Numerade

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Increase the frequency of the sound (you might want to turn the amplitude a bit lower first!). What happens to the movement of the speaker? What happens to the sound that the speaker makes? What happens to the wave that the speaker makes?

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Which statement best describes the concept of a binding price ceiling? Assume that the equilibrium price of petrol is €1.15 per litre. The government has instituted a legal minimum price of €1.00 per litre for petrol. The government prohibits Petrol stations from selling petrol for more than €1.00 per litre. The government has instituted a legal minimum price of €1.50 per litre for petrol. The government prohibits Petrol stations from selling petrol for more than €1.50 per litre.

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QUESTION 15 What do most economists think is the socially optimum extraction rate of a natural resource such as oil? One that equals the MRP of the resource. A rate that ensures that the price of oil increases at the same rate as the interest rate. One that is less than the rate of discovery of new sources. One that is less than 2 percent of known reserves so as to guarantee at least 50 years' supply at all times.

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Question 18 If borrowers and lenders expect a higher rate of inflation, nominal interest rates should decrease. nominal interest rates should remain constant. nominal interest rates should increase. real interest rates should increase.

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1. In the reaction, $ \mathrm{HClO}_{3}+\mathrm{N}_{2} \mathrm{H}_{4} \rightleftharpoons \mathrm{ClO}_{3}^{-}+\mathrm{N}_{2} \mathrm{H}_{5}{ }^{+} $, which species are an acid-base pair? a. $ \mathrm{HClO}_{3}, \mathrm{~N}_{2} \mathrm{H}_{4} $ b. $ \mathrm{N}_{2} \mathrm{H}_{4}, \mathrm{ClO}_{3}{ }^{-} $ c. $ \mathrm{HClO}_{3}, \mathrm{~N}_{2} \mathrm{H}_{5}{ }^{+} $ d. $ \mathrm{N}_{2} \mathrm{H}_{4}, \mathrm{~N}_{2} \mathrm{H}_{5}{ }^{+} $ e. $ \mathrm{ClO}_{3}{ }^{-}, \mathrm{N}_{2} \mathrm{H}_{5}{ }^{+} $

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4. (20 pts) Find the impulse response, $h[n]$, of a system with transfer function: $H(z) = \frac{4}{z^2 - \frac{1}{2}z + \frac{1}{16}}$

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Please use the Routh Hurwitz criterion to determine the stability of the system with the following characteristic equation (hint: build the Routh Table). If the system is unstable, please discuss how many roots are located in the right-hand side of the s-plane. Q(s) = s^5 + 2s^4 + 2s^3 + 4s^2 + 11s + 10

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Let Z=5-2i and W=3-7i Find Z \times W (Show all steps) (3 Points)

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Air enters a diffuser with a velocity of 309.3 ft/s and temperature of 84 Fahrenheit. If the diffuser was isentropic, the outlet velocity would be 1.7 ft/s. However, the diffuser only has an isentropic efficiency of 89%. What is the air temperature (Fahrenheit) at the outlet of the diffuser? Use specific heat properties for air at 80 Fahrenheit.

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A 6-digit number is to be formed using the digits 1, 3, 5, 6, 8, 9. Each of these digits may be used only once in any 6-digit number. Find how many different 6-digit numbers can be formed if there are no restrictions.

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mikayla e.