When a cold drink is taken from a refrigerator, its temperature is 5°c. after 25 minutes in a 20°c room its temperature has increased to 10°c. (round your answers to two decimal places.) (a) what is the temperature of the drink after 45 minutes? °c (b) when will its temperature be 16°c? min

a)T=12.77°C

b) t=83.38 min

Explanation:

=5°C

After 25 min, T=10°C  

Air temperature =20°C

We know that cold drink will cool because its surrounding temperature is high .

From Newton's law of cooling

Where K is the constant,T is the temperature at any time t and is the surrounding temperature.

By solving above differential equation

When t=25 min T=10°C

(a) When t=45 min

T=12.77°C

(b) When T=16°C

t=83.38 min

the moon affects the earth gravitation ally, causing certain motions of that body and also producing tides in its ocean and atmosphere. the tidal wave in our atmosphere is, however, far too minute to be an effective cause in any known meteorological phenomenon.

explanation:

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