Physics Fundamentals
2nd Edition
ISBN: 9780971313453
Author: Vincent P. Coletta
Publisher: PHYSICS CURRICULUM+INSTRUCT.INC.
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Chapter 0, Problem 14P
To determine
Whether the given equations are consistent with the units
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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.
The 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 s
A particle has a velocity of 4.7 miles per hour. The velocity, in m/s, is closest to:
1.5
2.3
2.1
1.9
The speed S (m/mii) of an object is defined by
S = 6t² + 2t + 3 after t minutes. For the first one minute,
the object travelled for 10 m. Determine how far the object
travelled for the first two minutes.
O 25
O 40
O 20
O 30
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
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- What is the x component of the vector shown in Figure OQ1.9? (a) 3 cm (b) 6 cm (c) 4cm (d) 6cm (e) none of those answers Figure OQ1.9 Objective Questions 9 and 10.arrow_forwardFind the horizontal and vertical components of the 100-m displacement of a superhero who flies from the top of a tall building following the path shown in Figure P1.40. Figure P1.40arrow_forwardWhat is the x component of the vector shown in Figure OQ3.9? (a) 3 cm (b) 6 cm (c) 4 cm (d) 6 cm (e) none of those answersarrow_forward
- What is the y component of the vector shown in Figure OQ3.9? (a) 3 cm (b) 6 cm (c) 4 cm (d) 6 cm (e) none of those answersarrow_forwardScalars and Vectors A weather forecast states the temperature is predicted to be 5Cthe following day. Is this temperature a vector or a scalar quantity? Explain.arrow_forwardAn 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_forward
- A student witnesses a flash of lightning and then t = 1.5 s later the student hears the associated clap of thunder.Sound travels at 343 m/s in the air. What distance from the student is the lightning strike, in meters? Light travels at 3.0 × 108 m/s in the air. How long, t1, in seconds did it take the light to reach the student's eyes after the lightning strike?arrow_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_forwardComplete the following table and answer the questions given below. height h (cm) Time t, (s) Time t2 (s) Mean time t (s) t? (s²) h/t? (m/s?) g (m/s?) 20 0.2020 0.2024 30 0.2470 0.2476 40 0.2850 0.2858 50 0.3193 0.3183 60 0.3506 0.3502 a) The average value 'g' from the above table is m/s? b) If the exact value of 'g' at that place is 9.825 m/s?, i) the absolute uncertainty in the value of 'g' is m/s2 ii) the percentage uncertainty in the value of 'g' isarrow_forward
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