Review for Physics 11 Diag
VECTORS AND SCALARS
7/22/2017
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1. Cross product Consider the following vectors: F= i-2j-3k H= 3k Solve the value of the cross product F x H
A. - 3 i – 6 j B. - 3 i + 6 j C. - 6 i – 3 j D. - 6 i + 3 j E. 0 7/22/2017
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1. Cross product Consider the following vectors: F= i-2j-3k H= 3k Solve the value of the cross product F x H
A. - 3 i – 6 j B. - 3 i + 6 j C. - 6 i – 3 j D. - 6 i + 3 j E. 0 7/22/2017
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2. Vector addition Consider the following vectors: A = 50.0 km, 1200 counterclockwise from East Bx = -4.0 km, By = -10.0 km C = 42.4 km, 45.00 East of South Determine the x component of the resultant sum of the three vectors.
A. B. C. D. E. 7/22/2017
1.0 i -12.3 i 12.3 i -37.7 i 37.7 i 5
2. Vector addition Consider the following vectors: A = 50.0 km, 1200 counterclockwise from East Bx = -4.0 km, By = -10.0 km C = 42.4 km, 45.00 East of South Determine the x component of the resultant sum of the three vectors.
A. B. C. D. E. 7/22/2017
1.0 i -12.3 i 12.3 i -37.7 i 37.7 i 6
3. Quadrant Let vector P point from the origin into the 2nd quadrant of the xy plane and vector S point from the origin to the 4th quadrant. The vector P – S must be in which quadrant?
A. Quadrant I B. Quadrant II C. Quadrant III D. Quadrant IV E. Quadrant I or III 7/22/2017
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3. Quadrant Let vector P point from the origin into the 2nd quadrant of the xy plane and vector S point from the origin to the 4th quadrant. The vector P – S must be in which quadrant?
A. Quadrant I B. Quadrant II C. Quadrant III D. Quadrant IV E. Quadrant I or III 7/22/2017
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4. Vector sum What is the minimum number of vectors with unequal magnitudes will yield a vector sum of zero? A. B. C. D. E.
7/22/2017
6 5 4 3 2
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4. Vector sum What is the minimum number of vectors with unequal magnitudes will yield a vector sum of zero? A. B. C. D. E.
7/22/2017
6 5 4 3 2
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5. Component method Consider vector: C = 34.6 km, 30.00 East of South Rewrite vector C in unit vector notation.
A. B. C. D. E. 7/22/2017
C= C= C= C= C=
30.0 km i - 30.0 km j 30.0 km i + 30.0 km j -30.0 km i + 30.0 km j 17.3 km i – 30.0 km j 30.0 km i – 17.3 km j 11
5. Component method Consider vector: C = 34.6 km, 30.00 East of South Rewrite vector C in unit vector notation.
A. B. C. D. E. 7/22/2017
C= C= C= C= C=
30.0 km i - 30.0 km j 30.0 km i + 30.0 km j -30.0 km i + 30.0 km j 17.3 km i – 30.0 km j 30.0 km i – 17.3 km j 12
6. Components A displacement vector is 40 km in length and directed 30° north of west. What are the components of this vector?
A. B. C. D. E. 7/22/2017
X -20 km -35 km -35 km -5.0 km -20 km
Y 20 km 5.0 km 20 km 35 km 35 km 13
6. Components A displacement vector is 40 km in length and directed 30° north of west. What are the components of this vector?
A. B. C. D. E. 7/22/2017
X -20 km -35 km -35 km -5.0 km -20 km
Y 20 km 5.0 km 20 km 35 km 35 km 14
7. Scalar product What is the angle between the vectors A and B if A.B = 0? A. B. C. D. E. 7/22/2017
00 450 900 1800 3600 15
7. Scalar product What is the angle between the vectors A and B if A.B = 0? A. B. C. D. E. 7/22/2017
00 450 900 1800 3600 16
8. Vector-product Two vectors F and G have equal magnitudes. Their cross product has a zero magnitude if F and G are ______. A. Parallel B. Equal C. Anti-Parallel D. Perpendicular E. A or C 7/22/2017
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8. Vector-product Two vectors F and G have equal magnitudes. Their cross product has a zero magnitude if F and G are ______. A. Parallel B. Equal C. Anti-Parallel D. Perpendicular E. A or C 7/22/2017
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9. DOT Product Consider the following vectors: F= i-2j-3k H= i+2j-k Solve the value of the dot product F . H
A. 0 B. - 4 C. 4 D. 12 i E. -6 j + 4 k 7/22/2017
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9. DOT Product Consider the following vectors: F= i-2j-3k H= i+2j-k Solve the value of the dot product F . H
A. 0 B. - 4 C. 4 D. 12 i E. -6 j + 4 k 7/22/2017
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10. Equlibrant A lady biker starts her adventure by first walking 20.0 km, 300 South of East from her car. He stops and sets up his tent for the night. On the second day, she walks 10.0 km northward, at which she discovers a forest ranger’s tower. Find an expression for the resultant displacement vector in terms of unit vectors.
