Suppose that a cup of soup cooled from 90°C to60°C after 10 min in a room where the temperature was 20°C. UseNewton’s Law of Cooling to answer the following questions. Instead of being left to stand in the room, the cup of 90°Csoup is put in a freezer where the temperature is -15°C. Howlong will it take the soup to cool from 90°C to 35°C?
Unitary Method
The word “unitary” comes from the word “unit”, which means a single and complete entity. In this method, we find the value of a unit product from the given number of products, and then we solve for the other number of products.
Speed, Time, and Distance
Imagine you and 3 of your friends are planning to go to the playground at 6 in the evening. Your house is one mile away from the playground and one of your friends named Jim must start at 5 pm to reach the playground by walk. The other two friends are 3 miles away.
Profit and Loss
The amount earned or lost on the sale of one or more items is referred to as the profit or loss on that item.
Units and Measurements
Measurements and comparisons are the foundation of science and engineering. We, therefore, need rules that tell us how things are measured and compared. For these measurements and comparisons, we perform certain experiments, and we will need the experiments to set up the devices.
Suppose that a cup of soup cooled from 90°C to
60°C after 10 min in a room where the temperature was 20°C. Use
Newton’s Law of Cooling to answer the following questions. Instead of being left to stand in the room, the cup of 90°C
soup is put in a freezer where the temperature is -15°C. How
long will it take the soup to cool from 90°C to 35°C?
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