PHYS2091_U4 AS(1)

ASSESSMENT TIME!  Deriction: Solve the following problems using Polya's four-step problem-solving strategy. 1. A baseball team won two out of their last four games. In how many different  orders could they have two wins and two losses in your games? ▫Understand the problem  ▫Devise a plan ▫Carry out the plan ▫Review the solution    2. Determine the digit 100 places to the right of the decimal point in the decimal representation 7/24. ▫Understand the problem  ▫Devise a plan ▫Carry out the plan ▫Review the solution    3. The product of the ages,in year's of three teenagers is 4590. None of the teens have the same age. What are the ages of the teenagers? ▫Understand the problem  ▫Devise a plan ▫Carry out the plan ▫Review the solution

Please answer #18 Analyze the problems carefully, then solve them. Be systematic when answering. Write the given, label them; the required; and all calculations pertinent to the problem. Express your numerical answers with the appropriate number of significant figures.

Q3: Consider evaluation of different temperatures of solar photovoltaic/thermal system (PVT) as shown in Figure 1(a). The following set of differential equations represent energy balance equations to be solve using matrices and eigenvalues using MATLAB (or Octave): dTglass = -0.75Tolass + 0.75TpvtT dt (1) dTpyT = - dt 1.18Tglass – 22TPVT + 23Twax (2) dTwax = 127glass + 18Tpyt – 19 Twax dt (3) Where, Tatass, Tpyr, and Twax, are temperatures illustrated in Figure 1(b). At time t=0 the initial conditions are Tatass = 35 , TpyT = 33, and Twax = 31 °C. Call seppty Ia tree water Tank Glass PVT Expu Nane PCMPVT Callector Tub Tepe Sterg Tak e Ma Nanou Hest Eschanger Container Teket vae Pump for draie (a) (b) Figure 1. (a) Schematic diagram of the nano-PCM and nanofluid PVT system, (b) mathematical model in context of the PVT collector: glass, PV, wax layer and tube coil, respectively [1].

Part A Learning Goal: To understand and use exponential decays. Exponential decay occurs when a quantity y is proportional to the number e taken to the power -t/T. The quantity T is known as the time constant. So we say that y equals A times the quantity (e to the power of minus t over T) and write this mathematically as y = Ae-T/T, where A is a constant. SCALING Whenever t increases by one time constant, y decreases by a factor of 1/e. For instance: • At time t = 0, y = A. • Increasing time to t = 7, reduces y to A/e. ⚫ A further increase to t = 2T reduces y by another factor of 1/e to A/e². Generally, we can say: At t = nT, y has the value A/en. LIMITS As t becomes large, y becomes very small and approaches zero. Consider the case when the constant A = 3 and 7 = 4. Plot the graph of y = 3e-t/4 at each available point from t = 0 to t = 10. + * 血 No elements selected 4.0 3.0 y 2.0 1.0 0 2.0 4.0 6.0 8.0 10.0 t

6 identical spherical water droplets of radius 22 mm combine to form a single spherical droplet Determine the radius of the combined droplet to 3 significant figures. Part A Iνα ΑΣΦ mm

1selde 16544025&OpenVellumHMAC=4a2df41ba478ba143188f2d005dd72fb#10001 ouTube M Gmail O Maps O Web design tutori. W MATH180: HW08-. Problem 10.38 8 of 8 > Consider the process shown in (Figure 1). Suppose E1 = 2 J. I Review I Constants Part A What is the final kinetic energy of the system for the process shown in the figure? Sharing Express your answer with the appropriate units. gs HÀ ? ols > K; = Value Units Figure Submit Request Answer < Return to Assignment Provide Feedback E (J) 4E, 3E, ЗЕ, 2E E, %3D K, + U, + West = K, + U, + AE %3D ext P Pearson un.masteringphysics.com/myct/itemView?assignmentProblemID=15049450o5 Show All Document (..pdf MacBook Pro DD $12 DI F11 F10 F9 FB 000 F6 F7 F5 F4 F3 F2 F1 & delete %3D %24

How to solve it? Step by step plz

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.

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.

