An object of mass 0.50 kg is transported to the surface of Planet X where the object's weight is measured to be 10 N.The radius of the planet is 4.0 × 106 m.What free fall acceleration will the 0.50 kg object experience when transported to a distance of 2.0 × 106 m from the surface of this planet?

A) 90 m/s2 B) 8.9 m/s2 C) 13 m/s2 D) 18 m/s2 A) 90 m/s2 B) 8.9 m/s2 C) 13 m/s2 D) 18 m/s2

An object of mass 0.50 kg is transported to the surface of Planet X where the object's weight is measured to be 10 N.The radius of the planet is 4.0 × 106 m.What free fall acceleration will the 0.50 kg object experience when at the surface of Planet X?

A) 48 m/s2 B) 20 m/s2 C) 16 m/s2 D) 40 m/s2 A) 48 m/s2 B) 20 m/s2 C) 16 m/s2 D) 40 m/s2

A point on the rim of a 0.25-m radius fan blade has centripetal acceleration of 0.20 m/s2.Find the centripetal acceleration of a point 0.1 m from the center of the same wheel.

A) 0.01 m/s2 B) 0.02 m/s2 C) 0.04 m/s2 D) 0.08 m/s2 A) 0.01 m/s2 B) 0.02 m/s2 C) 0.04 m/s2 D) 0.08 m/s2

Exam 5: Energy: Part A

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A satellite is in a circular orbit about the Earth at a distance of two Earth radii above the surface.What is the speed of the satellite? (The radius of the Earth is 6.4 × 10⁶ m,and G = 6.67 × 10−¹¹ N × m²/kg². )

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Question 1

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A ventilation fan has blades 0.50 m long rotating at 20 rpm.What is the centripetal acceleration of a point on the outer tip of a blade?

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An object of mass 0.50 kg is transported to the surface of Planet X where the object's weight is measured to be 10 N.The radius of the planet is 4.0 × 10⁶ m.What is the mass of Planet X? (G = 6.67 × 10−¹¹ N × m²/kg²)

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Question 3

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At what angle (relative to the horizontal)should a curve 52 m in radius be banked if no friction is required to prevent the car from slipping when traveling at 10 m/s? (g = 9.8 m/s²)

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Question 4

A double star system with each star having the mass of the Sun has an orbital period of 1 year.A second double star system,also with each star having the mass of the Sun,has an orbital period of 8 years.If the separation of the stars in the first system is d and the orbits in both cases are circular,what is the separation of the stars in the second system?

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Question 5

At an altitude of 3 times the radius of the Earth,the acceleration due to gravity is

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Question 6

In order to train for a high-g environment,an astronaut is placed in a centrifuge of radius several meters and rotated in a horizontal circle at constant speed.In this situation,in which direction is the net force on the astronaut?

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Question 7

An object of mass 0.50 kg is transported to the surface of Planet X where the object's weight is measured to be 10 N.The radius of the planet is 4.0 × 10⁶ m.What free fall acceleration will the 0.50 kg object experience when transported to a distance of 2.0 × 10⁶ m from the surface of this planet?

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Question 8

A 0.40-kg mass,attached to the end of a 0.75-m string,is whirled around in a circular horizontal path.If the maximum tension that the string can withstand is 400 N,then what maximum speed can the mass have if the string is not to break?

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Question 9

An Earth satellite is orbiting at a distance from the Earth's surface equal to two Earth radii.At this location,the acceleration due to gravity is what factor times the value of g at the Earth's surface?

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Question 10

A point on the rim of a 0.30-m radius rotating wheel has a tangential speed of 4.0 m/s.What is the tangential speed of a point 0.10 m from the center of the same wheel?

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Question 11

An object of mass 0.50 kg is transported to the surface of Planet X where the object's weight is measured to be 10 N.The radius of the planet is 4.0 × 10⁶ m.What free fall acceleration will the 0.50 kg object experience when at the surface of Planet X?

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Question 12

An airplane in a wide sweeping "outside" loop can create 0-g inside the aircraft cabin.What must be the radius of curvature of the flight path for an aircraft moving at 180 m/s to create a condition of "weightlessness" inside the aircraft?

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Question 13

A point on the rim of a 0.25-m radius fan blade has centripetal acceleration of 0.20 m/s².Find the centripetal acceleration of a point 0.1 m from the center of the same wheel.