A. +10.0 i B. - 10.0 i C. + 17.3 i D. - 17.3 i E. + 17.3 j 7/22/2017
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10. Equilibrant A lady biker starts her adventure by first walking 20.0 km, 300 South of East from her car. He stops and sets up his tent for the night. On the second day, she walks 10.0 km northward, at which she discovers a forest ranger’s tower. Find an expression for the resultant displacement vector in terms of unit vectors.
A. +10.0 i B. - 10.0 i C. + 17.3 i D. - 17.3 i E. + 17.3 j 7/22/2017
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KINEMATICS
7/22/2017
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11. Instantaneous velocity Consider a particle that moves along the x-axis. Its position varies with time according to the expression, x(t) = (4.0 m/s) t + (3.0 m/s2) t2 , where x is in meters and t is in seconds. What is the instantaneous velocity of the particle at t = 2 s?
A. 2.0 m/s B. 4.0 m/s C. 8.0 m/s D. 12 m/s E. 16 m/s 7/22/2017
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11. Instantaneous velocity Consider a particle that moves along the x-axis. Its position varies with time according to the expression, x(t) = (4.0 m/s) t + (3.0 m/s2) t2 , where x is in meters and t is in seconds. What is the instantaneous velocity of the particle at t = 2 s?
A. 2.0 m/s B. 4.0 m/s C. 8.0 m/s D. 12 m/s E. 16 m/s 7/22/2017
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12. Maximum height Consider a long jumper that leaves the ground at an angle of 20.00 above the horizontal at a speed of 8.4 m/s. What is the maximum height reached?
A. 0.221 m B. 0.321 m C. 0.421 m D. 0.721 m E. 0.821 m 7/22/2017
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12. Maximum height Consider a long jumper that leaves the ground at an angle of 20.00 above the horizontal at a speed of 8.4 m/s. What is the maximum height reached?
A. 0.221 m B. 0.321 m C. 0.421 m D. 0.721 m E. 0.821 m 7/22/2017
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13. Acceleration The position of a train that moves along a downhill track is described by the function: x(t) = (15.0 m/s) t + (2.00 m/s2) t2 What is the acceleration of the train?
A. 0 m/s2 B. 4 m/s2 C. 8 m/s2 D. 16 m/s2 E. 32 m/s2 7/22/2017
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13. Acceleration The position of a train that moves along a downhill track is described by the function: x(t) = (15.0 m/s) t + (2.00 m/s2) t2 What is the acceleration of the train?
A. 0 m/s2 B. 4 m/s2 C. 8 m/s2 D. 16 m/s2 E. 32 m/s2 7/22/2017
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14. Horizontal speed A happy Physics 10 student kicked a ball hard, making it fall off an edge of a cliff. Right at the edge, the ball’s velocity is 5.00 m/s in the horizontal direction. What is the horizontal distance of the ball away from the cliff after it has fallen for 1.016 s?
A. 2.48 m B. 3.14 m C. 3.56 m D. 4.00 m E. 5.08 m 7/22/2017
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14. Horizontal speed A happy Physics 10 student kicked a ball hard, making it fall off an edge of a cliff. Right at the edge, the ball’s velocity is 5.00 m/s in the horizontal direction. What is the horizontal distance of the ball away from the cliff after it has fallen for 1.016 s?
A. 2.48 m B. 3.14 m C. 3.56 m D. 4.00 m E. 5.08 m 7/22/2017
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15. Long Jumper Consider a long jumper that leaves the ground at an angle of 20.00 above the horizontal at a speed of 11.0 m/s. How far does the jump in the horizontal direction?
