Question

An object whose temperature is 75°C cools in an atmosphere of constant temperature 25°C at the rate kθ, where θ being the excess temperature of the body over the temperature. If after 10 minutes, the temperature of the object falls to 65°C, find the temperature after 20 minutes. Find the time required to cool down to 55°C.

Name: an object whose temperature is 75c cools in an atmosphere of constant temperature 25c at the rate k where being the excess temperature of the body over the temperature if after 10 minutes th 87949
Uploaded: 2022-06-30T01:41:55-08:00
Duration: 7 min 16 s
Channel: Aidan Mcnabb
Description: an object whose temperature is 75c cools in an atmosphere of constant temperature 25c at the rate k where being the excess temperature of the body over the temperature if after 10 minutes th 87949

          An object whose temperature is 75°C cools in an atmosphere of constant temperature 25°C at the
rate kθ, where θ being the excess temperature of the body over the temperature. If after 10
minutes, the temperature of the object falls to 65°C, find the temperature after 20 minutes. Find
the time required to cool down to 55°C.

Added by Jennifer S.

University Physics with Modern Physics

Hugh D. Young 14th Edition

Instant Answer

Solved by Expert Aidan Mcnabb

06/30/2022

Step 1

Step 1: Write down the given information Initial temperature of the object, T1 = 75°C Temperature of the atmosphere, Ta = 25°C Rate of cooling = kθ After 10 minutes, the temperature of the object, T2 = 65°C Show more…

Show all steps

Thanks for your feedback!

An object whose temperature is 75°C cools in an atmosphere of constant temperature 25°C at the rate kθ, where θ being the excess temperature of the body over the temperature. If after 10 minutes, the temperature of the object falls to 65°C, find the temperature after 20 minutes. Find the time required to cool down to 55°C.