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Question 14

Two satellites are monitored as they orbit the Earth;satellite X is four times as far from the Earth's center as is satellite Y.From Kepler's third law one may conclude that the period of revolution of X is what factor times that of Y?

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Question 15

How many revolutions per second are needed for a centrifuge to produce an acceleration of 1 200g at a radius arm of 15.0 cm?

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Question 16

A 1500-kg car rounds an unbanked curve with a radius of 52 m at a speed of 14 m/s.What minimum coefficient of friction must exist between the road and tires to prevent the car from slipping? (g = 9.8 m/s²)

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Question 17

At what speed will a car round a 125 m radius curve,banked at a 45° angle,if no friction is required between the road and tires to prevent the car from slipping? (g = 9.8 m/s²)

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Question 18

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 2000-kg satellite at this height? The radius of the Earth is )(Hint: Use that gravity behaves as ) )

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Question 19

A careful photographic survey of Jupiter's moon Io by the spacecraft Voyager 1 showed active volcanoes spewing liquid sulfur to heights of 60 km above the surface of this moon.If the value of g on Io is 2.0 m/s²,estimate the speed with which the liquid sulfur left the volcano.

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Question 20

Showing 1 - 20 of 32

Exam 5: Energy: Part A

A satellite is in a circular orbit about the Earth at a distance of two Earth radii above the surface.What is the speed of the satellite? (The radius of the Earth is 6.4 × 106 m,and G = 6.67 × 10−11 N × m2/kg2. )

A ventilation fan has blades 0.50 m long rotating at 20 rpm.What is the centripetal acceleration of a point on the outer tip of a blade?

An object of mass 0.50 kg is transported to the surface of Planet X where the object's weight is measured to be 10 N.The radius of the planet is 4.0 × 106 m.What is the mass of Planet X? (G = 6.67 × 10−11 N × m2/kg2)

At what angle (relative to the horizontal)should a curve 52 m in radius be banked if no friction is required to prevent the car from slipping when traveling at 10 m/s? (g = 9.8 m/s2)

At an altitude of 3 times the radius of the Earth,the acceleration due to gravity is

In order to train for a high-g environment,an astronaut is placed in a centrifuge of radius several meters and rotated in a horizontal circle at constant speed.In this situation,in which direction is the net force on the astronaut?

A 0.40-kg mass,attached to the end of a 0.75-m string,is whirled around in a circular horizontal path.If the maximum tension that the string can withstand is 400 N,then what maximum speed can the mass have if the string is not to break?

An Earth satellite is orbiting at a distance from the Earth's surface equal to two Earth radii.At this location,the acceleration due to gravity is what factor times the value of g at the Earth's surface?

A point on the rim of a 0.30-m radius rotating wheel has a tangential speed of 4.0 m/s.What is the tangential speed of a point 0.10 m from the center of the same wheel?

An object of mass 0.50 kg is transported to the surface of Planet X where the object's weight is measured to be 10 N.The radius of the planet is 4.0 × 106 m.What free fall acceleration will the 0.50 kg object experience when at the surface of Planet X?

An airplane in a wide sweeping "outside" loop can create 0-g inside the aircraft cabin.What must be the radius of curvature of the flight path for an aircraft moving at 180 m/s to create a condition of "weightlessness" inside the aircraft?

A point on the rim of a 0.25-m radius fan blade has centripetal acceleration of 0.20 m/s2.Find the centripetal acceleration of a point 0.1 m from the center of the same wheel.

Two satellites are monitored as they orbit the Earth;satellite X is four times as far from the Earth's center as is satellite Y.From Kepler's third law one may conclude that the period of revolution of X is what factor times that of Y?

How many revolutions per second are needed for a centrifuge to produce an acceleration of 1 200g at a radius arm of 15.0 cm?

A 1500-kg car rounds an unbanked curve with a radius of 52 m at a speed of 14 m/s.What minimum coefficient of friction must exist between the road and tires to prevent the car from slipping? (g = 9.8 m/s2)

At what speed will a car round a 125 m radius curve,banked at a 45° angle,if no friction is required between the road and tires to prevent the car from slipping? (g = 9.8 m/s2)

A careful photographic survey of Jupiter's moon Io by the spacecraft Voyager 1 showed active volcanoes spewing liquid sulfur to heights of 60 km above the surface of this moon.If the value of g on Io is 2.0 m/s2,estimate the speed with which the liquid sulfur left the volcano.

