Problem 1CA: The original “clock” used to define the length of the second was the daily rotation of Earth about... Problem 2CA: What is a leap second, and why w it introduced into timekeeping practices by scientists in the 1... Problem 1PIP: To what extent was Aristotle’s model of falling bodies correct? How was it wrong? Problem 2PIP: Describe two major discoveries or contributions that Galileo made to science and the study of... Problem 1MIO: Consider Concept Map 1,1, which provides an overview of motion. Review Sections 1,2 and 1,3 and make... Problem 2MIO Problem 1Q: (Indicates a review question, which means it requires only a basic understanding of the material to... Problem 2Q: (Indicates a review question, which means it requires only a basic understanding of the material to... Problem 3Q: (Indicates a review question, which means it requires only a basic understanding of the material to... Problem 4Q: (Indicates a review question, which means it requires only a basic understanding of the material to... Problem 5Q: (Indicates a review question, which means it requires only a basic understanding of the material to... Problem 6Q: (Indicates a review question, which means it requires only a basic understanding of the material to... Problem 7Q: (Indicates a review question, which means it requires only a basic understanding of the material to... Problem 8Q: (Indicates a review question, which means it requires only a basic understanding of the material to... Problem 9Q: (Indicates a review question, which means it requires only a basic understanding of the material to... Problem 10Q: (Indicates a review question, which means it requires only a basic understanding of the material to... Problem 11Q Problem 12Q: (Indicates a review question, which means it requires only a basic understanding of the material to... Problem 13Q: (Indicates a review question, which means it requires only a basic understanding of the material to... Problem 14Q: (Indicates a review question, which means it requires only a basic understanding of the material to... Problem 15Q Problem 16Q: (Indicates a review question, which means it requires only a basic understanding of the material to... Problem 17Q Problem 18Q: (Indicates a review question, which means it requires only a basic understanding of the material to... Problem 19Q: (Indicates a review question, which means it requires only a basic understanding of the material to... Problem 20Q: (Indicates a review question, which means it requires only a basic understanding of the material to... Problem 21Q: (Indicates a review question, which means it requires only a basic understanding of the material to... Problem 22Q: (Indicates a review question, which means it requires only a basic understanding of the material to... Problem 23Q: (Indicates a review question, which means it requires only a basic understanding of the material to... Problem 24Q Problem 25Q Problem 26Q Problem 27Q Problem 1P: A yacht is 20 m long. Express this length in feet. Problem 2P Problem 3P: A convenient time unit for short time intervals is the millisecond. Express 0.0452 s in... Problem 4P: One mile is equal to 1,609 m. Express this distance in kilometers and in centimeters. Problem 5P: A hypnotist, watch hanging from a chain swings back and forth every 0.8’s. What is the frequency of... Problem 6P: The quartz crystal used in an electric watch vibrates with a frequency of 32.768 Hz. What is the... Problem 7P: A passenger jet flies from one airport to another 1,200 miles away in 2.5 h. Find its average speed. Problem 8P: At the 2006 Winter Olympics in Torino, Italy, U.S. speed skater Apolo Ohno took the gold medal for... Problem 9P: A runner in a marathon passes the 5-mile mark at 1 o’clock and the 20-mile mark at 3 o clock. What... Problem 10P: . The Moon is about 3.8 ×108 m from Earth. Traveling at the speed of light, 3.0 × 108 m/s, how long... Problem 11P: . In Figure 1.13, assume that m/s and m/s. Use a rular to the resultant velocities in (c) and (d). Problem 12P: . On a day when the wind is blowing toward the south at 3 m/s, a runner jogs west at 4 in/s. What is... Problem 13P: . How far does a car going 25 m/s travel in 5 s? How far would a jet going 250 m/s travel in 5 s? Problem 14P: . A long-distance runner has an average speed of 4 m/s during a race. How far does the runner travel... Problem 15P: . Draw an accurate graph showing distance versus time for the car in Problem 13. What is the slope... Problem 16P: The graph in Figure 1.38 shows the distance versus time for an elevator as it moves up and down in a... Problem 17P: . A high-performance sports car can go from 0 to 100 mph (44.7 m/s) in 7.9 s. (a) What is the car's... Problem 18P: . As a baseball is being thrown it goes from 0 to 40 m/s in 0.15 s. (a) What is the acceleration of... Problem 19P: . A child attaches a rubber ball to string and whirls it around in a circle overhead. It the string... Problem 20P: . A child sits on the edge of spinning merry-go-round that has a radius of 1.5 in. The child’s speed... Problem 21P: . A runner is going 10 m/s around a curved section of track that has a radius of 35 m. What is the... Problem 22P: During a NASCAR race, a car goes 50 m/s around a curved section of track that has a radius of 250 m.... Problem 23P: . A rocket accelerates from rest at a rate of 64 m/s2. (a) What is its speed after it accelerates... Problem 24P: . Initially staionary, a train has a constant acceleration of 0.5 m/s2. (a) What is its speed after... Problem 25P: . (a) Draw an accurate graph of the speed versus time for the train Problem 24. (b) Draw an accurate... Problem 26P: . Draw an accurate graph of the velocity versus time for the elevator in Problem 16. Problem 27P: . A skydiver jumps out of a helicopter and falls freely for 3 s before opening the parachute. (a)... Problem 28P: . A rock is dropped off the side of a bridge and hits the water below 2 s later. (a) What was the... Problem 29P: . The roller coaster in Figure 1.39 starts at the top of a straight track that is inclined 30° with... Problem 30P: . During takeoff, an airplane goes from 0 to 50 m/s in 8 s. (a) What is its acceleration? (b) How... Problem 31P Problem 32P: . A bungee jumper falls for 1.3 s before the bungee cord begins to stretch. Until the jumper has... Problem 33P: . A drag-racing car goes from 0 to 300 mph in 5 s. What is its average acceleration in g’s? Problem 1C Problem 2C: The Moon's mass is 7.35 1022 kg, and it moves in a nearly circular orbit with radius 3.84 108 m. The... Problem 3C: A car is stopped at a red light. When the light turns green, the car begins to accelerate with a... Problem 4C: A spoils car is advertised to have a maximum cornering acceleration of 0.85 g. (a) What is the... Problem 5C: A spacecraft lands on a newly discovered planet orbiting the star 51 Pegasi. To measure the... Problem 6C Problem 7C Problem 8C: A race car starts from rest on a circular track with radius 100 m and begins to increase its speed... Problem 9C format_list_bulleted
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