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- Po = 25 uc/m³ is distributed uniformly through a certain region. If V=50 at y = 2 and V= 90 at y = 5, &, = 2. a- Give the solution and calculate V, E. b- Draw V, Ē, IE with respect to y-axis. c- Now if p₂ = 0, give the solution and calculate V, Ē.Consider the equation a=6πb/q√17 relating the variables a, b and q. If a scientist does an expirment in which b is held constant, q is varied, and a is measured. A. Identify the independent and dependent variables. B. What functional relationship is being testing? C. What should be plotted in order to confirm this relationship? (order matters)Ideal gases are often studied at standard ambient temperature and pressure (SATP). The International Union of Pure and Applied Chemistry (IUPAC) defines SATP to be T = 25° C and P = 100 kPa. a. Calculate N/V (in particles per cubic meter) for an ideal gas at SATP b. How many atoms of an ideal gas at SATP are there in one cubic centimeter?
- Growth of yeast cells In a controlled laboratory experiment, yeast cells are grown in an automated cell culture system that counts the number P of cells present at hourly intervals. The num- ber after t hours is shown in the accompanying figure. 250 200 150 100 50 0 1 2 3 4 5 6 7 a. Explain what is meant by the derivative P'(5). What are its units? b. Which is larger, P'(2) or P'(3)? Give a reason for your answer. c. The quadratic curve capturing the trend of the data points (see Section 1.4) is given by P(t) = 6.10r2 – 9.28t + 16.43. Find the instantaneous rate of growth when t = 5 hours.h: Find each of the following values Vmax, T, F, Vrms, Vdc if V = 200sin (340t) hin - хешл(a) A person’s blood pressure is measured to be 1202mmHg . What is its percent uncertainty? (b) Assuming the same percent uncertainty, what is the uncertainty in a blood pressure measurement of 80 mm He?
- 5. Bir F = (2î+ 3j)N kuvveti z-ekseni boyunca uzanan sabit bir eksen etrafında dönebilen bir cisme uygulanıyor. Kuvvet, ř = (4î + 5j)m noktasına uygulanırsa, z-eksenine göre net torku ve büyüklüğünü hulunuz.Po = 25 μc/m³ is distributed uniformly through a certain region. If V = 50 at y = 2 and V= 90 at y = 5, &, = 2. a- Give the solution and calculate V, E.A 11-inch candle is lit and burns at a constant rate of 1.3 inches per hour. Let t represent the number of hours since the candle was lit, and suppose R is a function such that R(t) represents the remaining length of the candle (in inches) t hours after it was lit. a. Write a function formula for R in terms of t. R(t)=11-1.3t Preview b. What is the domain of R relative to this context? Enter your answer as an interval. [0,8.46] Preview c. What is the range of R relative to this context? Enter your answer as an interval. Preview no answer given d. What is the domain of R¯ relative to this context? Enter your answer as an interval. |其 Preview e. What is the range of R1 relative to this context? Enter your answer as an interval. Preview f. Solve R(t) = 6.2 for t. t = 3.69 Preview g. What does your solution in part (f) represent in this context? Select all that apply. How many hours since the candle was lit when it is 6.2 inches long. * The length of the candle (in inches) 6.2 hours after…
- A A A A I. If A = 4x + 2y and B and B` =− 2x + 4z, what are Ø – B`, A¯ • B`, and A × B¯? II. If E = k 29 what is – E dr if k and a are constants? k III. If V = what is 9 r α dV dr ∞ if k is a constant?The pressure, P of an ideal gas, can be expressed as P = nRT/V where n is the number of moles, T is the temperature, V is the volume and R = 8.314JK^-1 mol^-1 is the ideal gas constant. a) Find the expression for deltaP in terms of deltan, deltaT and deltaV: deltaP = deltan + deltaT + deltaV b) Suppose that n = 1, V = 1m^3 and T = 300K initially. If n and V change to 9/5 and 7/10m^3 respectively, estimate the change in T(K) required to keep P constant.Problems Q1: Calculate electrons and holes concentration in a germanium sample If T=300 K, Na-5×10¹%/m³, N₁-0. Assume that n=2.4×10¹⁹/m³. (Ans: 5.97×10¹⁹/m³, 9.65×10¹8/m³)