How Much Heat Must Be Added to a 8

question 61

Multiple Choice

How much heat must be added to a 8.0-kg block of ice at -8°C to change it to water at
The specific heat of ice is 2050 J/kg ∙ °C,the specific heat of water is 4186 J/kg ∙ °C,the latent heat of fusion of ice is 334,000 J/kg,and 1 cal = 4.186 J.

• A)780 kcal
• B)140 kcal
• C)180 kcal
• D)810 kcal
• E)730 kcal

Differentiate between various computing systems based on power and purpose.

Comprehend the foundational principles of binary data representation in computers.

Understand the fundamental differences and uses of input and output technologies.

Gain knowledge about the evolution and future trends in computing technologies.

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Definitions:

Over-optimism

Over-optimism refers to the tendency of individuals to hold an unrealistically positive view of the future or the outcomes of events, which can affect decision-making processes.

Unrealistic Belief

A conviction or expectation that does not align with actual facts or evidence, often based on incorrect assumptions or misinformation.

Slope

A measure of the steepness, incline, or grade of a line, calculated as the ratio of the vertical change to the horizontal change between two points.

Budget Line

A graphical representation of all possible combinations of two goods that can be purchased with a given income and prices.