A (3.60 m) 70.0 30.0° B (2.40 m) Find the magnitude of the vector product A x B Express your answer in square meters. ΑΣφ ? Ax B m2
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Q: how it become 0.829? if i multiply the numbers it will give me 5096?
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I don't understand this question. I had gotten 4.32 as my answer, but it is wrong.
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- Let À = 3.92i + 4.41j and B = -3.02i + -2.43j. What is the angle between À and B measured in degrees. Note that the angle may be greater than 90 degrees. (I understand the basic steps of the question but I keep getting 115.432. My last step was Cos^-1(2.9/22.588)why did you do times 3.2?Express the relationship between 1/do, 1/di, and 1/f as an equation.
- (akt) Answer all with the appropriate number of sigfigs 1) 82.992(0.3890) 2) 1.8120 × 109 + 1.93 × 103 3) log(4.8720 × 109) 4) √(817.03)A light-year (ly) is the distance light travels in one year (at speed of 2.998 ×× 108 m/sm/s ). An astronomical unit (AU) is the average distance from the Sun to Earth, 1.50 ×× 108 km. 1 year = 3.156 ×× 107 s. How many meters are there in 1.70 ly? Express your answer using three significant figures. Express in scientific notation! 1.70 ly = _________________m How many AU are there in 1.70 ly light-year? Express your answer using three significant figures. Express in scientific notation! 1.70 ly = _________________AUHow did we get 1.72 here?
- Given a set of length measurements: 62.1, 62.5, 61.7, 62.6, 62.7, 61.9 cm. Find the standard error for length measurement.Earth has a mass of 5.98*1024 kg.The average mass of the atoms that make up Earth is 40 u. How many atoms are there in Earth?The answer is 30 but I don't know how it arrived at that answer! Please explain