An object 1.9 cm high is placed 46 cm from a concave mirror of radius 11...

An object 1.9 cm high is placed 46 cm from a concave mirror of radius 11 cm and radius of curvature 67 cm. Find the location, size, and orientation of the image.

Find the inverse Laplace transform of F(s)=5s2-3s+25/(s-2)(s2+9)

Find the inverse Laplace transform of F(s)=5s2-3s+25/(s-2)(s2+9)

. Two randomized-controlled trials of routine ultrasonography screening during pregnancy were carried out, to see whether...

. Two randomized-controlled trials of routine ultrasonography screening during pregnancy were carried out, to see whether routine ultrasound imaging influenced outcomes of pregnancy such as birthweight and mode of delivery. No significant differences were found. At ages 8 to 9 years, 2011 singleton children of the women who had taken part in these trials were followed up. Ultrasonography had actually been carried out on 92% of the ‘screened’ group and 5% of the control group. No significant differences were found...

Why can the age of a star cluster be determined? a) The lifetime of a star...

Why can the age of a star cluster be determined? a) The lifetime of a star can be determined because it is directly related to its mass. b) All of the stars of the cluster formed at the same time. c) The cluster's HR diagram will show a turnoff point where stars of a given mass have left the main sequence. d) All of the above. For any given star, the distance modulus: a) is the distance in light-years from...

Each front tire on a particular type of vehicle is supposed to be filled to a...

Each front tire on a particular type of vehicle is supposed to be filled to a pressure of 26 psi. Suppose the actual air pressure in each tire is a random variable – X for the right and Y for the left tire, the joint pdf ??,?(?,?)= ?(?^2 +?^?) ?? ?? ≤?≤ ??, ?? ≤?≤ ?? ? ; ????????? Where K is 3/380,000. (a) What is the probability that both tires are underfilled (i.e. less than or equal to 26...

In his book Leading Change (HBS Press 1996), John Kotter states: "A strategy of embracing the...

In his book Leading Change (HBS Press 1996), John Kotter states: "A strategy of embracing the past will probably become increasingly ineffective over the next few decades. Better for most of us to start learning now how to cope with change, to develop whatever leadership potential we have, and to help our organizations in the transformation process. Better for most of us, despite the risks, to leap into the future. And to do so sooner rather than later." Do you...

Claim: The mean pulse rate​ (in beats per​ minute) of adult males is equal to 6969...

Claim: The mean pulse rate​ (in beats per​ minute) of adult males is equal to 6969 bpm. For a random sample of 165 adult​ males, the mean pulse rate is 70.2 bpm and the standard deviation is 10.8 bpm. Find the value of the test statistic. The value of the test statistic is....

A manufacturing company has a pool of 50 labor hours. A customer has requested two products,...

A manufacturing company has a pool of 50 labor hours. A customer has requested two products, Product A and Product B, and has requested 15 and 20 of each respectively. It requires 2 hours of labor to produce Product A and 3 hours of labor to produce Product B. The company can obtain up to 50 additional hours of labor if required. In-house labor costs $25 per hour while contracted labor costs $45 per hour. Draw the network flow model...

Suppose that a batch of electronics is produced by a machine with a defect rate of...

Suppose that a batch of electronics is produced by a machine with a defect rate of 1%. The electronics are sold in packages of 50 with a money-back guarantee that there are no more than 3 defectives in each package. (a) Find the probability that a distributor returns a package. (b) Assuming independence, find the probability that a distributor returns at least five packages out of a shipment of 100.

Which properties is supported by UDP protocol acknowledgement number - SYN flag Window Field Which Properties...

Which properties is supported by UDP protocol acknowledgement number - SYN flag Window Field Which Properties are supported by TCP protocol : Acknowledgement number SYN flag Window Flag

Ecology: Hummingbirds Bill Alther is a zoologist who studies Anna’s hummingbird (Calypte anna; Reference: Hummingbirds by...

Ecology: Hummingbirds Bill Alther is a zoologist who studies Anna’s hummingbird (Calypte anna; Reference: Hummingbirds by K. Long and W. Alther). Suppose that in a remote part of the Grand Canyon, a random sample of six of these birds was caught, weighted, and released. The weights (in grams) were 3.7 2.9 3.8 4.2 4.8 3.1 The sample mean is x = 3.75 grams. Let x be a random variable representing weights of Anna’s hummingbirds in this part of the Grand...

