^{The secondary of a 500kVA, 4400/500 V, 50Hz, single-phase transformer has 500 turns.}

^{A) determine emf per unit.}

^{B) primary turns.}

^{C) secondary full load current}

^{D) maximum flux}

^{E) gross cross-sectional area of the core for flux density of 1.2 tesla}

^{F) if the core is square cross-section find the width of the limb}

Use the AD-AS diagram to graphically illustrate the short-run and long run impacts of an increase in taxes on the price level and income. Write down the impact of this policy on income, interest rate, unemployment and investment.

Be sure to label: i. the axes; ii. the curves; iii. the initial equilibrium levels; iv. the direction the curves shift; and v. the new short-run and long-run equilibriums.

Problem 5: Find the differential and total cross sections in the first Born approximation for elastic scattering of a particle of mass m, which is initially traveling along the z-axis, from a nonspherical, double-delta potential V (~ r) = V0δ(~ r − aˆ k)+V0δ(~ r+aˆ k), where ˆ k is the unit vector along the z-axis.

Use any method you choose to locate the important case of Hamer v. Sidway,124 N.Y. 538, 27 N.E. 256 (1891). Read the case and answer the following questions: Who is the offeror? What is the offer? Who is the offeree? How was the offer made? What was the consideration? Given your understanding of law, did the court make the right decision? Why or why not?

A small city requires about 10 MW of power. Suppose that instead of using high-voltage lines to supply the power, the power is delivered at 120 V.

Assuming a two-wire line of 0.48?cm -diameter copper wire, estimate the cost of the energy lost to heat per hour per meter. Assume the cost of electricity is about 10 cents per kWh.

A 4.0-cm-diameter parallel-plate capacitor with a 1.0 mm spacing is charged to 1000 V. A switch closes at t =0s, and the capacitor is discharged through a wire with 0.20? resistance.

Part A

Find an expression for the magnetic field strength inside the capacitor at r =1.0cm as a function of time t (where t is in ps).

Part B

Draw a graph of B versus t.

A voltaic cell consists of a Pb/Pb2+ half-cell and a Cu/Cu2+ half-cell at 25 ∘C. The initial concentrations of Pb2+ and Cu2+ are 5.20×10⁻²M and 1.50 M, respectively.

A) What is the cell potential when the concentration of Cu2+ has fallen to 0.250 M ?

B) What are the concentrations of Pb2+ and Cu2+ when the cell potential falls to 0.36 V?

What are Above or below of the line deductions?

What is a trade or business expense? How is it shown on the return(1040)?

What items discussed cannot be deducted?

What are the rules for illegal businesses and the differences between drugs and other illegal businesses?

What are The rules for expensing v capitalizing investigation expenses and the differences between the two terms?

What are Hobby loss rules and calculations?

Mark all pairs of H₀/H₁ below as valid (V) or invalid (I):

1. H₀: p = 0.4 vs.   H₁: p > 0.4
2. H₀: p ≠ 0.53 vs.   H₁: p = 0.53
3. H₀: σ² = 15 vs.   H₁: σ² ≠ 15
4. H₀: µ = 3   vs.   H₁: σ² ≠ 9
5. H₀: µ = 4   vs.   H₁: µ ≠ 0.2