A spring wound clock makes use of ________ energy to drive the mechanism.
What will be an ideal response?
elastic potential
spring potential
potential
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Conservation of Momentum: Two ice skaters suddenly push off against one another starting from a stationary position. The 45-kg skater acquires a speed of 0.375 m/s relative to the ice. What speed does the 60-kg skater acquire relative to the ice?
A. 0.50 m/s B. 0.28 m/s C. 0.38 m/s D. 0.75 m/s E. 0.00 m/s
A uniform solid disk is released from rest and rolls without slipping down an inclined plane that makes an angle of 25° with the horizontal. What is the forward speed of the disk after it has rolled 3.0 m, measured along the plane?
A) 2.0 m/s B) 3.5 m/s C) 4.1 m/s D) 5.7 m/s E) 6.3 m/s
Two bodies, A and B, collide as shown in Figures I and II below.
Which statement is true?
A. They exert equal and opposite forces on each other in I but not in II. B. They exert equal and opposite force on each other in II but not in I. C. They exert equal and opposite force on each other in both I and II. D. The forces are equal and opposite to each other in I, but only the components of the forces parallel to the velocities are equal in II. E. The forces are equal and opposite in I, but only the components of the forces perpendicular to the velocities are equal in II
Consider the circuit below. Which resistor has the largest power consumption?