A diffraction grating has 300 lines per mm.If light of frequency 4.76 × 1014 Hz is sent through this grating,at what angle does the first order maximum occur? (c = 3.00 × 108 m/s)

A) 56° B) 44° C) 22° D) 11° E) 28° A) 56° B) 44° C) 22° D) 11° E) 28°

The acceleration of an object as a function of time is given by a(t)= (3.00 m/s3)t,where t is in seconds. If the object is at rest at time t = 0.00 s,what is the velocity of the object at time t = 6.00 s?

A) 18.0 m/s B) 54.0 m/s C) 0.00 m/s D) 15.0 m/s E) 108 m/s A) 18.0 m/s B) 54.0 m/s C) 0.00 m/s D) 15.0 m/s E) 108 m/s

Exam 1: A: Foundations

Two long parallel wires carry currents of 20 A and 5.0 A in opposite directions. The wires are separated by 0.20 m. What is the magnitude of the magnetic field midway between the two wires? (μ₀ = 4π × 10^-7 T • m/A)

(Multiple Choice)

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Question 101

A traveler pulls on a suitcase strap at an angle 36° above the horizontal.If 908 J of work are done by the strap while moving the suitcase a horizontal distance of 15 m,what is the tension in the strap?

(Multiple Choice)

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Question 102

A time-varying horizontal force F(t)= At⁴ + Bt² acts for 0.500 s on a 12.25-kg object,starting at time t = 1.00 s.In the SI system,A has the numerical value 4.50 and B has the numerical value 8.75. (a)What are the SI units of A and B? (b)What impulse does this force impart to the object?

(Short Answer)

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Question 103

In the figure Q = 5.8 nC and all other quantities are accurate to 2 significant figures.What is the magnitude of the force on the charge Q? (k = 1/4πε₀ = 8.99 × 10⁹ N • m²/C²)

(Multiple Choice)

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Question 104

A projectile returns to its original height 4.08 s after being launched,during which time it travels 76.2 m horizontally.If air resistance can be neglected,what was the projectile's initial speed?

(Short Answer)

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Question 105

In the figure,all the charges are point charges and the charge in the middle is Q = -3.1 nC.For what charge q₁ will charge q₂ be in static equilibrium?

(Multiple Choice)

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Question 106

A ball drops some distance and loses 30 J of gravitational potential energy.Do NOT ignore air resistance.How much kinetic energy did the ball gain?

(Multiple Choice)

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Question 107

A diffraction grating has 300 lines per mm.If light of frequency 4.76 × 10¹⁴ Hz is sent through this grating,at what angle does the first order maximum occur? (c = 3.00 × 10⁸ m/s)

(Multiple Choice)

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Question 108

A uniform meter stick is freely pivoted about the 0.20-m mark.If it is allowed to swing in a vertical plane with a small amplitude and friction,what is the frequency of its oscillations?

(Multiple Choice)

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Question 109

A shell explodes into two fragments,one fragment 25 times heavier than the other.If any gas from the explosion has negligible mass,then

(Multiple Choice)

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Question 110

For the wave shown in the figure,the wavelength is

(Multiple Choice)

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Question 111

The acceleration of an object as a function of time is given by a(t)= (3.00 m/s³)t,where t is in seconds. If the object is at rest at time t = 0.00 s,what is the velocity of the object at time t = 6.00 s?

(Multiple Choice)

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Question 112

A uniform solid disk of radius 1.60 m and mass 2.30 kg rolls without slipping to the bottom of an inclined plane.If the angular velocity of the disk is 5.35 rad/s at the bottom,what is the height of the inclined plane?

(Multiple Choice)

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Question 113

Water is flowing in a horizontal pipe of diameter d.If you want to change the diameter of this pipe so that the speed of the water would be half as great as it was,what should be the new diameter?

(Multiple Choice)

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Question 114

A circular metal ring is situated above a long straight wire,as shown in the figure.The straight wire has a current flowing to the right,and the current is increasing in time at a constant rate.Which statement is true?

(Multiple Choice)

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Question 115

In the figure,a block of mass m is moving along the horizontal frictionless surface with a speed of 5.70 m/s.If the slope is 11.0° and the coefficient of kinetic friction between the block and the incline is 0.260,how far does the block travel up the incline?

(Short Answer)

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Question 116

A driver in a 1000 kg car traveling at 20 m/s slams on the brakes and skids to a stop.If the coefficient of friction between the tires and the horizontal road is 0.80,how long will the skid marks be?

(Multiple Choice)

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Question 117

The figure shows two long wires carrying equal currents I₁ and I₂ flowing in opposite directions.Which of the arrows labeled A through D correctly represents the direction of the magnetic field due to the wires at a point located at an equal distance d from each wire?

(Multiple Choice)

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Question 118

Light from a monochromatic source shines through a double slit onto a screen 5.00 m away.The slits are 0.180 mm apart.The dark bands on the screen are measured to be 1.70 cm apart.What is the wavelength of the incident light?

(Multiple Choice)

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Question 119

How fast must a proton move so that its kinetic energy is 80% of its total energy?

(Multiple Choice)

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Question 120

Showing 101 - 120 of 1480

Exam 1: A: Foundations

Two long parallel wires carry currents of 20 A and 5.0 A in opposite directions. The wires are separated by 0.20 m. What is the magnitude of the magnetic field midway between the two wires? (μ0 = 4π × 10-7 T • m/A)

A traveler pulls on a suitcase strap at an angle 36° above the horizontal.If 908 J of work are done by the strap while moving the suitcase a horizontal distance of 15 m,what is the tension in the strap?

