Sign In
Ask Question
Chemistry
Tucker Gregory
21 August, 15:04
How does a metric prefix modify a unit?
+1
Answers (
1
)
Sasha Smith
21 August, 18:27
0
Answer:Locate the row corresponding to known unit of torque along the left of the table. Multiply by the factor under the column for the desired units. For example, to convert 2 oz-in torque to n-m, locate oz-in row at table left. Locate 7.062 x 10-3 at intersection of desired n-m units column. Multiply 2 oz-in x (7.062 x 10-3) = 14.12 x 10-3 n-m.
Converting between units is easy if you have a set of equivalencies to work with. Suppose we wanted to convert an energy quantity of 2500 calories into watt-hours. What we would need to do is find a set of equivalent figures for those units. In our reference here, we see that 251.996 calories is physically equal to 0.293071 watt hour. To convert from calories into watt-hours, we must form a "unity fraction" with these physically equal figures (a fraction composed of different figures and different units, the numerator and denominator being physically equal to one another), placing the desired unit in the numerator and the initial unit in the denominator, and then multiply our initial value of calories by that fraction.
Explanation:
Since both terms of the "unity fraction" are physically equal to one another, the fraction as a whole has a physical value of 1, and so does not change the true value of any figure when multiplied by it. When units are canceled, however, there will be a change in units. For example, 2500 calories multiplied by the unity fraction of (0.293071 w-hr / 251.996 cal) = 2.9075 watt-hours.
Comment
Complaint
Link
Know the Answer?
Answer
Not Sure About the Answer?
Get an answer to your question ✅
“How does a metric prefix modify a unit? ...”
in 📙 Chemistry if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers
You Might be Interested in
Which is the oldest? A. Precambrian B. Mesozoic C. Paleozoic D. Cenozoic
Answers (1)
What is the lewis dot structure for Ca3P2 and Al2O3?
Answers (1)
Naturally occurring indium has two isotopes, indium-113 (112.9040580 amu) and Indium-115 (114.9038780 amu. The atomic mass of indium is 114.82 amu. What is the percent of indium-115? a) 4.32% b) 48.4% c) 95.7% d) 0.973%
Answers (1)
Which property of the water molecule causes two water molecules to be attracted to each other?
Answers (1)
What is a Formula relating pressure force and area
Answers (1)
New Questions in Chemistry
Cup A and cup B are identical. They contain equal volumes of soup at equal temperatures. Both cups are put in a refrigerator. Cup A has a lid, but cup B does not. Which statement best explains why cup A will cool more slowly than cup B? A.
Answers (1)
Water is intentionally present in a state where its molecules are far apart during a change of state is molecule slow down which change of state has most likely taking place
Answers (1)
What determines the definite energies of electrons?
Answers (1)
What is the name of the product of the hydrogenation of 3,6,6-trimethyl-4-nonene?
Answers (1)
Which of the following is the best name for SO3? a. sodium trioxide b. sulfur trioxide c. monosodium trioxide d. monosulfur trioxide
Answers (1)
Home
»
Chemistry
» How does a metric prefix modify a unit?
Sign In
Sign Up
Forgot Password?