A. 4.95 m B. 5.94 m C. 6.95 m D. 7.94 m E. 8.34 m 7/22/2017
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15. Long Jumper Consider a long jumper that leaves the ground at an angle of 20.00 above the horizontal at a speed of 11.0 m/s. How far does the jump in the horizontal direction?
A. 4.95 m B. 5.94 m C. 6.95 m D. 7.94 m E. 8.34 m 7/22/2017
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16. Vertical Motion A rock is thrown downward from the top of a 40 m tall tower with an initial speed of 12 m/s. Assuming negligible air resistance, what is the speed of the rock just before hitting the ground?
A. 24.0 m/s B. 28.0 m/s C. 30.5 m/s D. 56.2 m/s E. 392 m/s 7/22/2017
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16. Vertical Motion A rock is thrown downward from the top of a 40 m tall tower with an initial speed of 12 m/s. Assuming negligible air resistance, what is the speed of the rock just before hitting the ground?
A. 24.0 m/s B. 28.0 m/s C. 30.5 m/s D. 56.2 m/s E. 392 m/s 7/22/2017
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17. Stop! Consider a particle that moves along the x-axis. Its position varies with time according to the expression, x(t) = (4.0 m/s) t - (1.0 m/s2) t2 , where x is in meters and t is in seconds. At what time will the particle stop?
A. 0.5 s B. 1.0 s C. 1.5 s D. 2.0 s E. 4.0 s 7/22/2017
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17. Stop! Consider a particle that moves along the x-axis. Its position varies with time according to the expression, x(t) = (4.0 m/s) t - (1.0 m/s2) t2 , where x is in meters and t is in seconds. At what time will the particle stop?
A. 0.5 s B. 1.0 s C. 1.5 s D. 2.0 s E. 4.0 s 7/22/2017
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18. Free fall A stone is dropped from rest at the roof of a building. How far below the roof is the stone after 1.50 s?
A. 5.52 m B. 7.36 m C. 10.0 m D. 11.0 m E. 14.7 m 7/22/2017
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18. Free fall A stone is dropped from rest at the roof of a building. How far below the roof is the stone after 1.50 s?
A. 5.52 m B. 7.36 m C. 10.0 m D. 11.0 m E. 14.7 m 7/22/2017
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19. Average velocity Consider a particle that moves along the x-axis. Its position varies with time according to the expression, x(t) = (4.0 m/s) t + (2.0 m/s2) t2 , where x is in meters and t is in seconds. Assume the direction to the right as the positive direction. Determine the average velocities of the particle from t = 0 to t = 1.0 s?
A. -4.0 m/s B. 4.0 m/s C. -2.0 m/s D. 2.0 m/s E. 1.0 m/s 7/22/2017
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19. Average velocity Consider a particle that moves along the x-axis. Its position varies with time according to the expression, x(t) = (4.0 m/s) t + (2.0 m/s2) t2 , where x is in meters and t is in seconds. Assume the direction to the right as the positive direction. Determine the average velocities of the particle from t = 0 to t = 1.0 s?
A. -4.0 m/s B. 4.0 m/s C. -2.0 m/s D. 2.0 m/s E. 1.0 m/s 7/22/2017
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20. Vertically upward A ball is thrown vertically upwards with an initial speed of 3 m/s. What is the velocity of the ball at the maximum height of its trajectory?
A. 3 m/s B. -3 m/s C. 1 m/s D. -1 m/s E. 0 m/s 7/22/2017
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20. Vertically upward A ball is thrown vertically upwards with an initial speed of 3 m/s. What is the velocity of the ball at the maximum height of its trajectory?
A. 3 m/s B. -3 m/s C. 1 m/s D. -1 m/s E. 0 m/s 7/22/2017
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NEWTON’S LAWS
7/22/2017
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21. Inclined plane A 26 N crate is held at rest on a frictionless incline by a force F that is parallel to the incline. If the incline is 250 above the horizontal, the magnitude of the applied force is _____.
A. 4.1 N B. 4.6 N C. 11 N D. 22 N E. 23 N 7/22/2017
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21. Inclined plane A 26 N crate is held at rest on a frictionless incline by a force F that is parallel to the incline. If the incline is 250 above the horizontal, the magnitude of the applied force is _____.
