College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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- The force F has a magnitude of 470 N. Express F as a vector in terms of the unit vectors i and j. Identify the x and y scalar components of F. Assume F = 470 N, 0 = 15% j) N Answers: F = i Fx= Fy || 10 F ·x i + i N Z Z Narrow_forwardIn the product F = qv(x) B, take q = 5, v= 2.0i + 4.0j + 6.0k and F = −30.0i −60.0j + 50.0k What then is B in unit-vector notation if Bx =B y?arrow_forwardSome cats can be trained to jump from one location to another and perform other tricks. Kit the cat is going to jump through a hoop. He begins on a wicker cabinet at a height of 1.769 m above the floor and jumps through the center of a vertical hoop, reaching a peak height 3.135 m above the floor. (Assume the center of the hoop is at the peak height of the jump. Assume that +x axis is in the direction of the hoop from the cabinet and +y axis is up. Assume g = 9.81 m/s².) (a) With what initial velocity did Kit leave the cabinet if the hoop is at a horizontal distance of 1.570 m from the cabinet? (Express your answer in vector form. Give your answer to at least two decimal places for each vector component.) Vo m/s (b) If Kit lands on a bed at a horizontal distance of 3.584 m from the cabinet, how high above the ground is the bed? m Need Help? Read Itarrow_forward
- Two vectors are given by 7 8.31 + 3.2) and B = 7.6i + 8.7, vind (o 7 x 7 | 7 7 (a + ). B. and (d) the component of 7 along the direction of ? (a) Number Units (b) Number Units (c) Number Units (d) Numberi Unitsarrow_forward5. A golf ball is hit from a 20m high cliff with a velocity of 22.7m/s at 27.2° above the horizontal. Neglect air friction. Calculate the ball's maximum height above the cliff and the horizontal distance traveled at the time the ball reached its maximum height.arrow_forwardLet vectors: A=(1,0,−3) B=(−2,5,1) and C=(3,1,1). Calculate A×(B×C) Calculate A⋅(B×C) Calculate (2B)×(3C)arrow_forward
- Two constant forces act on a 5.00-kg object moving in the xy-plane, as 42.0 N at 150°. At shown in the figure below. Force F1 is 25.0N at 35.0°, while F2 time t = 0, the object is at the origin and has velocity v; = (4.0 i+2.5 j) m/s. Express all of your answers for this problem with the correct number of significant figures. F2 F1 150° 35.0° (a) Express F1 and F2 in unit-vector (component) notation. (b) press both the net force vector and the acceleration vector in component form and magnitude-angle form. Find the net force on and the acceleration of the object. Ex-arrow_forwardOn planet #3, you fire a projectile horizontally from the edge of a vertical cliff 76.0 m above the ground, with an initial speed of 31.2 m/s. The projectile lands 71.5 m away from the base of the cliff. What is the value of g for planet #3? 848.50 m/s^2 28.94 m/s^2 14.47 m/s^2 12.05 m/s^2arrow_forwardConsider the following vectors: A = 1.2i + 4.9j + 3.7k B = -8.5i + 7.5j + 8.3k Part (a) What is the x-component of the vector V = 3(A × 2B)? Part (b) What is the y-component of the vector V = 3(A × 2B)? Part (c) What is the z-component of the vector V = 3(A × 2B)? Part (d) What is the magnitude of the vector V?arrow_forward
- 3. A satellite is launched from the surface of the earth at the initial speed of 8 km/s. How high will it go before it stops and starts falling back to the earth?arrow_forwardI do not know how to get started with my graph. Does my x axis need to be between 7.84 or 15.68 and my y axis between 0.779 or 1.558. If so how should I start my graph and how much should I go up by with both x and y axis's. Please help! I am confused.arrow_forwardDetermine a unit vector parallel to the resultant vector of 2i + 9j – 9k lb, – 2i – 6j + 8k lb, and - 2i + 6j + 4k lb. i + V X k) lb R = ( -0.206 0.92 j+ | 0.3arrow_forward
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