Physics Fundamentals
2nd Edition
ISBN: 9780971313453
Author: Vincent P. Coletta
Publisher: PHYSICS CURRICULUM+INSTRUCT.INC.
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Chapter 0, Problem 13P
To determine
Whether the given equations are consistent with the units
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In addition to 1 m = 39.37 in., the following exact conversion equivalents are given: 1 mile = 5280 ft, 1 ft = 12 in, 1 hour= 60 min and 1 min = 60 s If a narticle has a
velocity of 8.4 miles per hour, its velocity, in m/s, is closest to
O 3.4 m/s
O 3.0 m/s
O 4.1 m/s.
O 4.5 m/s
O 3.8 m/s.
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An automobile traveling 95 km/hkm/h overtakes a 1.40 kmkm -long train traveling in the same direction on a track parallel to the road.
A) If the train's speed is 75 km/hkm/h, how long does it take the car to pass it in minutes? Express your answer to two significant figures and include the appropriate units.
B) How far will the car have traveled in this time? Express your answer to two significant figures and include the appropriate units.
C) How long does it take the car to pass the train if the car and train are traveling in opposite directions in minutes? Express your answer to two significant figures and include the appropriate units.
D) How far will the car have traveled in this time? Express your answer to two significant figures and include the appropriate units.
Given the quantities a = 1.4 m, b = 7.5 s, c = 86 m/s, what is the value of the quantity d =
cb²
Number i
Units
?
Chapter 0 Solutions
Physics Fundamentals
Ch. 0 - Prob. 1PCh. 0 - Prob. 2PCh. 0 - Prob. 3PCh. 0 - Prob. 4PCh. 0 - Prob. 5PCh. 0 - Prob. 6PCh. 0 - Prob. 7PCh. 0 - Prob. 8PCh. 0 - Prob. 9PCh. 0 - Prob. 10P
Ch. 0 - Prob. 11PCh. 0 - Prob. 12PCh. 0 - Prob. 13PCh. 0 - Prob. 14PCh. 0 - Prob. 15PCh. 0 - Prob. 16PCh. 0 - Prob. 17PCh. 0 - Prob. 18PCh. 0 - Prob. 19PCh. 0 - Prob. 20PCh. 0 - Prob. 21PCh. 0 - Prob. 22PCh. 0 - Prob. 23PCh. 0 - Prob. 24PCh. 0 - Prob. 25PCh. 0 - Prob. 26PCh. 0 - Prob. 27PCh. 0 - Prob. 28PCh. 0 - Prob. 29PCh. 0 - Prob. 30PCh. 0 - Prob. 31PCh. 0 - Prob. 32PCh. 0 - Prob. 33PCh. 0 - Prob. 34P
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- A person going for a walk follows the path shown in Figure P1.51. The total trip consists of four straight-line paths. At the end of the walk, what is the persons resultant displacement measured from the starting point? Figure P1.51arrow_forwardCalculate the result for each of the following cases using the correct number of significant figures. a. 3.07670 10.988 b. 1.0093 105 9.98 104 c. 5.44231064.008103arrow_forwardThe distance between two cities is 100 mi. What is the number of kilometers between the two cities? (a) smaller than 100 (b) larger than 100 (c) equal to 100arrow_forward
- Three 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_forwardIn SI units, speeds are measured in meters per second (m/s). But, depending on where you live, you’re probably mole comfortable of thinking of speeds in terms of either kilometers per hour (km/h) or miles per hour (mi/h). In this problem, you will see that 1 m/s is roughly 4 km/h or 2 mi/h, which is handy to use when developing your physical Intuition. More precisely, show that (a) 1.0m/s=3.6km/h and 1.0m/s=2.2mi/h .arrow_forwardThe following conversion equivalents are given:1 mile = 5280 ft 1 ft = 12 in 1 m = 39.37 in 1 hour = 60 min 1 min = 60 sA particle has a velocity of 4.7 miles per hour. The velocity, in m/s, is closest to:A) 2.1 B) 1.7 C) 1.9 D) 2.3 E) 2.5arrow_forward
- A stone is tossed into the air from ground level with an initial velocity of 30 m/s. Its height at time t is h(t) : 30t – 4.9t2 m. Compute the stone's average velocity ū in m/s over the time intervals [2, 2.01], [2,2.001], [2,2.0001] and [1.9999, 2], [1.999, 2], [1.99, 2]. (Use decimal notation. Give your answers to three decimal places.) Ū12,2.01] = m/s Ü12,2.001] = m/s U12,2.0001] = m/sarrow_forwardA car is traveling down a highway at a constant speed, described by the equation d=60t, where d represents the distance, in miles, that the car travels at this speed in t hours. What is the constant of proportionality?arrow_forwardWhat is the speed of a car going v=1.000 mph in SI units? Notice that you will need to change miles to meters and from hours to seconds. you can do each conversion separately. Use the facts that 1 mile=1609 m and 1 hour= 3600sarrow_forward
- An ant travels 3.95 inches due east, then turns and travels an additional 3.35 inches south. The ant walked east for 2.25 minutes and south for 3.15 minutes. a) What is the ant's average speed over the entire trip in the given units? O 1.35 inches/minute O 1.76 inches/minute O1.06 inches/minute O 2.32 inches/minute O 3.24 inches/minute b) What is the ant's average speed over the entire trip in Sl units? 3,190 m/s 2.06 m/s O 0.000572 m/sarrow_forwardWhat SI unit is the most appropriate to use for the problem given below? A coin is dropped from the top of the Burj Khalifa. The coin hits the sandy grounds of Dubai after a full minute and a half. How tall is the Burj Khalifa? Kilometers No answer O Meters O Minutes O Secondsarrow_forwardYou want to convert the speed km/h into m/s for a physics problem. Which of the following could act as the correct conversion factor? (units not shown) O 1000/3600 O 1000 O 3600/1000 O (1/3600)arrow_forward
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