A. 4.1 N B. 4.6 N C. 11 N D. 22 N E. 23 N 7/22/2017
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22. Not moving Consider a 2.00 kg box on a frictionless plane that is inclined at an angle of 300 with the horizontal. A force F is applied on the box with the direction along the incline. What is the magnitude of the force F applied to hold the box in place on the ramp? A. B. C. D. E. 7/22/2017
4.91 N 9.81 N 11.3 N 17.0 N 19.6 N 47
22. Not moving Consider a 2.00 kg box on a frictionless plane that is inclined at an angle of 300 with the horizontal. A force F is applied on the box with the direction along the incline. What is the magnitude of the force F applied to hold the box in place on the ramp? A. B. C. D. E. 7/22/2017
4.91 N 9.81 N 11.3 N 17.0 N 19.6 N 48
23. Atwoods machine Consider two objects of masses 1.0 kg and 2.0 kg that are hung vertically over a frictionless pulley of negligible mass, which form an arrangement known as an Atwood’s machine. A device that is sometimes used in the laboratory to determine the value of g. Determine the magnitude of the acceleration of the two objects. A. 0 m/s2 B. 2.24 m/s2 C. 3.27 m/s2 D. 6.54 m/s2 E. 29.4 m/s2 7/22/2017
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23. Atwoods machine Consider two objects of masses 1.0 kg and 2.0 kg that are hung vertically over a frictionless pulley of negligible mass, which form an arrangement known as an Atwood’s machine. A device that is sometimes used in the laboratory to determine the value of g. Determine the magnitude of the acceleration of the two objects. A. 0 m/s2 B. 2.24 m/s2 C. 3.27 m/s2 D. 6.54 m/s2 E. 29.4 m/s2 7/22/2017
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24. Elevator A 1100 kg elevator is rising and its speed is increasing at 3.0 m/s2. The tension in the elevator cable is ____. A. 1100 N B. 3300 N C. 11000 N D. 14000 N E. 16000 N 7/22/2017
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24. Elevator A 1100 kg elevator is rising and its speed is increasing at 3.0 m/s2. The tension in the elevator cable is ____. A. 1100 N B. 3300 N C. 11000 N D. 14000 N E. 16000 N 7/22/2017
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25. Sum of forces Two forces are applied to a 7.07 kg crate; one is 20.0 N to the north and the other is 20.0 N to the east. The magnitude of the acceleration of the crate is _____. A. B. C. D. E.
7/22/2017
0.50 m/s2 2.00 m/s2 4.00 m/s2 5.66 m/s2 8.00 m/s2
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25. Sum of forces Two forces are applied to a 7.07 kg crate; one is 20.0 N to the north and the other is 20.0 N to the east. The magnitude of the acceleration of the crate is _____. A. B. C. D. E.
7/22/2017
0.50 m/s2 2.00 m/s2 4.00 m/s2 5.66 m/s2 8.00 m/s2
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26. Normal force Consider a 2.00 kg box on a frictionless plane that is inclined at an angle of 300 with the horizontal. A force F is applied on the box with the direction along the incline. What is the magnitude of the normal force exerted by the plane on the box? A. B. C. D. E. 7/22/2017
9.81 N 11.3 N 15.0 N 17.0 N 19.6 N 55
26. Normal force Consider a 2.00 kg box on a frictionless plane that is inclined at an angle of 300 with the horizontal. A force F is applied on the box with the direction along the incline. What is the magnitude of the normal force exerted by the plane on the box? A. B. C. D. E. 7/22/2017
9.81 N 11.3 N 15.0 N 17.0 N 19.6 N 56
27. Two mass system Two masses m1 = 7.1 kg and m2 = 3.6 kg are connected by a string as shown. If the pulley is massless and the surface is frictionless, the magnitude of the acceleration of mass m2 is ___.
A. 1.6 m/s2 B. 2.2 m/s2 C. 3.3 m/s2 D. 4.9 m/s2 E. 6.5 m/s2 7/22/2017
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27. Two mass system Two masses m1 = 7.1 kg and m2 = 3.6 kg are connected by a string as shown. If the pulley is massless and the surface is frictionless, the magnitude of the acceleration of mass m2 is ___.
A. 1.6 m/s2 B. 2.2 m/s2 C. 3.3 m/s2 D. 4.9 m/s2 E. 6.5 m/s2 7/22/2017
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28. Elevator 2 A m = 80-kg man stands on a scale fastened to the floor of the elevator. The scale is calibrated in newtons. Note: g is the acceleration due to the gravity. What does the scale read when the elevator is moving upward at 20 m/s while its speed is decreasing at a rate of 8 m/s2?
