Questions asked
2. Use Laplace transform to solve the ODE $$f''(t)+8f'(t)+20f(t) = 4\delta(t-5)$$ with initial conditions $$f(0) = 0, f'(0) = 0$$, where $$\delta(t)$$ is the Dirac delta function. [10]
Which of the following derivative contracts has a hard commodity underlying? A. Cattle futures B. Soybean futures C. Aluminum futures
3 times some number minus \frac{5}{18} is equal to 2 times the same number plus \frac{13}{27}. Find the number. The number satisfying the relation is (Type an integer or a simplified fraction.)
Question 17 (1 point) A woman with AB blood marries a man who has B blood. They have a child with A blood. What does the genotype of the man have to be in order for him to be the father? ii $I^A I^B$ $I^B I^B$ $I^A I^A$ $I^B i$ $I^A i$
What is the primary objective of the International Code of Ethics for Professional Accountants? a) Maximizing profits b) Protecting the public interest c) Promoting competition d) Achieving personal gain
Q2) An 10-pole (p), 80 Hz (f) induction machine has the following per-phase equivalent circuit parameters: Referred rotor resistance $R_2 = 0.81 \Omega$, $X_2 = 4.9 \Omega$. At a machine speed ($N_s$) is 750 rpm, it is assumed that the referred rotor current is ($I_2$) = 6.2A. Calculate: a) The total mechanical power ($P_r$) b) The torque. (T)
At year-end, Slippery, Inc. has cash of $9,000, current accounts receivable of $50,000, merchandise inventory of $21,000, and prepaid expenses totaling $4,400. Liabilities of $20,000 must be paid next year. What is Slippery's acid-test ratio?
Does the equation specify a function with independent variable X if so find the domain of the function if not find a value of X to which there corresponds more than one value of Y6X +17 Y equals 20
Considering the following shaft and using Brittle Coulomb-mohr (BCM) theory, Compare the factors of safety at the critical element for: a) section A-A (not affected by the notch) B) section B-B $S_{ut} = 300 MPa$ $D = 13 mm$ $M = 8.5 N.m$ $|S_{uc}| = 400 MPa d = 10mm T = 22 N.m E = 200 GPa r = 1 mm $\epsilon_f = 3.5\%$
Glass plates 14 mm thick initially at a uniform temperature of 450 deg C are tempered by suddenly bringing their surface temperatures (both sides) down to 50 deg C with a very high convection heat transfer rate. How long will it take for their midplane temperatures to reach 100 deg C? The properties of glass are: 2480 kg/m$^3$, 890 J/kg/K, and 1.3 W/m/K. Enter your answer in seconds using 3 significant digits.