Answered: Physics Question

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Physical Sciences/P1 7 CAPS-Grade 10 DBE/November 2016 QUESTION 2 (Start on a new page.) An impatient businessman paces up and down while making a business call on his cellphone. C A B N E S He starts at his desk and walks 5 m east (from A to B) and then walks 7 m west (from B to C). This process takes him 20 s. 2.1 Use a vector scale diagram and represent the two displacements of the man (from A to B AND from B to C). Label ALL the vectors clearly and write down the displacements next to the vectors. Use a scale of 1 cm representing 1 m for your diagram. (2) 2.2 What is the businessman's change in position at C relative to A? 2.3 Calculate the total distance the man covers. 88 (2) (2) 2.4 Explain why the value calculated in QUESTION 2.2 differs from the one calculated in QUESTION 2.3. (2) 2.5 Define the term velocity. (2) 2.6 Calculate the man's average velocity. (4) [14]
I Review I Constants Part A Moe and Joe take a car trip. Moe drives at an average speed of 40 mph for the first hour and then they stop for gas for 10 minutes. After filling gas, Joe drives at an average speed of 35 mph for 40 minutes, and then the traffic clears and he gets to drive at an average speed of 60 mph for half hour. Find the average speed of the car on this trip. Express your answer in mph to two significant figures. MacBook Air 838 7. %23 DD 2. %24 3. & 5. 7. 8. delet H. B. alt option command alt OSISOW command option 00
Please answer 1-5 with a full sentence. Please make sure the answers are clear.
Short computation The position of an object as a function of time is given by x(t) = bt2 - ct, where b = 2.2 m/s² and c = 7.1 m/s. What is the instantaneous velocity v of the object when t = 7.9 s? v= m/s Remember to include a "-" if the velocity turns out to be negative. Do not include a "+" for a positive value. Report your numerical answer below, assuming three significant figures.
Part D What is the distance diast traveled by the plane in the last second before taking off? Express your answer numerically in meters using three significant figures. View Available Hint(s) dlast = VE ΑΣΦ ? m
To take off from the ground, an airplane must reach a sufficiently high speed. The velocity required for the takeoff, the takeoff velocity, depends on several factors, including the weight of the aircraft and the wind velocity. Part B What is the speed VTO of the plane as it takes off? Express your answer numerically in meters per second using three significant figures. View Available Hint(s) UTO= πV—| ΑΣΦ ? m/s
Part A Which, if any, of the vectors shown in the figure are equal? (Figure 1) O Vectors A, G and B are all equal to one another and vector I is the same as vector L. O Vectors A, G and J are all equal to one another and vector I is the same as vector L. O Vectors I, L and É are all equal to one another and vector A is the same as vector G. O Vectors C, G and J are all equal to one another and vector I is the same as vector L. O Vectors I, F and L are all equal to one another and vector A is the same as vector J. Submit Request Answer Provide Feedback Figure 1 of 1> K
Part B How long is the flea in the air from the time it jumps to the time it hits the ground? Express your answer in seconds to three significant figures. ► View Available Hint(s) time in air = %0 ΑΣΦ ? S
(Figure 1)A swimmer wants to cross a river, from point A to point B, as shown in the figure. The distance di (from A to C) is 200 m, the distance d2 (from C to B) is 150 m, and the speed v, of the current in the river is 5 km/hour. Suppose that the swimmer's velocity relative to the water makes an angle of 0 = 45 degrees with the line from A to C, as indicated in the figure.
Please I’m stuck here how can I solve it?
Practice Problems Calculating Displacement (Continued) 2. The diagram below shows the displacements of a golf ball caused by a rookie golfer attempting to reach hole number 7 on Ocean View Golf and Country Club. The golfer requires six shots to put the ball in the hole. The diagram shows the six displacements of the ball. #956x 162 100 m (290 m to hole) 100 m 75m 125 m 75 m 28 m (a) What is the total distance the golf ball travelled while the golfer was playing the seventh hole? (b) What is the resultant displacement of the ball?

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