
Concept explainers
(a)
The potential energy at top and the bottom and the change in potential energy.
(a)

Answer to Problem 17PQ
The potential energy at bottom is
Explanation of Solution
The diagram for the position of the child is given in figure 1.
Figure 1
Write the equation of potential energy at bottom.
Here,
Write the equation of potential energy at top.
Here,
Write the expression for the top height.
Here,
Rewrite the expression from equation (II).
Write the expression for the change in potential energy.
Here,
Conclusion:
Substitute
Thus, The potential energy at bottom is
Substitute
Thus, the potential energy at top is
Substitute
Thus, the change in potential energy is
(b)
The potential energy at top and the bottom and the change in potential energy by choosing the top of the slide as reference frame.
(b)

Answer to Problem 17PQ
The potential energy at top is
Explanation of Solution
Write the equation of potential energy at bottom.
Here,
Write the equation of potential energy at bottom.
Here,
Write the expression for the bottom height.
Here,
Rewrite the expression from equation (I).
Write the expression for the change in potential energy.
Here,
Conclusion:
Substitute,
Thus, The potential energy at top is
Substitute,
Thus, the potential energy at bottom is
Substitute,
Thus, the change in potential energy is
Want to see more full solutions like this?
Chapter 8 Solutions
Webassign Printed Access Card For Katz's Physics For Scientists And Engineers: Foundations And Connections, 1st Edition, Single-term
- RT = 4.7E-30 18V IT = 2.3E-3A+ 12 38Ω ли 56Ω ли r5 27Ω ли r3 28Ω r4 > 75Ω r6 600 0.343V 75.8A Now figure out how much current in going through the r4 resistor. |4 = unit And then use that current to find the voltage drop across the r resistor. V4 = unitarrow_forward7 Find the volume inside the cone z² = x²+y², above the (x, y) plane, and between the spheres x²+y²+z² = 1 and x² + y²+z² = 4. Hint: use spherical polar coordinates.arrow_forwardганм Two long, straight wires are oriented perpendicular to the page, as shown in the figure(Figure 1). The current in one wire is I₁ = 3.0 A, pointing into the page, and the current in the other wire is 12 4.0 A, pointing out of the page. = Find the magnitude and direction of the net magnetic field at point P. Express your answer using two significant figures. VO ΜΕ ΑΣΦ ? Figure P 5.0 cm 5.0 cm ₁ = 3.0 A 12 = 4.0 A B: μΤ You have already submitted this answer. Enter a new answer. No credit lost. Try again. Submit Previous Answers Request Answer 1 of 1 Part B X Express your answer using two significant figures. ΜΕ ΑΣΦ 0 = 0 ? below the dashed line to the right P You have already submitted this answer. Enter a new answer. No credit lost. Try again.arrow_forward
- University Physics Volume 1PhysicsISBN:9781938168277Author:William Moebs, Samuel J. Ling, Jeff SannyPublisher:OpenStax - Rice UniversityPhysics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage LearningCollege PhysicsPhysicsISBN:9781285737027Author:Raymond A. Serway, Chris VuillePublisher:Cengage Learning
- College PhysicsPhysicsISBN:9781938168000Author:Paul Peter Urone, Roger HinrichsPublisher:OpenStax CollegeCollege PhysicsPhysicsISBN:9781305952300Author:Raymond A. Serway, Chris VuillePublisher:Cengage Learning





