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- The acceleration due to gravity, g, is constant at sea level on the Earth's surface. However, the acceleration decreases as an object moves away from the Earth's surface due to the increase in distance from the center of the Earth. Derive an expression for the acceleration due to gravity at a distance h above the surface of the Earth, g₁. Express the equation in terms of the radius R of the Earth, g, and h. &h= Suppose a 91.75 kg hiker has ascended to a height of 1802 m above sea level in the process of climbing Mt. Washington. By what percent has the hiker's weight changed from its value at sea level as a result of climbing to this elevation? Use g = 9,807 m/s² and R= 6.371 x 106 m. Enter your answer as a positive value. weight change =The acceleration due to gravity, g, is constant at sea level on the Earth's surface. However, the acceleration decreases as an object moves away from the Earth's surface due to the increase in distance from the center of the Earth. Derive an expression for the acceleration due to gravity at a distance h above the surface of the Earth, gh. Express the equation in terms of the radius R of the Earth, g, and h. &h= Suppose a 74.35 kg hiker has ascended to a height of 1893 m above sea level in the process of climbing Mt. Washington. By what percent has the hiker's weight changed from its value at sea level as a result of climbing to this elevation? Use g = 9.807 m/s² and R = 6.371 × 106 m. Enter your answer as a positive value. weight change = %A wall clock has a second hand 25.0 cm long. A.) what is the radial acceleration of the tip of this hand Express answer in centimeters squared
- An object tied to the end of a string moves in a circle. The force exerted by the string depends on the mass of the object, it's speed and the radius of the circle what combination of these variable gives the correct dimensions (ML/T²) for the force?For related problemsolving tips and strategies, you may want to view a Video Tutor Solution of Using unit vectors. Figure 30.0° B (2.40 m) 0 A (3.60 m) 70.0⁰ 1 of 1 Write the vector A in (Figure 1) in terms of the unit vectors i and 3. Express your answer in terms of the unit vectors i and j. Use the 'unit vector' button to denote unit vectors in your answer. Express the coefficients in meters. Ā= Submit Request Answer Part B B- Submit Part C Write the vector in the figure in terms of the unit vectors i and 3. Express your answer in terms of the unit vectors i and j. Use the 'unit vector' button to denote unit vectors in your answer. Express the coefficients meters. 195| ΑΣΦ 6 IVE ΑΣΦ n ä. Submit Part D Request Answer C Use unit vectors to express the vector C, where C-3.00A-4.00B. Express your answer in terms of the unit vectors i and j. Use the 'unit vector button to denote unit vectors in your answer. Express the coefficients in meters. [ΓΙ ΑΣΦ Request Answer ? → O DING ? m ?…1. For the vectors shown in the figure, find a) A. B b) B.C c) A. C Use either method. Be careful about units and significant figures. Ď (10.0 m) 25.0° Ć (12.0 m) y 53.0⁰ Copyright 2000 Pesmond.cation, Inc, putishing as Pedry B (15.0 m) 30.0° O X A (8.00 m)
- Part (b) Numerically, what is the angle in degrees? θ2 = 70.05 70.05 is incorrect please put the correct answer.The displacement of a vehicle (in meters) is given in Cartesian co-ordinates by: d = -2.4tââ + 4.7tŷ At t = 2.0 seconds, the displacement (in meters) of the vehicle in Polar co-ordinates would be given as d =. mî+ Part A The radial ( r) component would be: ? d = mê Submit Request Answer Part B The angular ( 0) component would be: ? d = Submit Request Answer 國solve algebraic equation. The unknown is a a=(b+c)2/d b=4 c= -8 d=16 d=6
- Part (b) Numerically, what is the angle in degrees? θ2 =A plane takes off from an airport and flies to town A, located d₁ = 260 km from the airport in the direction 20.0° north of east. The plane then flies to town B, located d₂ = 240 km at 30.0° west of nort.... town A. Use graphical methods to determine the distance and direction from town B to the airport. (Enter the distance in km and the direction in degrees south of west.) distance km direction ° south of west Need Help? Submit Answer Read It'mres In the following problem all angles are measured counter-clockwise from the positive x-axis. The vector A has a magnitude of 11.5 and a direction of 251.5 degrees. The vector B has a magnitude of 18 and a direction of 61 degrees. The vector C has a magnitude of 6.5 and a direction of 79 degrees. The vector D follows: D = A + B – C What are the magnitude and direction of D? D= 4.136 Op = 201.91 degrees from the positive x %3D axis.