Practice Task 1. Consider the following satements below. Express each number in standard notation or in scientific notation as indicated. Express your solution. 1. The length of an electronic component is 0.0001265 mm. Write this in scientific notation. 2. The diameter of human immunodeficiency virus (HIV) os 0.00012 mm. What is the diameter if HIV in scientific notation? 3. Rocks around Mayon Volcano aged more than 20 000 000 years old. Express this number in scientific notation.4. The friction between the ocean and the ocean floor due to tides is causing the Earth's rotation to slow down by about 2 x 10-8 seconds per day. What real number is equivalent to 2 x 10-8?5. The radius of a hydrogen atom is 2.5 x 10-11, Express this number in standard notation.

Write an explanation or narration about the given problem why the problem got these answers shown in the photos. Narrate the solution in the given picture below. The narration must include the following parts: 1. Dissect the problem by explaining the illustration 2. Identify the given variables and the required ones 3. Explain the solution 4. Double check the solution by explaining why the values makes sense or using another way to verify the answer. Problem: (The answer to this question is in the given picture) When a 58-g tennis ball is served, it accelerates from rest to a speed of 45 m/s. The impact with the racket gives the ball a constant acceleration over a distance of 44 cm. What is the magnitude of the net force acting on the ball?

Write an explanation or narration about the given problem why the problem got these answers shown in the photos. Narrate the solution in the given picture below. The narration must include the following parts: 1. Dissect the problem by explaining the illustration 2. Identify the given variables and the required ones 3. Explain the solution 4. Double check the solution by explaining why the values makes sense or using another way to verify the answer. Problem: (The answer to this question is in the given picture) 1. A car travels to the east at a constant 50 km/h for 100 km. It then speeds up to 100 km/h and is driven another 100 km. a. How long did the car took to travel 100 km at a speed of 50 km/h? Ans. 2.0 h b. What is the car’s average velocity during the time interval? Ans. 67 km/h (E]

Write an explanation or narration about the given problem why the problem got these answers shown in the photos. Narrate the solution in the given picture below. The narration must include the following parts: 1. Dissect the problem by explaining the illustration 2. Identify the given variables and the required ones 3. Explain the solution 4. Double check the solution by explaining why the values makes sense or using another way to verify the answer. Problem: (The answer to this question is in the given picture) A person with a black belt in karate has a fist that has a mass of 0.70 kg. Starting from rest, this fist attains a velocity of 8.0 m/s in 0.15 s. What is the magnitude of the average net force applied to the fist to achieve this level of performance?

6.4. Which one of the following equations is dimensionally homogenous? Show your proof. a. F = ma b. F=m F(t, -1)= m(V-) d. F. (V-V) F = m e. (1,-4) where F-force (N) mmass (kg) a acceleration (m's) V velocity (m's) R-radius (m) lime (s)

AutoSave ff FISI-3011-Examen-Parcial-3-PARTES B C (1) - Compatibility M... P Search File Home Insert Draw Design Layout References Mailings Review View Help Share Comments OFind S Replace X Cut A^ A Aav As AaBbCcDd AaBbCcDd AaBbC AaBbCcI AaB AaBbCcD AaBbCcDd Calibri v 11 Copy Paste Dictate В IUvab х, х А A I Normal 1 No Spac. Heading 1 Heading 2 Title Subtitle Subtle Em... - A Select v S Format Painter Clipboard Font Paragraph Styles Editing Voice 1. An m-mass body slides a distance of d along a horizontal surface. The work done by the force of gravity is: а. mgd b. Zero -mgd (mg sene)d С. d. е. none of the above 2. Total work on a body is positive if: the resulting force has the same direction of displacement Theresulting force is perpendicular to displacement Theresulting force has opposite direction to displacement Theresulting force is zero the object does not move a. b. С. d. е. 3. The unit of kinetic energy can be expressed as: kgm/s kgm/s? m/(kgs) kgs? 2/s'kgs? а. b. С. d. е. A…

Force on q, by q, = 79.889N Force on q, by q, = 79.889N 91 O cm 3 4 5 7 8 10 Charge 1 Charge 2 Force Values -4 μC 2 μ Scientific Notation -10 10 -10 10 1 cm

Pls help ASAP. Pls show all work and calculations and include units for final answers.

