a)Draw the diagram and describe the key components of a PLD. b)Describe the main advantage in using PLD deposition versus other Physical Vapour Deposition methods.

write a surmmary:

5.4.2 Applying External Filtration

Applying external filtration to a building requires modifica- tions to the building’s HVAC system and electrical system, and it also usually requires minor architectural changes to reduce air leakage from the selected protective envelope. These changes are necessary to ensure that, when the protective system is in operation, all outside air enters the building through the filters. The air exchange that normally occurs due to wind, chimney effect, and operation of fans must be reduced to zero. This is achieved mainly by introducing filtered air at a rate sufficient to produce an overpressure in the building and create an outward flow through all cracks, pores, seams, and other openings in the building envelope. For standby systems, dampers are normally required to tighten the envelope in transitioning to the protec- tive mode. The level of overpressure required varies with weather conditions and height of the building.The capacity of filtration units needed for protection is determined by the leakage characteristics and size of the building. The cost of installing a high efficiency filtration system varies directly with the leakage rate; higher leakage rate equals higher costs, and the need for additional heating and cooling capacity for the filtered air.Filtration system capacity must be matched to the leakage of the building to achieve maximum protection. Fan-pressurization tests are usually performed on buildings to determine their normalized leakage rates. Nominal data on the leakage rates of various types of buildings are available in the U.S. Army Corps of Engineers Engineering Technical Letter (ETL) 1110-3-498, Design of Collec- tive Protection Shelters to Resist Chemical, Biological, and Radiological (CBR) Agents, (February 24, 1999) and can be used to estimate the leakage rate of a building.

1. You launch a projectile with an initial speed of 54 m/s from the top of a building 70 m above the ground, at an angle of 60.0 degrees above the horizontal. How far from the base of the building does the projectile land on the ground?

Please answer in detail

In scanning probe microscopy, what is the most common technology to facilitate precise scanning? (Describe/draw the operating principle as well as the technological application (actual device))

In (Figure 1), the rod moves with a speed of 1.6 m/s on rails 29.0 cm apart. The rod has a resistance of 2.1 Ω . The magnetic field is 0.31 T , and the resistance of the U-shaped conductor is 26.0 Ω at a given instant.

Part A Calculate the induced emf

Part B Calculate the current in the U -shaped conductor.

Part C Calculate the external force needed to keep the rod's velocity constant at that instant.

A 100 Hz AC voltage source, with a peak output of 170 V, is connected to an inductor. If the rms current through the inductor is 1 A, what is the value of the inductor?

1. 1.9 H

2. 190 mH

3. 19 mH

4. 1.9 mH

A table of the specific heats of several materials is listed below.

1. Suppose that after you measure the specific heat Cs of the brass sample, you repeated your measurements with another brass sample, of twice the mass. What result would you expect, and why?

2. Rewrite Eq. (3.1) (Ms cs (Ts-Tf)=Mc Cc (Tf-T0) so that it is in the form Cs=....

3. Suppose you want to find the intersecion (x,y) fo two straight lines,

y=m1x+b1

y=m2x+b2

You are given values for the slopes m1 and m2, as well as for the intercepts b1 and b2. At the point where the lines intersect, both lines will have the same values of x and y. For this point of intersection, solve the pair of equations shown above to eliminate x. Your final result should be an dexpression y=... Where the right hand side depends only on M1, m2, b1, and b2.

4. ORDER OF MAGNITUDE ESTIMATION; supposed tha you drank 16 oz. of an ice- cold soft drink. If your body were unable to adjust its own temperature, how much woudl your body temperature decrease?

-State which physcial quantities are applicable.

-State your assumptions clearly (Hint: what is your body mostly made of?)

-Write down an appropriate formula.

-Show your calculations and a result.

An atomic nucleus initially moving at 420m/s emits an alpha particle in the direction of its velocity, and the new nucleus slows to 346m/s. If the alpha particle has a mass of 2u and the original nucleus has a mass of 222u, what speed does the alpha particle have when it is emitted?

I need a final correct answer in order to give full rating.

Two spherical objects have a combined mass of 170 kg . The gravitational attraction between them is 7.24×10^−6 N when their centers are 21.0 cm apart. What is the mass of the heavier object? What is the mass of the lighter object?

16 cm = _________________________ nm

180 mph = _______________________cm/s

42 μm = ________________________cm

271 g/cm3 = _______________________ kg/m3

25 ft = ________________________ mm

1692 m/s2 = ________________________ cm/hr2

255 mm = ________________________ Mm

3x108 m/s = _______________________ mm/min

Two substances, A and B, have the same mass. Substance A is at a higher temperature than B, and heat transfers between them until equilibrium is reached. The decrease in the temperature of A is less than the increase in temperature of B. Which substance has the larger specific heat?

Two point charges lie on the x axis. A charge of 6.5 μC is at the origin, and a charge of -9.5 μC is at x=10.0cm.

What is the net electric field at x=−4.0cm?

What is the net electric field at x=+4.0cm?

Suppose one gallon of gasoline produces 1.19×10⁸ J of energy, and this energy is sufficient to operate a car for 21.1 miles. An aspirin tablet has a mass of 324 mg. If the aspirin could be converted completely into thermal energy, how many miles could the car go on a single tablet? Please explain units needed in each equation!

A high frequency proton scatters off of an electron. At what angle should a detector be placed to detect the photon if the change in wavelength is 1.4 x 10-4 nm?