Inquiry into Physics
8th Edition
ISBN: 9781337515863
Author: Ostdiek
Publisher: Cengage
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Chapter 1, Problem 7C
To determine
The relation between the speed and the distance travelled by eliminating the variable of time.
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Sketch the resulting complex wave form, and then say whether it is a periodic or aperiodic wave.
During a concentric loading of the quadriceps muscle in the upper leg, an athlete extends his lower leg from a vertical position (see figure (a)) to a fully extended horizontal position (see figure (b)) at a constant angular speed of 45.0° per second. Two of the four quadriceps muscles, the
vastis intermedius and the rectus femoris, terminate at the patellar tendon which is attached to the top of the tibia in the lower leg. The distance from the point of attachment of the patellar tendon to the rotation axis of the tibia relative to the femur is 4.10 cm in this athlete.
a
b
(a) The two quadriceps muscles can exert a maximum force of 225 N through the patellar tendon. This force is applied at an angle of 25.0° to the section of the tibia between the attachment point and the rotation axis. What is the torque (in N⚫ m) exerted by the muscle on the lower leg
during this motion? (Enter the magnitude.)
N⚫ m
(b) What is the power (in W) generated by the athlete during the motion?
W
(c)…
Chapter 1 Solutions
Inquiry into Physics
Ch. 1 - The original “clock” used to define the length of...Ch. 1 - What is a leap second, and why w it introduced...Ch. 1 - To what extent was Aristotle’s model of falling...Ch. 1 - Describe two major discoveries or contributions...Ch. 1 - Consider Concept Map 1,1, which provides an...Ch. 1 - Prob. 2MIOCh. 1 - (Indicates a review question, which means it...Ch. 1 - (Indicates a review question, which means it...Ch. 1 - (Indicates a review question, which means it...Ch. 1 - (Indicates a review question, which means it...
Ch. 1 - (Indicates a review question, which means it...Ch. 1 - (Indicates a review question, which means it...Ch. 1 - (Indicates a review question, which means it...Ch. 1 - (Indicates a review question, which means it...Ch. 1 - (Indicates a review question, which means it...Ch. 1 - (Indicates a review question, which means it...Ch. 1 - Prob. 11QCh. 1 - (Indicates a review question, which means it...Ch. 1 - (Indicates a review question, which means it...Ch. 1 - (Indicates a review question, which means it...Ch. 1 - Prob. 15QCh. 1 - (Indicates a review question, which means it...Ch. 1 - Prob. 17QCh. 1 - (Indicates a review question, which means it...Ch. 1 - (Indicates a review question, which means it...Ch. 1 - (Indicates a review question, which means it...Ch. 1 - (Indicates a review question, which means it...Ch. 1 - (Indicates a review question, which means it...Ch. 1 - (Indicates a review question, which means it...Ch. 1 - Prob. 24QCh. 1 - Prob. 25QCh. 1 - Prob. 26QCh. 1 - Prob. 27QCh. 1 - A yacht is 20 m long. Express this length in feet.Ch. 1 - Prob. 2PCh. 1 - A convenient time unit for short time intervals is...Ch. 1 - One mile is equal to 1,609 m. Express this...Ch. 1 - A hypnotist, watch hanging from a chain swings...Ch. 1 - The quartz crystal used in an electric watch...Ch. 1 - A passenger jet flies from one airport to another...Ch. 1 - At the 2006 Winter Olympics in Torino, Italy, U.S....Ch. 1 - A runner in a marathon passes the 5-mile mark at 1...Ch. 1 - . The Moon is about 3.8 ×108 m from Earth....Ch. 1 - . In Figure 1.13, assume that m/s and m/s. Use a...Ch. 1 - . On a day when the wind is blowing toward the...Ch. 1 - . How far does a car going 25 m/s travel in 5 s?...Ch. 1 - . A long-distance runner has an average speed of 4...Ch. 1 - . Draw an accurate graph showing distance versus...Ch. 1 - The graph in Figure 1.38 shows the distance versus...Ch. 1 - . A high-performance sports car can go from 0 to...Ch. 1 - . As a baseball is being thrown it goes from 0 to...Ch. 1 - . A child attaches a rubber ball to string and...Ch. 1 - . A child sits on the edge of spinning...Ch. 1 - . A runner is going 10 m/s around a curved section...Ch. 1 - During a NASCAR race, a car goes 50 m/s around a...Ch. 1 - . A rocket accelerates from rest at a rate of 64...Ch. 1 - . Initially staionary, a train has a constant...Ch. 1 - . (a) Draw an accurate graph of the speed versus...Ch. 1 - . Draw an accurate graph of the velocity versus...Ch. 1 - . A skydiver jumps out of a helicopter and falls...Ch. 1 - . A rock is dropped off the side of a bridge and...Ch. 1 - . The roller coaster in Figure 1.39 starts at the...Ch. 1 - . During takeoff, an airplane goes from 0 to 50...Ch. 1 - Prob. 31PCh. 1 - . A bungee jumper falls for 1.3 s before the...Ch. 1 - . A drag-racing car goes from 0 to 300 mph in 5 s....Ch. 1 - Prob. 1CCh. 1 - The Moon's mass is 7.35 1022 kg, and it moves in a...Ch. 1 - A car is stopped at a red light. When the light...Ch. 1 - A spoils car is advertised to have a maximum...Ch. 1 - A spacecraft lands on a newly discovered planet...Ch. 1 - Prob. 6CCh. 1 - Prob. 7CCh. 1 - A race car starts from rest on a circular track...Ch. 1 - Prob. 9C
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