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- 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.Not sure what I'm doing wrong. I know that Fc= (m)(v^2/r) with: m= 0.0011kg r=0.84/2 Fc=3.9N but when I plug all that into the equation, I'm being told it's wrong. What am I missing?I'm not understanding how you are getting the v in this problem. I understand you multiply the inverse of 1/v, but can't understand what v is and how you determine that number?
- We are going to make a simple approximation of the number of atoms in the universe. 1. Assume all the atoms in the universe are hydrogen. (In actual practice, over 75% of the atoms in the universe are hydrogen.) 2. Assume the sun is a typical star (made of pure hydrogen) has a density of 1.4 g/cm3 and is a sphere with a radius of 7.0*108m 3. Assume that there are 100 billion stars in our Milky Way galaxy that are identical to our sun. 4. Assume that there are 10 billion galaxies in the universe identical to our Milky Way galaxy.Pluto, which is 300 light minutes away? the electron neutrino and that of the muon 2. Suppose that the difference between the square of the mass neutrino is m, – m. a2 and that between muon and tau neutrino is m – m?, = b2. (a) What are the dimensions of a and b? (b) Find the values of mves Myµ and that will minimise the sum mv. + mv,+mvµ. 3. The black body energy spectrum is written as 8th e(f) = 3 exp(hf/kT) – - 11%A9 li. t LTET 4G+ Vol) O A X O U 9:-7 Second H.W.pdf 1. Draw and label the vector with these components. Then determine the magnitude and angle of the vector. a- Az = 3 ,A, = -2 b- B, = -2 ,B, = 2 2. What is the speed of horse in meter per second that runs a distance of 1.2 miles in 2.4 minutes? 3. A car moving along X- axis according on the function: X (t) = 2 t2 + 5t +7 on [1,2] Find: a- The average velocity. b- The acceleration at 3s. 4. Julie is walking around a track at a 2m/s for some exercise. She then decides to start jogging so she accelerates at a rate of 0.5m/s? for 3 seconds. How far did Julie travel from the time she started to accelerate to the end of the 3 seconds? 5. Ralph uses a 2000 to do this. force to push his car along a road for 1000 m. It takes him500 s a- Calculate the amount of work that Ralph did on the car. b- Calculate the amount of power that he generated. II
- length period Vlength cm t Vcm Vx 1 19 0.8625 4.358898943540674 2 24 0.9667 4.898979485566356 3 29 1.1083 5.385164807134504 4 34 1.1958 5.830951894845301 5 39 1.2292 6.244997998398398 6 44 1.3625 6.6332495807108 49 1.4083 7 8 54 1.4542 7.3484692283495345 9 58 1.5375 7.615773105863909 10 63 1.6792 7.937253933193772 11 68 1.6875 8.246211251235321 period vs length 1.7 1.6 1.5 1.4 1.3 1.2 1.1 1 0.9 20 30 40 50 60 70 length (cm) Display Curve Fit Uncertainties period Curve: t = AVI A : 0.203 RMSE : 0.0313 s (s) popadThat did answer a lot of questions. Thank you. But where do you derive the equation E=(K|q|)/r? My book says E=(K|q|)/r^2. I tried re-arranging some equations to get your equation, but I can't figure it out. Thanks.18. The number 235.051 is the sum from adding 14.3 + 0.001 + 220.75, following the rules in significant numbers it will give: 235.051 235 O 235.05 O 235.1
- Earth has a mass of 5.98*1024 kg.The average mass of the atoms that make up Earth is 40 u. How many atoms are there in Earth?The answer is not 491400 Pa. I keep getting 529740 Pa when I do the calculation myself, but that is not the right answer either. Please help with a detailed explanation. Thank you!There are two parts to this question. The answers are not 4.690117253 abd 0.2742758627. Please help!