LEARNING CURVE There are 2 firms: Company A and Company B. 1. Company A took 150...

LEARNING CURVE There are 2 firms: Company A and Company B. 1. Company A took 150 hours to produce its first unit. This month it wants to product 500 units. Using 80% learning curve, how many hours will it take to produce those 500 units? 2. Comany B also produced 500 units. However, it took B only 50 hours to produce its first unit. What was was B's learning curve? Can someone show me step by step please

Consider the case of an electron which is not at rest, but rather which has a...

Consider the case of an electron which is not at rest, but rather which has a kinetic energy, E_e much larger than the photon energy. Find an expression for the photon energy after the interaction. To do this most simply, make a frame transformation to a frame where the electron is at rest, calculate the scattering as above, and then transform back to the original reference frame. For this problem, you may wish to work in terms of the wavelength...

Ex. 445. G(s)=k(s+7)/(s(s+12)(s+17)) is the FTF of a unity- feedback closed-loop system. Sketch the root locus...

Ex. 445. G(s)=k(s+7)/(s(s+12)(s+17)) is the FTF of a unity- feedback closed-loop system. Sketch the root locus with respect to k. Determine the number of asymptotes, N. Determine the angle, A, in degrees between the asymptotes. Determine the angles, [B,C], in degrees of the asymptotes (let B<C). Asymptote angles: -180<angle<0 and 0<angle<=180 Determine the asymptote centroid, s=D. Answers: N,A,B,C, and D. ans:5

An undeveloped 1,000-acre catchment currently is covered by pasture in good condition and it composed of...

An undeveloped 1,000-acre catchment currently is covered by pasture in good condition and it composed of hydrologic soil group C. This gives a pre-development composite CN equal to 74. A proposed urban development (post development) will change land use to: 55% 1/3 acre lots (30% impervious), CN = 81; 20% in open space in good condition, CN = 74; and 25% in roads, sewers and parking lots, CN = 98. What is the increase or decrease of acre-ft. of water...

Nick Lee is a linebacker for the Baltimore Ravens (a professional football club). During the football...

Nick Lee is a linebacker for the Baltimore Ravens (a professional football club). During the football season he rents an apartment in a Baltimore suburb. The rest of the time he lives with his family in Ann Arbor (MI) and works at a local bank as a vice president in charge of public relations. Can Nick deduct his expenses while away from Ann Arbor? Explain.

On the distant planet of Zurg, the stock market had a return last year of -60%....

On the distant planet of Zurg, the stock market had a return last year of -60%. This year, due to an economic recovery, the stock market had a return of +100%. What was an investor’s effective annual return over this two-year period? If the investor requires an annual return of 10% to be happy, is the investor happy? you must show supporting work, or describe the numbers you input to your calculator (i.e., enter PMT = 2000; i = 5%;...

Let f(x)=5+3/x a) Find f′(x) b)Find the slope of the tangent line at x=1. Slope =...

Let f(x)=5+3/x a) Find f′(x) b)Find the slope of the tangent line at x=1. Slope = f′(1)=?

a) A 1.500 L flask is filled with a mixture of 1.20 g H2 and 8.40...

a) A 1.500 L flask is filled with a mixture of 1.20 g H2 and 8.40 g O2, at 25°C. The mixture is ignited, and hydrogen and oxygen combine to form water. What is the total pressure inside the flask before the reaction? (Report your answer in units of atmospheres.) What is the total pressure after the reaction, once the flask is returned to 25°C? (Vapour pressure of water at 25°C is 23.8 mm Hg.) b) In the photoelectric effect,...

Brooklyn Corporation manufactures DVDs. The machine that is used to make these DVDs is known to...

Brooklyn Corporation manufactures DVDs. The machine that is used to make these DVDs is known to produce 6% defective DVDs. The quality control inspector selects a sample of 100 DVDs every week and inspects them for being good or defective. If 8% or more of the DVDs in the sample are defective, the process is stopped and the machine is readjusted. What is the probability that based on a sample of 100 DVDs the process will be stopped to readjust...