on a stock against past market returns. One could also construct a scatter diagram of returns on the stock vs. those on the market, estimate the slope of the line of best fit and use it as beta. However, this historical beta may differ from the beta that exists in the future.

D. The beta of a portfolio of stocks is always larger than the betas of any of the individual stocks.

E. It is theoretically possible for a stock to have a beta of 1.0. If stock did have a beta of 1.0 then, at least in theory, its required rate of return would be equal to the risk-free (default-free) rate of return.

2. You are an engineer trying to design a capacitor. You have a parallel-plate capacitor made of two circular metal plates. The radius of each plate is 1 m and they are separated by a distance of 0.1 mm. If the space in between the plates was filled with vacuum, the capacitor would have a capacitance of 0.278 μF but you want to make this capacitor have a capacitance of 1.0 μF. You only have paraffin (K=2.2) and glass (K=5) to work with to insert in between the two plates. (a) If you filled the space in between the capacitor plates with paraffin, how much would you have to change the separation between the plates to get the desired 1.0 μF? (b) If you had to keep the dimensions of the capacitor the same and had to fill the space in between the capacitor with material, what fraction of the space in between would you have to fill with paraffin and what fraction would you fill with glass?

Use Java

(Algebra: solve 2 x 2 linear equations)

A linear equation can be solved using Cramer’s rule given in Programming Exercise 1.13.

Write a program that prompts the user to enter a, b, c, d, e, and f and displays the result.

If ad - bc is 0, report The equation has no solution.

Sample Run 1

Enter a, b, c, d, e, f: 9.0 4.0 3.0 -5.0 -6.0 -21.0
x is -2.0 and y is 3.0

Sample Run 2

Enter a, b, c, d, e, f: 1.0 2.0 2.0 4.0 4.0 5.0
The equation has no solution

Sample Run 3

Enter a, b, c, d, e, f: 1.0 2.0 2.0 4.0 4.0 5.0 6.0

x is -4.0 and y is 4.5


Class Name: Exercise03_03

If you get a logical or runtime error, please refer https://liveexample.pearsoncmg.com/faq.html.

A random variable (RV), x is distributed with a pdf as follows:

f_X(x) = [C × x × (1 – x)]       0 ≤ x ≤ a            (C and a are constants)

         = 0                                otherwise

Hence, determine the following: (i) C; (ii) cumulative probability of x in the range, [(u × a) ≤ x ≤ (v × a)]; where u and v are fractions; (iii) E[x]; (iv) second moment of x ; and, (v) standard deviation of x. Assume: a = 1, u = 0.5 and v = 0.75

Hence, choose the correct set of answers in the multiple-choices listed:

Multiple-choices on the answer-set