A. 36.3 N B. 72.5 N C. 90.0 N D. 104 N E. 145 N 7/22/2017
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28. Elevator 2 A m = 80-kg man stands on a scale fastened to the floor of the elevator. The scale is calibrated in newtons. Note: g is the acceleration due to the gravity. What does the scale read when the elevator is moving upward at 20 m/s while its speed is decreasing at a rate of 8 m/s2?
A. 36.3 N B. 72.5 N C. 90.0 N D. 104 N E. 145 N 7/22/2017
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29. Tension 1 Consider two objects of masses 1.0 kg and 2.0 kg that are hung vertically over a frictionless pulley of negligible mass, which form an arrangement known as an Atwood’s machine. A device that is sometimes used in the laboratory to determine the value of g. Find the tension in the lightweight string. A. 3.27 N B. 4.91 N C. 6.54 N D. 13.1 N E. 0N 7/22/2017
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29. Tension 1 Consider two objects of masses 1.0 kg and 2.0 kg that are hung vertically over a frictionless pulley of negligible mass, which form an arrangement known as an Atwood’s machine. A device that is sometimes used in the laboratory to determine the value of g. Find the tension in the lightweight string. A. 3.27 N B. 4.91 N C. 6.54 N D. 13.1 N E. 0N 7/22/2017
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30. Tension 2 Two masses m1 = 7.1 kg and m2 = 3.6 kg are connected by a string as shown. If the pulley is massless and the surface is frictionless, the magnitude of the tension in the string is___.
A. 11.4 N B. 11.9 N C. 21.5 N D. 23.4 N E. 46.2 N 7/22/2017
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30. Tension 2 Two masses m1 = 7.1 kg and m2 = 3.6 kg are connected by a string as shown. If the pulley is massless and the surface is frictionless, the magnitude of the tension in the string is___.
A. 11.4 N B. 11.9 N C. 21.5 N D. 23.4 N E. 46.2 N 7/22/2017
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CIRCULAR MOTION AND GRAVITATION 7/22/2017
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31. Vertical Motion A 0.500-kg object is swung in a circular path and in a vertical plane on a 0.500-m-length string. If the angular speed at the bottom is 8.00 rad/s, what is the tension in the string when the object is at the bottom of the circle?
A. 5.60 N B. 10.5 N C. 15.2 N D. 16.7 N E. 20.9 N 7/22/2017
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31. Vertical Motion A 0.500-kg object is swung in a circular path and in a vertical plane on a 0.500-m-length string. If the angular speed at the bottom is 8.00 rad/s, what is the tension in the string when the object is at the bottom of the circle?
A. 5.60 N B. 10.5 N C. 15.2 N D. 16.7 N E. 20.9 N 7/22/2017
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32. Centripetal Acceleration A 0.20-m-radius automobile tire turns at a rate of 120 rpm (revolutions per minute). What is the centripetal acceleration of a point on the outer edge of the tire? Use: 1 rev = 6.28 radians
A. 2.00 m/s2 B. 3.77 m/s2 C. 12.6 m/s2 D. 31.6 m/s2 E. 47.4 m/s2 7/22/2017
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32. Centripetal Acceleration A 0.20-m-radius automobile tire turns at a rate of 120 rpm (revolutions per minute). What is the centripetal acceleration of a point on the outer edge of the tire? Use: 1 rev = 6.28 radians
A. 2.00 m/s2 B. 3.77 m/s2 C. 12.6 m/s2 D. 31.6 m/s2 E. 47.4 m/s2 7/22/2017
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33. Centripetal force A roller coaster, loaded with passengers, has a mass of 2 000 kg; the radius of curvature of the track at the bottom point of the dip is 24 m. If the vehicle has a speed of 18 m/s at this point, what force is exerted on the vehicle by the track? A. 54000 N B. 50000 N C. 47000 N D. 30000 N E. 23000 N 7/22/2017
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33. Centripetal force A roller coaster, loaded with passengers, has a mass of 2 000 kg; the radius of curvature of the track at the bottom point of the dip is 24 m. If the vehicle has a speed of 18 m/s at this point, what force is exerted on the vehicle by the track? A. 54000 N B. 50000 N C. 47000 N D. 30000 N E. 23000 N 7/22/2017
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34. Horizontal Distance When a point on the rim of a 0.30-m-radius wheel experiences a centripetal acceleration of 4.0 m/s2, what is the tangential speed of that point?