A time-varying horizontal force F(t)= At4 + Bt2 acts for 0.500 s on a 12.25-kg object,starting at time t = 1.00 s.In the SI system,A has the numerical value 4.50 and B has the numerical value 8.75. (a)What are the SI units of A and B? (b)What impulse does this force impart to the object?

In the figure Q = 5.8 nC and all other quantities are accurate to 2 significant figures.What is the magnitude of the force on the charge Q? (k = 1/4πε0 = 8.99 × 109 N • m2/C2)

A projectile returns to its original height 4.08 s after being launched,during which time it travels 76.2 m horizontally.If air resistance can be neglected,what was the projectile's initial speed?

In the figure,all the charges are point charges and the charge in the middle is Q = -3.1 nC.For what charge q1 will charge q2 be in static equilibrium?

A ball drops some distance and loses 30 J of gravitational potential energy.Do NOT ignore air resistance.How much kinetic energy did the ball gain?

A diffraction grating has 300 lines per mm.If light of frequency 4.76 × 1014 Hz is sent through this grating,at what angle does the first order maximum occur? (c = 3.00 × 108 m/s)

A uniform meter stick is freely pivoted about the 0.20-m mark.If it is allowed to swing in a vertical plane with a small amplitude and friction,what is the frequency of its oscillations?

A shell explodes into two fragments,one fragment 25 times heavier than the other.If any gas from the explosion has negligible mass,then

For the wave shown in the figure,the wavelength is

The acceleration of an object as a function of time is given by a(t)= (3.00 m/s3)t,where t is in seconds. If the object is at rest at time t = 0.00 s,what is the velocity of the object at time t = 6.00 s?

A uniform solid disk of radius 1.60 m and mass 2.30 kg rolls without slipping to the bottom of an inclined plane.If the angular velocity of the disk is 5.35 rad/s at the bottom,what is the height of the inclined plane?

Water is flowing in a horizontal pipe of diameter d.If you want to change the diameter of this pipe so that the speed of the water would be half as great as it was,what should be the new diameter?

A circular metal ring is situated above a long straight wire,as shown in the figure.The straight wire has a current flowing to the right,and the current is increasing in time at a constant rate.Which statement is true?

In the figure,a block of mass m is moving along the horizontal frictionless surface with a speed of 5.70 m/s.If the slope is 11.0° and the coefficient of kinetic friction between the block and the incline is 0.260,how far does the block travel up the incline?

A driver in a 1000 kg car traveling at 20 m/s slams on the brakes and skids to a stop.If the coefficient of friction between the tires and the horizontal road is 0.80,how long will the skid marks be?

The figure shows two long wires carrying equal currents I1 and I2 flowing in opposite directions.Which of the arrows labeled A through D correctly represents the direction of the magnetic field due to the wires at a point located at an equal distance d from each wire?

Light from a monochromatic source shines through a double slit onto a screen 5.00 m away.The slits are 0.180 mm apart.The dark bands on the screen are measured to be 1.70 cm apart.What is the wavelength of the incident light?

How fast must a proton move so that its kinetic energy is 80% of its total energy?

Foundations

Motion in One Dimension

Acceleration

Momentum

Energy

Principle of Relativity

Interactions

Force

Work

Motion in a Plane

Motion in a Circle

Torque

Gravity

Special Relativity

Periodic Motion

Waves in One Dimension

Waves in Two and Three Dimensions

Fluids

Entropy

Energy Transferred Thermally

Degradation of Energy

Electric Interactions

The Electric Field

Gausss Law

Work and Energy in Electrostatics

Charge Separation and Storage

Magnetic Interactions

Magnetic Fields of Charged Particles in Motion

Changing Magnetic Fields

Changing Electric Fields

Electric Circuits

Electronics

Ray Optics

Wave and Particle Optics

Filters

Two long parallel wires carry currents of 20 A and 5.0 A in opposite directions. The wires are separated by 0.20 m. What is the magnitude of the magnetic field midway between the two wires? (μ₀ = 4π × 10^-7 T • m/A)

A time-varying horizontal force F(t)= At⁴ + Bt² acts for 0.500 s on a 12.25-kg object,starting at time t = 1.00 s.In the SI system,A has the numerical value 4.50 and B has the numerical value 8.75. (a)What are the SI units of A and B? (b)What impulse does this force impart to the object?

In the figure Q = 5.8 nC and all other quantities are accurate to 2 significant figures.What is the magnitude of the force on the charge Q? (k = 1/4πε₀ = 8.99 × 10⁹ N • m²/C²)

In the figure,all the charges are point charges and the charge in the middle is Q = -3.1 nC.For what charge q₁ will charge q₂ be in static equilibrium?

A diffraction grating has 300 lines per mm.If light of frequency 4.76 × 10¹⁴ Hz is sent through this grating,at what angle does the first order maximum occur? (c = 3.00 × 10⁸ m/s)

The acceleration of an object as a function of time is given by a(t)= (3.00 m/s³)t,where t is in seconds. If the object is at rest at time t = 0.00 s,what is the velocity of the object at time t = 6.00 s?

The figure shows two long wires carrying equal currents I₁ and I₂ flowing in opposite directions.Which of the arrows labeled A through D correctly represents the direction of the magnetic field due to the wires at a point located at an equal distance d from each wire?