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Chapter 1 Solutions
College Physics
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Lecture- Tutorials for Introductory Astronomy
- Calculate 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 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 1.9arrow_forwardWhat is the value of g at an altitude of 12,000 km above Earth's surface? Consider: rEarth = 6.38 x 106 m MEarth = 5.98 x 1024 kg Give your answer in m/s/s to the correct number of significant figures.arrow_forward
- You are driving home from school steadily at 97 km/hkm/h for 160 kmkm . It then begins to rain and you slow to 61 km/hkm/h instantly. You arrive home after driving 4.5 hours. How far is your hometown from school? answer using two significant figures. What was your average speed? answer using two significant figures.arrow_forwardWhen I did p 2.37 I got zero but that is not the correct answer. I need help.arrow_forwardThe acceleration of an object (in m/s2) is given by the function a(t)=8sin(t)a(t)=8sin(t). The initial velocity of the object is v(0)=−10v(0)=-10 m/s. Round your answers to four decimal places.a) Find an equation v(t) for the object velocity.v(t)v(t) = −8cos(t)−2Correct b) Find the object's displacement (in meters) from time 0 to time 3.3.4187Incorrect metersc) Find the total distance traveled by the object from time 0 to time 3. metersarrow_forward
- To burn the fats she accumulated during the lockdown, Katie walks south at a speed of 2.00 m/s for 60.0 minutes. She then turns around and walks north a distance 3000 m in 25.0 minutes. What is her total distance covered?arrow_forwardYour car gets 34.7 mi/gal on a trip. How many km/L did it get? (3.79 L = 1 gal; 1 mi = 1.61 km) L stands for liters. 9.16 km/L 32.4 km/L 55.9 km/L 14.7 km/L O O Oarrow_forwardThe velocity-time graph that describes the velocity of an object with time is given as in the figure below. if the values of a= 98.5, b=124.6 and c=57, Find the displacement made by the object in the first hour. v(km/h) b. a t(h) 0.5 1.0 1.5 2.0 Select one: A. 118.1 OB. 175.1 OC 398.4 OD. 139.6 OE 142.7 choicearrow_forward
- To visit your friend, you first drive on a highway at 55 mi/h for 1.6 hours and then drive on a local road at 20 mi/h for 0.7 hours. What is the average velocity of your trip in mi/h to your friend's home? Your Answer: Answerarrow_forwardBecmid-B71423 ACADENIC) 00 Answer 370.98292 N Flag astion estion velocity (m/sec) vs time (sec) ed out of 8. 13 16 5 55 65 -13 The diagram above shows the velocity(m/s) versus time(s) graph of a man driving a car along a straight line from home to his work. What total distance did he travel in the first 8 seconds? Answer: the canarrow_forwardA tortoise and a hare are competing in a 1200-meter race. The arrogant hare decides to let the tortoise have a 820-meter head start. When the start gun is fired the hare begins running at a constant speed of 8 meters per second and the tortoise begins crawling at a constant speed of 4.5 meters per second. Which of the following formulas expresses the distance between the tortoise and the hare in meters, d, in terms of the number of seconds, t, since the start gun was fired? Od = 820 - 8t Od = 820 + 3.5t Od = 820 - 3.5t Od = 1200 3.5t Od = 1200 - (8t + 4.5t)arrow_forward
- Physics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage Learning