A. 0.88 m/s B. 0.95 m/s C. 1.10 m/s D. 1.22 m/s E. 1.33 m/s 7/22/2017
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34. Horizontal Distance When a point on the rim of a 0.30-m-radius wheel experiences a centripetal acceleration of 4.0 m/s2, what is the tangential speed of that point?
A. 0.88 m/s B. 0.95 m/s C. 1.10 m/s D. 1.22 m/s E. 1.33 m/s 7/22/2017
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35. Horizontal circle A stone is tied to the end of a string and is swung with constant speed around a horizontal circle with a radius of 1.50 m. If it makes two complete revolutions each second, its centripetal acceleration is _____.
A. 0.24 m/s2 B. 2.4 m/s2 C. 4.2 m/s2 D. 42 m/s2 E. 24o m/s2 7/22/2017
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35. Horizontal circle A stone is tied to the end of a string and is swung with constant speed around a horizontal circle with a radius of 1.50 m. If it makes two complete revolutions each second, its centripetal acceleration is _____.
A. 0.24 m/s2 B. 2.4 m/s2 C. 4.2 m/s2 D. 42 m/s2 E. 24o m/s2 7/22/2017
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36. Banked curve At what speed will a car round a 52-m-radius curve, banked at a 45° angle, if no friction is required between the road and tires to prevent the car from slipping?
A. 17 m/s B. 19 m//s C. 20 m/s D. 23 m/s E. 27 m/s 7/22/2017
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36. Banked curve At what speed will a car round a 52-m-radius curve, banked at a 45° angle, if no friction is required between the road and tires to prevent the car from slipping?
A. 17 m/s B. 19 m//s C. 20 m/s D. 23 m/s E. 27 m/s 7/22/2017
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37. Weight An object when orbiting the Earth at a height of three Earth radii from the center of the Earth has a weight of 1.00 N. What is the object's mass?
A. 0.102 kg B. 0.306 kg C. 0.704 kg D. 0.920 kg E. 1.00 kg 7/22/2017
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37. Weight An object when orbiting the Earth at a height of three Earth radii from the center of the Earth has a weight of 1.00 N. What is the object's mass?
A. 0.102 kg B. 0.306 kg C. 0.704 kg D. 0.920 kg E. 1.00 kg 7/22/2017
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38. Tangential Speed A satellite is in a circular orbit about the Earth at a distance of one Earth radius above the surface. What is the speed of the satellite?
A. 2800 m/s B. 3000 m/s C. 4200 m/s D. 5600 m/s E. 16800 m/s 7/22/2017
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38. Tangential Speed A satellite is in a circular orbit about the Earth at a distance of one Earth radius above the surface. What is the speed of the satellite?
A. 2800 m/s B. 3000 m/s C. 4200 m/s D. 5600 m/s E. 16800 m/s 7/22/2017
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39. Gravity If the mass of Mars is 0.107 times that of Earth, and its radius is 0.530 that of Earth, estimate the gravitational acceleration g at the surface of Mars.
A. 1.16 m/s2 B. 2.20 m/s2 C. 3.73 m/s2 D. 4.20 m/s2 E. 5.50 m/s2 7/22/2017
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39. Gravity If the mass of Mars is 0.107 times that of Earth, and its radius is 0.530 that of Earth, estimate the gravitational acceleration g at the surface of Mars.
A. 1.16 m/s2 B. 2.20 m/s2 C. 3.73 m/s2 D. 4.20 m/s2 E. 5.50 m/s2 7/22/2017
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40. Geosyncrhonous satellite Geosynchronous satellites orbit the Earth at a distance of 42 000 km from the Earth's center. Their angular speed at this height is the same as the rotation rate of the Earth, so they appear stationary at certain locations in the sky. What is the force acting on a 1 500-kg satellite at this height?
A. 85.0 N B. 155 N C. 333 N D. 404 N E. 457 N 7/22/2017
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40. Geosyncrhonous satellite Geosynchronous satellites orbit the Earth at a distance of 42 000 km from the Earth's center. Their angular speed at this height is the same as the rotation rate of the Earth, so they appear stationary at certain locations in the sky. What is the force acting on a 1 500-kg satellite at this height?
A. 85.0 N B. 155 N C. 333 N D. 404 N E. 457 N 7/22/2017
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