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Questions and Answers
What is the standard form of 0.0038?
What is the standard form of 0.0038?
- 38 × 10^-2
- 3.8 × 10^3
- 3.8 × 10^2
- 38 × 10^-3 (correct)
If you move the decimal point in a decimal two places to the right, what should you do?
If you move the decimal point in a decimal two places to the right, what should you do?
- Multiply by 10^-3
- Multiply by 10^3
- Multiply by 10^2
- Multiply by 10^-2 (correct)
In the standard form, what is the characteristic if n = 7.5 × 10^-2?
In the standard form, what is the characteristic if n = 7.5 × 10^-2?
- 2
- -2 (correct)
- -1
- 1
What is the standard form of 0.000025?
What is the standard form of 0.000025?
If you move the decimal point in a decimal three places to the left, what should you do?
If you move the decimal point in a decimal three places to the left, what should you do?
For a decimal in standard form, what range does the mantissa 'm' belong to?
For a decimal in standard form, what range does the mantissa 'm' belong to?
What is the equivalent of 1 joule in ergs?
What is the equivalent of 1 joule in ergs?
How many grams are in a metric tonne?
How many grams are in a metric tonne?
What is the equivalent of 1 mile in kilometers?
What is the equivalent of 1 mile in kilometers?
How many quarts are in a gallon?
How many quarts are in a gallon?
What is the equivalent of 1 British thermal unit in joules?
What is the equivalent of 1 British thermal unit in joules?
How many feet are in a kilometer?
How many feet are in a kilometer?
What is the amount of heat required to raise the temperature of 5 grams of water from 15.50°C to 20.50°C?
What is the amount of heat required to raise the temperature of 5 grams of water from 15.50°C to 20.50°C?
If the specific heat of a substance is 0.5 cal/g°C, how much heat is needed to raise the temperature of 10 grams by 10°C?
If the specific heat of a substance is 0.5 cal/g°C, how much heat is needed to raise the temperature of 10 grams by 10°C?
How much energy is required to raise the temperature of 2 moles of water by 5 K? (Given: 1 cal = 4.184 J)
How much energy is required to raise the temperature of 2 moles of water by 5 K? (Given: 1 cal = 4.184 J)
If a substance has a specific heat of 25 J/kg°C, how much energy is required to raise the temperature of 2 kg by 10°C?
If a substance has a specific heat of 25 J/kg°C, how much energy is required to raise the temperature of 2 kg by 10°C?
What is the mass of a substance that requires 5000 J of energy to raise its temperature by 20°C if its specific heat is 0.1 J/g°C?
What is the mass of a substance that requires 5000 J of energy to raise its temperature by 20°C if its specific heat is 0.1 J/g°C?
How many kilocalories are needed to raise the temperature of 1 kg of water by 20 K? (Given: 1 kcal = 4184 J)
How many kilocalories are needed to raise the temperature of 1 kg of water by 20 K? (Given: 1 kcal = 4184 J)
If a substance has a specific heat of 0.05 kcal/kg°C, how much energy is required to raise the temperature of 5 kg by 100 K?
If a substance has a specific heat of 0.05 kcal/kg°C, how much energy is required to raise the temperature of 5 kg by 100 K?
What is the weight of a substance that requires 1000 calories of energy to increase its temperature by 10°C if its specific heat is 0.5 cal/g°C?
What is the weight of a substance that requires 1000 calories of energy to increase its temperature by 10°C if its specific heat is 0.5 cal/g°C?
How many joules are needed to heat 500 grams of a substance with a specific heat of 20 J/kg°C by 30°C?
How many joules are needed to heat 500 grams of a substance with a specific heat of 20 J/kg°C by 30°C?
What is the amount of heat energy needed to raise the temperature of 2 moles of a substance by 15 degrees Celsius if its specific heat capacity is 30J/mol°C?
What is the amount of heat energy needed to raise the temperature of 2 moles of a substance by 15 degrees Celsius if its specific heat capacity is 30J/mol°C?
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