A semiconductor diode, the forward and reverse characteristics of which can be considered ideal, is used in a half-wave rectifier circuit supplying a resistive load of 1000Ω. If the r.m.s. value of the sinusoidal supply voltage is 230 V determine: (a) the peak diode current; (b) the mean diode current; (c) the r.m.s. diode current; (d) the power dissipated in the load

In each of the following situations, Emma is in the exact center of a glass-sided freight car speeding to the right at a very high speed v relative to you. For each question, explain your reasoning.

1. Emma has a flashlight in each hand and directs them at the front and rear ends of the freight car. She then switches the flashlights on at the same time.

   1. In Emma

Two moles of nitrogen gas at 25°C, confined within a cylinder by a piston maintaining a constant pressure of 1 atm, is heated with 5.30 kJ of energy. Assume all the energy is used to do work of expansion of the gas at 1 atm. What will be the final temperature of the gas? Recall ∆H = ∆E + P∆V and watch your units!

A 40.0-uF capacitor is connected to a 50.0-ohm resistor and a generator whose rms output is 30.0 V at 60.0 Hz.

Find...

A) the rms current circuit

B) the rms voltage drop across the resistor

C) the rms voltage drop across the capacitor

D) and the phase angle for the circuit

Please Explain how to get these answers, Thankyou

The parity operator P is defined by

ˆ Pψ (x) =ψ (−x)

for any function ψ(x).

(a) Prove that this parity operator P is Hermitian.

(b) Find its eigenvalues, and also its eigenfunctions (in terms of ψ(x)).

(c) Prove that this parity operator commutes with the Hamiltonian when potential V(x) is an even function.

II. Discuss the planning feature of garden at industrial estate. III. Explain the merits and demerits of Green roofs. IV. State types of Mughal gardens along with their landscape planning citing examples V. Discuss the role of children’s play area in the city and elaborate design considerations and element used for different age groups (5 Marks

Use marginal analysis (the comparison of additional/marginal benefit with additional/marginal cost) to create some examples of your own. Good examples of diminishing returns can be observed from nearly all episodes of the reality TV show "Man v. Food" with Adam Richman or Casey Webb . Find one on the web to use in your essay

1. We have discussed a number of major software development processes (eg Waterfall V-Shape, Spiral, RUP, and Agile) in class. They all have various pros and cons. What are the commons key stages of activities among all these processes? Describe each of these stages with example activities.

Start with a diagram and explain each stage accordingly

The ammonia molecule NH₃ has a permanent electric dipole moment equal to 1.47 D, where 1 D = 1 debye unit = 3.34 × 10^-30 C-m. Calculate the electric potential in volts due to an ammonia molecule at a point 49.6 nm away along the axis of the dipole. (Set V = 0 at infinity.)

An oscillator consists of a block attached to a spring (k = 490 N/m). At some time t, the position (measured from the system's equilibrium location), velocity, and acceleration of the block are x = 0.107 m, v = -16.6 m/s, and a = -103 m/s2. Calculate (a) the frequency of oscillation, (b) the mass of the block, and (c) the amplitude of the motion.