15. Planet P has the same radius as Earth but three times the mass of Earth . 4. If the gravitational force exerted by the planet Neptune on a 82.0-kg Use the following information to answer the next question Two people. A and B, are dragging a canoe across a level beach usin astronaut is 907.1 N, what is the mass of Neptune? (Neptune = 2.48 x 107 An object with an initial velocity of 5.0 m/s [E] speeds up for 10.0 s until its light ropes. Person A applesid converted by the beach on the canoe is The ratio of the force of gravity on the surface of planet P to the force of final velocity is 30.0 m/s [E] as represented in this graph. 100 N. Which of the follow Which of the following is the correct free-body diagram for the gravity on the surface of planet Earth is canoe, drawn to scale? 1.65 x 101/ kg Velocly.Time Graph 1:9 ard + forward 4.11 x 1018 kg O3:1 8.36 x 1027 kg 09:1 1.02 x 1026 kg 0 1:3 20 N 12. A cement block of mass 20 kg is at rest on an inclined plane that makes Wave Phase Points an angle q = 30" with the horizontal. What is the force of static friction acting on the block? The displacement of the object from 2.0 s to 6.0 s is g = 9.81 m/s? [down] Q4.5 x 101 m [E] FB 8.0 x 10' m [E] 1.2 x 102 m [E] 20 N 6.0 x 101 m (E] 36. Refer to the diagram Wave Phase Points to answer this question. Listed below are four pairs of points from the wave train diagram. Which . Person A and person B are pulling on an object unearthed at of the pairs of points are in phase ? 98 N [uphill] using ropes at an angle of 30' from the eachedlogicaly eme person bulls with a force of A and J 98 N [downhill] friction on the stone is 100 N. What is the net force on the stone? 11. G and N Ill. E and N 10 N [uphill] 20 N IV. C and L 1.7 x 102 N [uphill] Oil, Ill, and IV 40. The TGV (the high-speed train in France) is approaching you at a speed of 348 km/h while it is sounding its 285-Hz horn. As the train passes you, - F O1, Ill, and IV there is a noticeable lowering of the frequency the change in frequency FB Ol. II and Ill you hear from the time the train is approaching you to is moving away from you? 30 N [backward] O O1. 11, and IV 21 N [forward] 20 N 156 Hz + forward 32. A 9.25-kg mass, attached to a spring that has a spring constant of 5.75 x 39 N [backward] FA ition 12.5 cm [E] of its resting position. What will be the 178 H acceleration of the mass when it is released? O2.2 x 102 N [forward] 4.23 m/s? [w] 189 H . Which of the following phen mena can be explained using the principle 167 Hz of superposition? 4.23 m/s? [S] An 80.0-kg athlete is shown 7.77 m/s? [S] Use the following information to answer the next question standing wave patterns A Standing Wave Pattern in a Spring wave interference an elevator in a fitness centre on (7.77 m/s? [w] Earth, where the magnitude of the III. universal wave equation 9.81 N/kg. The reading on the bathroom scale is 785 oh 27. A echoes . A constant force of 75.0 N [W] is applied to a 3.20 kg mass over a displacement of 9.50 m [W]. If the force acts for a period of 4.20 s, what correct for the motion of the power is required? Oil and IV 148 W question. 38. Refer to the diagram A Standing Wave Pattern in a Spring to answer th Oil and II The elevator may be at rest. The speed of the wave in the spring is 4.68 m/s. If the frequency of the The elevator may be moving up or down at constant speed. 97.5 W standing wave is 1.48 Hz, the length of the spring is OI and !I The elevator may be accelerating up or down at 9.81 m/s2. 170 W 07.91 m OI and Ill OilI only 165 W 4.74 m 33. A simple harmonic oscillator consists of a 25.8-kg mass on a horizontal frictionless surface. The oscillations, which reach a maximum speed of I only 05.28 m 2.25 m/s, have an amplitude of 52.0 cm. What is the spring constant of the spring that is driving the oscillator?" OI and II only 35. When a longitudinal 6.32 m Oil only moves back and forth across the motion of the wave as it travels in 04.83 x 102 N/m direction of wave motion. 21. A planet is observed to have a moon that orbits with a period of 2.76 x O' s. If Kepler's constant for this planet is 9.20 x 10-13 s?/m', what is the 05.17 x 102 N/m it ge o'm acrossthe horizontal apex the horizontal on a sted and moves moves back and forth parallel to the direction of wave motion but the sled is 2.80 x 104 J. what is the magnitude of the force? generally stays in the same place. 3.79 x 102 N/m moves back and forth parallel to the direction of the wave 1.07 x 103 m/s 06.09 * 10: N it travels in the direction of the wave motion. 3.29 x 103 m/s 6.22 x 102 N/m 2:87 * 102 N moves back and forth across the direct on of wave motion but generally stays in the same place. 2.14 x 103 m/s 8. A 15.0 g solution in a test tube is placed in a centrifuge that spins at a 3.24 x 102 N rate of 2.5 x 102 Hz. What is the centripetal for 20. A planet orbits a sun at a speed of 1.20 * 10 m/s. If the radius of this 1.15 x 103 m/s if the radius of the circular motion is 12.0 cm? 5.37 * 102 N planet's orbit is 2.87 x 1012 m, what must be the mass of the sun about which the planet is in orbit? O23.6 N 25. If a spring has an elastic constant of 4.50 x 10* N/m, what is the energ stored in this spring when it is compressed from its equilibrium position by a force of 1.50 x 103 N ? 2.96 x 105 N 1.03 x 1026 kg 30.0 J 05.33 x 102 N 5.16 x 1026 kg 5.16 x 1025 kg 50.0 J 4.44 x 103 N 6.20 x 1020 kg 0 125 J O25.0 J