Coffee at temperature 180°F is cooling in a room with constant temperat 75°F. If it takes for the coffee temperature to reach 155°F after 5 minutes, additional time is needed for the coffee to cool to 130°F?

Q: On a day at the beginning of the winter the temperature is 5 degrees below zero. The next day the…

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Q: A thermometer reading 10°C is brought into a room with a constant temperature of 32°C. If the…

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Q: A cake is removed from an oven at 200°F and left to cool at room temperature, which is 60°F. After…

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Q: Pure water has a pH value of 7.0. How many times more acidic is milk, with a pH value of 6.4, than…

A: Given that:      pH value of Pure water = 7.0      pH value of Milk            = 6.4

Q: An airplane whose speed in still air is 760 kph can travel 2000 km flying with a tailwind, in the…

A: We use the formula  Distance = speed × time.

Q: Define C.O.P. of the simple vapor compression refrigeration cycle R-717. The evaporation temperature…

A: We have to find cop....

Q: QUESTION 2 Volume of a flat ended compressed air drum is 15m3. It experiences a maximum stress of…

A: Given that Volume of a flat ended air drum = 15 m3. σmax=145 MN/m2P=2.2 MN/m2L=4D To find wall…

Q: For some people, brisk walking is about 120 steps per minute. How many steps is that per second?

A: Speed of brisk walking is about 120 steps per minute

Q: CALCULATE THE COOLING RATE, if the person found dead at 7:50 am. The room temperature is 68 degrees,…

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Q: Every day the teacher drinks a cup of coffee before her 9:00 class. Suppose the temperature is 200⁰F…

A: Consider the following:

Q: A pizza pan is removed at 7:00 PM from an oven whose temperature is fixed at 425°F into a room that…

A: Since you have uploaded multiple questions according to our guidelines we have solved first…

Q: A water at a boiling temperature of 100°C was left to cool in a room temperature 22°C. Six minutes…

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Q: A body whose temperature is 50°F is placed in a warming oven whose temperature is 100°F. After 5…

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Q: 7. An initial deposit was placed into a crypto-account that accrues interest compounded…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: How many seconds will elapse between seeing a lightening and hearing the thunder, if the lightening…

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Q: A body cools from 60°C to 50°C in 15 mins in air which is maintained at 30°C. How long will it take…

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Q: A small metal bar, whose initial temperature was 15° C, is dropped into a large container of bowling…

A: We know that, the standard form of Newton's law of cooling: T-T∞=T0-T∞e-kt Where; T∞ is the ambient…

Q: lation of bacteria doubles e population be at the end o-

A: Given initial population of bacteria is 45, also, the growth doubles after every 18 minutes. Let r…

Q: When a cold drink is taken from a refrigerator, its temperature is 6°C. After 20 minutes in a 25°C…

A: The temperature of the room is Initially the temperature of the cold drink is After  minutes the…