Introduction

Introduction: Part A

Motion in One Dimension

Motion in One Dimension: Part A

Vectors and Two-Dimensional Motion

Vectors and Two-Dimensional Motion: Part A

The Laws of Motion

The Laws of Motion: Part A

Energy

Momentum and Collisions

Momentum and Collisions: Part A

Rotational Motion and the Law of Gravity

Rotational Motion and the Law of Gravity: Part A

Rotational Equilibrium and Rotational Dynamics

Rotational Equilibrium and Rotational Dynamics: Part A

Solids and Fluids

Solids and Fluids: Part A

Thermal Physics

Thermal Physics: Part A

Energy in Thermal Processes Heat and Internal Energy

Energy in Thermal Processes Heat and Internal Energy: Part A

The Laws of Thermodynamics Work in Thermodynamic Processes

The Laws of Thermodynamics Work in Thermodynamic Processes: Part A

Vibrations and Waves

Vibrations and Waves: Part A

Sound

Sound: Part A

Electric Forces and Electric Fields

Electric Forces and Electric Fields: Part A

Electrical Energy and Capacitance

Electrical Energy and Capacitance: Part A

Current and Resistance Electric Current

Current and Resistance Electric Current: Part A

Direct-Current Circuits Sources of EMF

Direct-Current Circuits Sources of EMF: Part A

Magnetism Magnets

Magnetism Magnets: Part A

Induced Voltages and Inductance

Induced Voltages and Inductance: Part A

Alternating-Current Circuits and Electromagnetic Waves

Alternating-Current Circuits and Electromagnetic Waves: Part A

Reflection and Refraction of Light

Reflection and Refraction of Light: Part A

Mirrors and Lenses

Mirrors and Lenses: Part A

Wave Optics

Wave Optics: Part A

Optical Instruments

Optical Instruments: Part A

Relativity

Relativity: Part A

Quantum Physics Blackbody Radiation and Plancks Hypothesis

Quantum Physics Blackbody Radiation and Plancks Hypothesis: Part A

Atomic Physics

Atomic Physics: Part A

Nuclear Physics

Nuclear Physics: Part A

Nuclear Energy and Elementary Particles

Nuclear Energy and Elementary Particles: Part A

Particle Collisions, Mediating Photons, and Quark Structures: Exploring the Fundamentals of Physics

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A satellite is in a circular orbit about the Earth at a distance of two Earth radii above the surface.What is the speed of the satellite? (The radius of the Earth is 6.4 × 10⁶ m,and G = 6.67 × 10−¹¹ N × m²/kg². )

An object of mass 0.50 kg is transported to the surface of Planet X where the object's weight is measured to be 10 N.The radius of the planet is 4.0 × 10⁶ m.What is the mass of Planet X? (G = 6.67 × 10−¹¹ N × m²/kg²)

At what angle (relative to the horizontal)should a curve 52 m in radius be banked if no friction is required to prevent the car from slipping when traveling at 10 m/s? (g = 9.8 m/s²)

An object of mass 0.50 kg is transported to the surface of Planet X where the object's weight is measured to be 10 N.The radius of the planet is 4.0 × 10⁶ m.What free fall acceleration will the 0.50 kg object experience when at the surface of Planet X?

A point on the rim of a 0.25-m radius fan blade has centripetal acceleration of 0.20 m/s².Find the centripetal acceleration of a point 0.1 m from the center of the same wheel.

A 1500-kg car rounds an unbanked curve with a radius of 52 m at a speed of 14 m/s.What minimum coefficient of friction must exist between the road and tires to prevent the car from slipping? (g = 9.8 m/s²)

At what speed will a car round a 125 m radius curve,banked at a 45° angle,if no friction is required between the road and tires to prevent the car from slipping? (g = 9.8 m/s²)

A careful photographic survey of Jupiter's moon Io by the spacecraft Voyager 1 showed active volcanoes spewing liquid sulfur to heights of 60 km above the surface of this moon.If the value of g on Io is 2.0 m/s²,estimate the speed with which the liquid sulfur left the volcano.