4. The Earth is (approximately) a sphere of radius 6.37 x 106 m. (a) Find the circumference of the Earth in meters. Circle your answer. Then convert it to miles, showing your work and circling your final answer. (b) Find the surface area of the Earth in square meters. Circle your answer. Then convert it to square miles, showing your work and circling your final answer. The surface area of a sphere is 4tr².

Q: A = 2î + 3j + & B = -41 + 23 – k C = 21 – 3j + 4k a) (AX B) · č b) (BX A) c) (AXB) · (CXB)

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Q: Displacement vector A is 4.5 km, North. Displacement vector B is 3.0 km, 50 degree North of West.…

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Q: Determine the constants, A and B: 2x-3/(x-3)(x-4) = A/x-3 + B/x-4

A: We solve the equations by comparision of terms.

Q: Help

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Q: In a two-dimensional plane, vector A is 3 meters due east and vector B is 5 meters, due 36.87…

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Q: Displacement vector A is 350.0 km, north. Displacement vector B is 30.0 km, 50 degrees north of…

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Q: x. ROUND TO TWO DECIMALS

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Q: How to answer d and e

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A: What does she calculate?Given,displacements:A: 72.4 m, 32.0˚ east of north  B: 57.3 m, 36.0˚ south…

Q: Vector A has components Ax = 1.46 and A, = -16.6. What is the magnitude of this vector? JÄ = Find…

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Q: A man walks 40.2974 m directed 208.3565 degrees from the positive x-axis, then he walks 26.4057 m…

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Q: b) Find the direction of - + B, where A = (23.1, 68.9), B = (91.7, -161.0). Express the angle…

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Q: Figure 1 B (15.0 m) Ď (10.0 m) 30.0 53.0 25.0 Ĉ (12.0 m) Á (8.00 m)

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Q: 50.0⁰ 37.0⁰ A (12.0 m) 40.0⁰ -X

A: A = 12 m angle = 37 degrees

Q: Add the following two vectors if Keep a few digits. A= 15 a= 20 degrees B=11N b= 40 degrees B. C= at…

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Q: What is the direction of the final position vector r, measured from North? Use coun- terclockwise as…

A: Given: Vectors as: A→=187 km making an angle 37°with positive x-axis. B→=142 km making an angle…

Q: A = 34 m, B = 34 m, and the magnitude of A + B = 48, which of the following is true?

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Q: A person walks 33.0° north of east for 2.30 km. How far due north and how far due east would she…

A: In the picture, AB = 2.30 km He has to travel AC along east and BC along north

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Q: =ind (Ả×℃) · (Č×B) given the following vectors: A = 2î + 5ĵ A) 33k B) 51k (C) No Answer D) 51 E 33 B…

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Units and Dimensions

These are generally defined as the terms which precede or describes the dimensions further. These are also further divided into two parts namely fundamental units and the derived units.