Modern Physics> A hot liquid takes 5 minutes to cool from...

A hot liquid takes 5 minutes to cool from 70(degree)C to 60(degree)C. the time taken by the same liquid to cool from 60(degree)C to 59(degree)C will be(take surrounding temperature is 20(degree)C)

theja , 12 Years ago

Grade 9

1 Answers

Arun Kumar

$T(t)=T_{A}+(T_{H}-T_{A})e^{-kt}$

$60-20=50e^{-k5}=>40=50^{-k5}$

$39=40e^{-kt}$

Equation is set just take log and divide to get the answer.

Arun Kumar

IIT Delhi

Askiitians Faculty

Last Activity: 12 Years ago

LIVE ONLINE CLASSES

Prepraring for the competition made easy just by live online class.

Full Live Access

Study Material

Live Doubts Solving

Daily Class Assignments

A particle is projected in vertical plane such that after 5 seconds its velocity becomes horizontal. The maximum height attained by the projectile from point of projection is n3 m. The value of n is _______. (g = 10 m/s2)

modern physics

1 Answer Available

Last Activity: 3 Years ago

Two particles approach each other from very large distance as shown, . if the least separation between the particles is b, what is the speed of M in center of mass frame when particles are closest? (gravity negligible)

modern physics

1 Answer Available

Last Activity: 3 Years ago

Can the sum of two equal vectors be equal to either vector

modern physics

1 Answer Available

Last Activity: 3 Years ago

A nucleus X¹⁸⁴ at rest emitt alpha particle With kinetic energy 9.0MeV. The product Nucleus is Y. The values of Binding energy per nucleon of alpha particle & Y differ by 1.5MeV. The values of Binding energy per nucleon of X & Y differ by (n÷230) MeV, then n is

modern physics

1 Answer Available

Last Activity: 4 Years ago

SUBJECT: PROBLEM BASED ON LINE DETECTION.
Query: How to apply all the filters for line detection on the following piece of image (provided below)? Explain its Observations to comment on its results.

modern physics

1 Answer Available

Last Activity: 4 Years ago

View all Questions

Modern Physics> A hot liquid takes 5 minutes to cool from...

A hot liquid takes 5 minutes to cool from 70(degree)C to 60(degree)C. the time taken by the same liquid to cool from 60(degree)C to 59(degree)C will be(take surrounding temperature is 20(degree)C)

theja , 12 Years ago

Arun Kumar

LIVE ONLINE CLASSES

Other Related Questions on modern physics

A particle is projected in vertical plane such that after 5 seconds its velocity becomes horizontal. The maximum height attained by the projectile from point of projection is n3 m. The value of n is _______. (g = 10 m/s2)

modern physics

Two particles approach each other from very large distance as shown, . if the least separation between the particles is b, what is the speed of M in center of mass frame when particles are closest? (gravity negligible)

modern physics

Can the sum of two equal vectors be equal to either vector

modern physics

A nucleus X184 at rest emitt alpha particle With kinetic energy 9.0MeV. The product Nucleus is Y. The values of Binding energy per nucleon of alpha particle & Y differ by 1.5MeV. The values of Binding energy per nucleon of X & Y differ by (n÷230) MeV, then n is

modern physics

SUBJECT: PROBLEM BASED ON LINE DETECTION.Query: How to apply all the filters for line detection on the following piece of image (provided below)? Explain its Observations to comment on its results.

modern physics

A nucleus X¹⁸⁴ at rest emitt alpha particle With kinetic energy 9.0MeV. The product Nucleus is Y. The values of Binding energy per nucleon of alpha particle & Y differ by 1.5MeV. The values of Binding energy per nucleon of X & Y differ by (n÷230) MeV, then n is

SUBJECT: PROBLEM BASED ON LINE DETECTION.
Query: How to apply all the filters for line detection on the following piece of image (provided below)? Explain its Observations to comment on its results.