COLLEGE PHYSICS
2nd Edition
ISBN: 9781464196393
Author: Freedman
Publisher: MAC HIGHER
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Chapter 1, Problem 53QAP
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• Write the GIVEN with their respective symbols and units.
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Problem:
To find the distance across a river, a surveyor chooses points A
and B, which are 197 ft apart on one side of the river. She then
chooses a reference point C on the opposite side of the river and
finds that A = 47° and B = 70°. Approximate the distance from A
to C.
а. 207 ft.
b. 217 ft.
c. 278 ft.
d. None of the given
A Porsche challenges a Honda to a 200-m race. Because the Porsche's acceleration of
3.5 m/s² is larger than the Honda's 3.0 m/s², the Honda gets a 1.0 s head start.
• The light-year (ly) is a unit of distance commonly used in astronomy. It is defined as the distance traveled by light in a vacuum inone year. (a) Express 1 ly in km. (b) Express the speed of light, c, inunits of ly per year. (c) Express the speed of light in feet per nanosecond
Chapter 1 Solutions
COLLEGE PHYSICS
Ch. 1 - Prob. 1QAPCh. 1 - Prob. 2QAPCh. 1 - Prob. 3QAPCh. 1 - Prob. 4QAPCh. 1 - Prob. 5QAPCh. 1 - Prob. 6QAPCh. 1 - Prob. 7QAPCh. 1 - Prob. 8QAPCh. 1 - Prob. 9QAPCh. 1 - Prob. 10QAP
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- Instructions: • Write the GIVEN with their respective symbols and units. • Do not skip the SOLUTIONS, do it step-by-step with their respective symbols and units Problem: An airplane is flying at an elevation of 5,300 ft, directly above a straight highway. Two motorists are driving cars on the highway on opposite sides of the plane, and the angle of depression to one car is 31° and to the other is 53°. How far apart are the cars? a) 10345 ft. b) 11235 ft c) 12815 ft d) None of the givenarrow_forward• Part A To what potantiai should you charge a t0 F capacior to or 40 J ot enengy Express your answer using two significant figures VE AZ 810 Submit X Incorrect Try Again; 4 atemgte remaining siearrow_forwardHi, please use the numbers that are provided in the problem to solve this for me please. Make sure you use 6.0 x 10^12 as written.arrow_forward
- If you have spent much time driving, you probably have a good sense of speeds between about 10 and 70 miles per hour. But what are these in meters per second? What do we mean when we say that something is moving at 10 m/s? To get a better sense of what these values really mean, do some observations and calculations on your own: • calculate typical car speeds in meters per second • estimate jogging and walking speed by timing yourself; convert the measurements into both m/s and mi/h • determine the speed of an ant, snail, or falling leafarrow_forwardINSTRUCTIONS: • Please write clearly and understandable way. Write all the corresponding Given with their corresponding symbols and units. Draw/Illustrate the diagram/circuit or drawings that is related to the problem, IF POSSIBLE, which is HIGHLY REQUIRED. • Solve in step-by-step, no shortcut. • Underline twice the Final Answer. PROBLEM: A helicopter is rising vertically from the ground at a constant rate of 4.5 meters per second. When it is 75 m off the ground, a car passed beneath the helicopter traveling in a straight line at a constant rate of 80 kph. Determine how fast the distance between them changing after 1 second. a) 07.33 m/s b) 08.13 m/s c) 09.67 m/s d) 10.32 m/sarrow_forward• Compare the different methods for adding vectors. Which of the methods would you use to solve physics problems? • Convert from rectangular to polar format: a. (−3 î+ 4 ĵ)= b. (-4 î-8ĵ)= • Convert from polar to rectangular format: a. (120 Z 0°) b. (120 Z 240°) • Add the following vectors and write the answer in polar format: a. (10 î+ 30 ĵ) + (−4 î − 8 ĵ) b. (520°) + (52 180°) c. (10 45°) d. (120 ≤ 0°) (7.071 î+7.071ĵ) (120 ≤ 240°) • Mention 3 physical variables that are represented by vectors: a. b. C.arrow_forward
- What is the line integral of B between points "i" and "f' in the figure below? A) 0.00 [Tm] 1.0 cm B) 1.26 x 10-6 [Tm] -Integration path C) 2.51 × 10-6 [Tm] D) 4.00 × 10-5 [Tm] i f E) None of above 2.0 A 6.0 cmarrow_forwardProblem 1) Conversions between these various units of length are as follows: On another planet, lengths are measured in units of Kratzers, Arenas, and Jains. • 2.17 Kratzers = 10.04 centi-Arenas • 6.31 Arenas = 1.21 Jains You measure a certain rate of acceleration to be 0.00000472 Jains/sec². Use the given conversion factors (among others) to convert this measured acceleration to Kratzers/hr?.arrow_forward5. A stone is projected vertically upwards from ground level with a speed of 21 ms-¹. Find the height of the stone above ground: (a) 1 second after projection (b) 2 seconds after projection (c) 3 seconds after projection. a) 16.1m, 22.4m, 7.9m c) 16.1m, 22.4m, 18.9m b) 16.1m, 19.2m, 18.9m c) 16.1m, 22.4m, 33.4marrow_forward
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