CQ 13A hot metal bar has temperature 260°C. The metal bar is placed in a 20ºC roomwhere it cools down over time. Use Newton's Law of Cooling as a model for thiscooling process.1. Sketch a graph of the temperature with respect to time. Clearly label key features onthe graph.2. Which of the following statements represents this cooling process?(multiple choice - choose the correct statement)a. The temperature is decreasing at an increasing rate.b. The temperature is decreasing at a decreasing rate.c. The temperature is increasing at an increasing rate.d. The temperature is increasing at a decreasing rate.3. Suppose that when the metal bar reaches a temperature of 130°C, it is coolingat a rate of 1°C per minute. Construct the model using Newton's Law ofCooling for the temperature as a function of time.4. How long did it take for the metal bar to reach a temperature of 130°C?

Given that a hot metal has a temperature of 260°C. It is placed in a room where it is cooled down…

Answered: CQ 13 A hot metal bar has temperature…

Mathematics For Machine Technology

8th Edition

ISBN:9781337798310

Author:Peterson, John.

Publisher:Peterson, John.

Chapter87: An Introduction To G- And M-codes For Cnc Programming

Section: Chapter Questions

Problem 26A

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