Physics for Scientists and Engineers
6th Edition
ISBN: 9781429281843
Author: Tipler
Publisher: MAC HIGHER
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Chapter 1, Problem 74P
To determine
To find: The distance between observer and mountain and height of the mountain.
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Please answer the following question(s):
Suppose you first walk 12 m in a direction 20° west of north (A) and then 20 m in a direction 40° south of we
Let the +x-axis coincide with the easterly direction and the +y-axis with the northerly direction.
(a) Draw a diagram of the walk showing the resultant R.
West
-25m
-20m
A: 10 m, 90°
-15m
-10m
R: 10 m, 90°
-5m
25m
20m
15m
10m
5m
Om
-5m
-10m
-15m
-20m
-25m
North
5m
10m
15m
1. Drag and drop the heads and tails of
vectors Leg 1 and Leg 2 to compose
the vector sum
2. Show the vector sum R
South
3. Your magnitudes must be within 2 m
of the correct values, and the angles
must be within ±5°.
B: 10 m, 90°
20m
Eas
25m
A helicopter starts from an airport and takes the route described. The plane first flies to city A, located 175km away in a direction 30.0o north of east. Next, it flies for 150km 20.0o west of north, to city B. Finally, the plane flies 190 km due west, to city C. Find the distance of city C relative to starting point.
(Write your final answer in 3 significant figures, include the unit in your final answer)
I need help on this problem:
You are one block away from a skyscraper that is 780 feet tall. Your friend is between the skyscraper and yourself. The angle of elevation from your position to the top of the skyscraper is 42 degrees. The angle of elevation from your friend's position to the top of the skyscraper is 71 degrees. How far are you from your friend? Express your answer using the correct number of significant figures.
Chapter 1 Solutions
Physics for Scientists and Engineers
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- A surveyor measures the distance across a river that flows straight north by the following method. Starting directly across from a tree on the opposite bank, the surveyor walks 100 m along the river to establish a baseline. She then sights across to the tree and reads that the angle from the baseline to the tree is 35 . How wide is the river?arrow_forwardThree displacement vectors of a croquet ball are shown in Figure P1.44, where |A|=20.0units, |B|=40.0units, and |C|=30.0units. Find (a) the resultant in unit-vector notation and (b) the magnitude and direction of the resultant displacement. Figure P1.44arrow_forwardA surveyor measures the distance across a straight river by the following method: starting directly across from a tree on the opposite bank, he walks x = 1.00 102 m along the riverbank to establish a baseline. Then he sights across to the tree. The angle from his baseline lo the tree is = 35.0 (Fig. P1.53). How wide is the river? Figure P1.53arrow_forward
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