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Chapter 06, Problem 32 A pole-vaulter just dlears the bar at 4.09 m and falls back...
A pole-vaulter just clears the bar at 5.80 m and falls back to the ground. The...
A pole-vaulter just clears the bar at 5.80 m and falls back to the ground. The change in the vaulter's potential energy during the fall is -3.70 x 10^3 J. what is his weight?
A 63kg pole vaulter running at 11 m/s vaults over the bar.
A 63kg pole vaulter running at 11 m/s vaults over the bar. Her speed when she is above the bar is 1.5 m/s. Neglect air resistance, as well as any energy absorbed by the pole, and determine her altitude as she crosses the bar.
Two pole-vaulters just clear the bar at the same height. The first lands at a speed...
Two pole-vaulters just clear the bar at the same height. The first lands at a speed of 7.89 m/s, while the second lands at a speed of 8.15 m/s. The first vaulter clears the bar at a speed of 1.51 m/s. Ignore air resistance and friction and determine the speed at which the second vaulter clears the bar. Number Units
A 54 kg pole vaulter intends to pass over a 6.4-meter high bar. She needs to...
A 54 kg pole vaulter intends to pass over a 6.4-meter high bar. She needs to maintain a minimal speed of 0.72 m/s at the top in order to pass the bar. What is the minimum speed at which she should run in order to attain the height? Neglect air resistance, as well as any energy absorbed by the pole Answer in units of m/s and round to one decimal place. Hints: Mechanical energy is conserved during vaulting. KE at...
A 44-kg pole vaulter running at 10 m/s vaults over the bar. Her speed when she...
A 44-kg pole vaulter running at 10 m/s vaults over the bar. Her speed when she is above the bar is 1.4 m/s. Neglect air resistance, as well as any energy absorbed by the pole, and determine her altitude as she crosses the bar. m
A 69-kg pole vaulter running at 11 m/s vaults over the bar. Her speed when she...
A 69-kg pole vaulter running at 11 m/s vaults over the bar. Her speed when she is above the bar is 1.5 m/s. Neglect air resistance, as well as any energy absorbed by the pole, and determine her altitude as she crosses the bar. _____m
QUESTION 3 A 54 kg pole vaulter intends to pass over a 6.9-meter high bar. She...
QUESTION 3 A 54 kg pole vaulter intends to pass over a 6.9-meter high bar. She needs to maintain a minimal speed of 0.79 m/s at the top in order to pass the bar. What is the minimum speed at which she should run in order to attain the height? Neglect air resistance, as well as any energy absorbed by the pole. Answer in units of m/s and round to one decimal place. Hints: Mechanical energy is conserved during vaulting....
A pole vaulter is running at 8.7 m/s when he sets the pole and begins his...
A pole vaulter is running at 8.7 m/s when he sets the pole and begins his upward path. If, as he crosses over the bar at the highest point, his velocity is 0.39 m/s, what height did he attain? Assume no energy loss in the bending of the pole. *Technically, his center of mass Your work must show the solution using the Work-Energy Principle OR the Conservation of Energy Give your answer in meters to the correct number of significant...
a.) A 49-kg pole vaulter running at 11 m/s vaults over the bar. Her speed when...
a.) A 49-kg pole vaulter running at 11 m/s vaults over the bar. Her speed when she is above the bar is 1.1 m/s. Neglect air resistance, as well as any energy absorbed by the pole, and determine her altitude as she crosses the bar. b.) A skier of mass 60 kg is pulled up a slope by a motor-driven cable. (a) How much work is required to pull him 80 m up a 30° slope (assumed frictionless) at a...
Chapter 22, Problem 083 An electric dipole with dipole moment = (3.07 + 4.09 )(1.51 ×...
Chapter 22, Problem 083 An electric dipole with dipole moment =
(3.07 + 4.09 )(1.51 × 10-30 C·m) is in an electric field = (4160
N/C). (a) What is the potential energy of the electric dipole? (b)
What is the magnitude of torque acting on it? (c) If an external
agent turns the dipole until its electric dipole moment is = (-4.09
+ 3.07)(1.51 × 10-30 C·m), how much work is done by the
agent?
Chapter 22 Problem 083 An...
Two pole-vaulters just clear the bar at the same height. The first lands at a speed of 7.89 m/s, while the second lands at a speed of 8.15 m/s. The first vaulter clears the bar at a speed of 1.51 m/s. Ignore air resistance and friction and determine the speed at which the second vaulter clears the bar. Number Units
A 54 kg pole vaulter intends to pass over a 6.4-meter high bar. She needs to maintain a minimal speed of 0.72 m/s at the top in order to pass the bar. What is the minimum speed at which she should run in order to attain the height? Neglect air resistance, as well as any energy absorbed by the pole Answer in units of m/s and round to one decimal place. Hints: Mechanical energy is conserved during vaulting. KE at...
A pole vaulter is running at 8.7 m/s when he sets the pole and begins his upward path. If, as he crosses over the bar at the highest point, his velocity is 0.39 m/s, what height did he attain? Assume no energy loss in the bending of the pole. *Technically, his center of mass Your work must show the solution using the Work-Energy Principle OR the Conservation of Energy Give your answer in meters to the correct number of significant...
Chapter 22, Problem 083 An electric dipole with dipole moment =
(3.07 + 4.09 )(1.51 × 10-30 C·m) is in an electric field = (4160
N/C). (a) What is the potential energy of the electric dipole? (b)
What is the magnitude of torque acting on it? (c) If an external
agent turns the dipole until its electric dipole moment is = (-4.09
+ 3.07)(1.51 × 10-30 C·m), how much work is done by the
agent?
Chapter 22 Problem 083 An...
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