DwnO Welcome to West C..O Log In to Canvasek 85. Suppose there is a pack of juices in the trunk of your car. It is summer in Sylmar, so the pack ofjuices have a temperature of 120° F. To cool them down, you put them in a freezer of temperature5 F. After 10 minutes you check a can of juice, and find it to have a temperature of 90° F. Howlong will it take the juices to freeze to 32° F?dT= k(T -T),T(0)= T,dtHint: Use the Newton's Law of CoolingI| Proctorio is sharing your screen.Stop sharingHide99+

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Answered: 5. Suppose there is a pack of juices in…

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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14. Sharon is at home making pizza. She calls Spencer and tells him that she is taking the pizza out from the oven right now. The pizza has been heated to 450° F and will be placed in a 75° F room. Spencer needs to get back home in time so that they can enjoy the pizza at a warm temperature of 110°F. The cooling rate of pizza is k=0.35. How much time does Spencer have? Round to the nearest tenth. a. 7.5 minutes b. 5.5 minutes c. 6.8 minutes d. 8.4 minutes
8. A baked cake is taken out of a 350° oven and placed on a table in a 70°F room. It cools according to Newton's law of cooling. Ten minutes later the temperature is 315°F. What is the temperature of the cake after 30 minutes?
1. Solve for the variable x. F = kx – kxo F-kxo A. x = F-Kxo B. x = k F+ kxo c. O C. x=: F+ kxo O D. x=' k
3. The pressure (in kPa) in a sealed vessel full of gas is 64 P = where V is the volume of the vessel in liters. If we can measure the volume of the vessel but not the pressure, any error in our measurement of V will cause error in the value of P that we calculate. Find formulas for the absolute and relative errors in P when we measure the volume to be V with error dV.
1. You make a pudding for a dinner party and put it in the refrigerator at 5 P.M. (t = 0). Your refrigerator maintains a constant temperature of 40°. The pudding will be ready to serve when it cools to 45°. When you put the pudding in the refrigerator you measure its temperature to be 190°, and when the first guest arrives at 6 P.M., you measure it again and get a temperature reading of 100°. Based on Newton's Law of Cooling, when is the earliest you can serve the pudding? Give your answer to the nearest minute.
Solve this
6. The wind chill factor is the temperature, in degrees Fahrenheit (°F), a human feels based on the air temperature in degrees Fahrenheit, and the wind velocity, v, in miles per hour. If the air temperature is 40°F, then the wind chill is given by w(v) = 60.6 – 18.64v0.16. Find w'(30). Use correct units to explain the meaning of w'(30) in terms of wind chill.
1. Miles' neighbor, Andy says his maximum heart rate is 90 BPM at 50% intensity. Use your model to determine how old Andy is. Be prepared to explain HOW you got the answer. V=1.37⋅y+17.8V=1.37⋅y+17.8 V = value of CA wine market in billions y = years since 2000 Q. In what year should the CA wine market be worth $45 billion (assuming this equation applies at that time)?
for y = + VE Find hp da
How much time is needed for a 15,000 W engine to do 1,800,000 J of work? (Power: P = W/t) O 0.008 s O8s O 120 s O 1,785,000 s Mark this and return Save and Exit Next W ContentViewers/AssessmentViewer/Activit.. 8

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