Pls help ASAP. Pls show all work and explain thoroughly on what equation is being used and how you come up with the answer. Also, pls underline or square the final answers.

Need a good explanation and step by step solution for this problem, not just copied out of the solutions manual.

Please use the origin (0,0) as the starting point of the graph and 2pi on the x-axis as the point where th graph ends. Find a function of the form y = Asin(x) or y = Acos(x) whose graph matches the function below. 51 37/2 -2 -3 -4 -5+ Give an exact answer using fractions and/or multiples of pi as necessary. y = OType here to search

w = FjAc = F .Aë , W = m(v;)* - m(u,)* , v 1 zm(us)* - m(v,)* , W = Problem 1: (a) à = 3â – 2ŷ, B = 4â& – 5ŷ. à ·B =? Answer: 22 (b) à = -2â + 4ŷ, B = 3âu – lŷ. Ā·B =? Answer: –10 (c) à = 5â – 3ŷ, B = -3â – 5ŷ. ÷B =? Answer: 0 1 | F,dx , W = F. dř , F, dU W = -AU dx d = 4m F = 20 N 0 = 30° m = 4 kg Hk = 0.5) m = 2 kg F = 40 N Hk = 0.2 Ө — 30° Problem 2: In the figure above on the left we have a force F = 20 N pulling a box to the right at an angle 0 = 30° above the horizontal. The box has a mass m = 2 kg, the coefficient of kinetic firction between the box and the ground is uk = 0.2, and the block moves a distance d = 4 m to the right. (a) What is the work done by the force F? Answer: 69.3 J (b) What is the normal force from the ground? Use g = 10 m/sec² Answer: 10 N (c) What is the work done by the kinetic friction force? Answer: -8 J (d) What is Wnet, the net work done on the box? Answer: 61.3 J (e) The box has an initial speed of 4 m/sec. What is the speed of the box after it has…

Document1 - Microsoft Word (Product Activation Failed) File Home Insert Page Layout References Mailings Review View a ? W % Cut - A A A Find - Aal Calibri (Body) - 11 Aa AaBbCcDc AaBbCcDc AaBbC AaBbCc AaB AaBbCcL E Copy ae Replace Paste B I U U - abe x, x² A ab A I Normal I No Spaci. Heading 1 Change . Heading 2 Title Subtitle Format Painter Styles - Select - Clipboard Font Paragraph Styles Editing L • 2. 1:. I' 2: 1 : 3:1 • 4.I 5.1' 6.1'7 I'8: 1 9 ' 10.L· 11: 1 ' 12.'13 · L 14: 1· 15.1A L'17:1 18 STATISTICAL AND THERMAL PHYSICS PLEASE HELP ANSWER ALL QUESTIONS (a) Describe some of the simple thermometers with which you are familiar. (b) On what physical principles do these thermometers operate? (c) What requirements must a thermometer have to be useful? all 02:38 PM 2022-04-27 Page: 1 of 1 国 昆言 E E E E +) Words: 9 100% -

According to Timothy Treadwell in 2001 "Now, the bears I live with average, the males are on average twelve hundred pounds. They're the largest bears in the world and they've been clocked at 41 [mph] and they've run a hundred meter dash in 5.85 seconds which human on stimulants doesn't even approach. a. Compute the speed of a grizzly bear using Mr. Treadwell's hundred-meter statement. b. Compute the momentum of a grizzly bear using the speed you calculated in part a. and the average mass stated by Mr. Treadwell. c. How fast would a 250 lb man have to run to have the same momentum you calculated in part b? d. How fast would a 4000 lb car have to drive to have the same momentum you calculated in part b?

For the following compartment model, what is the numerical value of the derivative (in Bq/hr) at t=0, 10, and 100 hours if q(0) = 100 Bq and k = 0.02/hr? Be mathematically precise here. Q--k->

if E = ((4,5+ j9, 8)â, + (2,5 + j9, 9)ây )e-Jör², T=-0,5 and n1=4,7, then |Pa, " =?| %3D O a. 2595,054 W O b. 110,275 W O c. 5174,713 W d. 5,866 W e. 2,840 W