1. Katie, a 30.0 kg child, climbs a tree to rescue her cat who is afraid to jump 8.0 m to the ground. How much work does Katie do in order to reach the cat? *Use g=9.8 a. 1, 720 J b. 2, 400 J c. 1, 340 J d. 240 J e. 580 J
1. Katie, a 30.0 kg child, climbs a tree to rescue her cat who is afraid to jump 8.0 m to the ground. How much work does Katie do in order to reach the cat? *Use g=9.8 a. 1, 720 J b. 2, 400 J c. 1, 340 J d. 240 J e. 580 J
College Physics
1st Edition
ISBN:9781938168000
Author:Paul Peter Urone, Roger Hinrichs
Publisher:Paul Peter Urone, Roger Hinrichs
Chapter7: Work, Energy, And Energy Resources
Section: Chapter Questions
Problem 60PE: Integrated Concepts (a) Calculate the force the woman in Figure 7.46 exerts to do a push-up at...
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1. Katie, a 30.0 kg child, climbs a tree to rescue her cat who is afraid to jump 8.0 m to the ground. How much work does Katie do in order to reach the cat? *Use g=9.8
a. 1, 720 J
b. 2, 400 J
c. 1, 340 J
d. 240 J
e. 580 J
2. A sock stuck to the inside of the clothes dryer spins around the drum once every 2.0 s at a distance of 0.50 m from the center of the drum. What is the sock’s linear speed? *
Use g=9.8
a. 1.6 m/s
b. 1.0 m/s
c. 3.1 m/s
d. 4.0 m/s
e. 2.7 m/s
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