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Introductory Physics Homework Help Forum
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Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
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Title
Finding the Minimum Current for Magnetic Force to Equal Wire Weight
Dec 5, 2007
Replies
2
Views
2K
Solve for n: 119 = n^2 - 3n / 2
Dec 5, 2007
Replies
2
Views
2K
I'm stuck Not sure where to go. Help
Dec 5, 2007
Replies
5
Views
2K
Please take a look at that problem
Dec 5, 2007
Replies
1
Views
2K
Resistance and ohm's law with light bulb
Dec 5, 2007
Replies
2
Views
4K
Linear acceleration and a grinding wheel
Dec 5, 2007
Replies
5
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14K
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Dec 5, 2007
Replies
4
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11K
Thermodynamics/Entropy Question
Dec 5, 2007
Replies
1
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4K
Heat and adiabatic processes perhaps
Dec 5, 2007
Replies
2
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3K
Calculating Tension of Rope with Parallel Forces
Dec 5, 2007
Replies
2
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4K
How Far Must an Astronaut Be Above Earth to Weigh 0.01 of His Earth Weight?
Dec 5, 2007
Replies
5
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3K
What is the speed of the spring gun after the ball comes to rest
Dec 5, 2007
Replies
2
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3K
Net Gravitational Force Problem
Dec 5, 2007
Replies
5
Views
10K
Wavelength - how far away did earthquake occur
Dec 5, 2007
Replies
5
Views
4K
me with these Vector problems?
Dec 5, 2007
Replies
8
Views
3K
Rotational Kinematics of a Particle
Dec 5, 2007
Replies
4
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3K
Kinetic Energy/Velocity problem (not sure what I'm doing wrong)
Dec 5, 2007
Replies
3
Views
4K
Vector Problems: Finding Resultant Forces, Velocities & Components
Dec 5, 2007
Replies
1
Views
3K
Calculating Rotational Inertia: Two Masses and Two Rods
Dec 5, 2007
Replies
5
Views
3K
Drawing a Free Body Diagram for Drainpipe in Forklift
Dec 5, 2007
Replies
1
Views
3K
Kinetic and heat energy problem
Dec 5, 2007
Replies
7
Views
5K
Three Difficult Materials Questions (check my answers)
Dec 5, 2007
Replies
1
Views
4K
Solving a Simple Kinematics Problem: When Will Three Turtles Collide?
Dec 5, 2007
Replies
3
Views
1K
Zero Launch Angle: Vox and Angle
Dec 5, 2007
Replies
1
Views
11K
Collision and conservation of P
Dec 5, 2007
Replies
2
Views
2K
Hanging Cable (Projectile Motion?)
Dec 5, 2007
Replies
4
Views
5K
Need help with Physics word problem dealing with Momentum
Dec 5, 2007
Replies
2
Views
10K
Voltage drops - i don't understand
Dec 5, 2007
Replies
1
Views
3K
How Is Work Done by Gas Calculated in a Thermodynamic System?
Dec 5, 2007
Replies
1
Views
4K
Mass pushed by horizontal force at constant speed on an incline
Dec 5, 2007
Replies
4
Views
4K
Can Aluminum at 90 Degrees Celsius Melt 10 Grams of Ice?
Dec 5, 2007
Replies
1
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9K
Calculating Buoyancy in Oil/Water: Solving for Height of Cylinder
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Replies
3
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13K
What is the Force on a Wall from a Horizontal Water Jet?
Dec 5, 2007
Replies
5
Views
4K
Why is current not considered to be a vector?
Dec 5, 2007
Replies
2
Views
3K
Calculating Recoil Velocity: Female Character in Diamonds Are Forever
Dec 5, 2007
Replies
2
Views
6K
What is the length of the vibrating section of the violin string?
Dec 5, 2007
Replies
4
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12K
What Bad Physics and Laws Are Broken in Jurassic Park III?
Dec 5, 2007
Replies
1
Views
3K
Calculating the Sun's Power Output
Dec 5, 2007
Replies
1
Views
5K
Solving Solar Energy Problem: Collector Area Needed
Dec 5, 2007
Replies
4
Views
6K
Special Relativity and Relative motion
Dec 5, 2007
Replies
8
Views
2K
Friction Problem: Find Time to Rest w/ Force of 5.0 N
Dec 5, 2007
Replies
1
Views
2K
Simple Harmonics - Kind of wierd
Dec 5, 2007
Replies
4
Views
7K
Locating Object and Image with Converging Lens
Dec 5, 2007
Replies
1
Views
4K
What Happens to Amplitude When One of Two Glued Balls on a Spring Detaches?
Dec 5, 2007
Replies
7
Views
4K
Linear Velocity at Top (Rotational Kinematics)
Dec 5, 2007
Replies
1
Views
3K
People run faster than they walk
Dec 5, 2007
Replies
8
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4K
What is the ratio of the amplitudes of the two waves?
Dec 5, 2007
Replies
3
Views
23K
Help with free body diagram for circular motion
Dec 5, 2007
Replies
2
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17K
Sweaty Biker and Energy Consumption
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Replies
1
Views
3K
Find Average Acceleration of a Turning Car in 2.0s | Step-by-Step Guide
Dec 5, 2007
Replies
3
Views
2K
How Does Special Relativity Explain the Michelson-Morley Experiment Results?
Dec 5, 2007
Replies
1
Views
3K
How Far Must a Small Piston Be Pushed to Lift a Larger One by 20 cm?
Dec 5, 2007
Replies
1
Views
8K
What Makes a Parachute Safe in Physics?
Dec 5, 2007
Replies
4
Views
4K
Determining length of highway deceleration ramp, with friction
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Replies
1
Views
4K
Universal Gravitation Ice Rink Problem
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Replies
14
Views
4K
Solve a Quick Math Question: How Many Sides in a Polygon w/ 119 Diagonals?
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Replies
2
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3K
Satellite Problem: 2 Difficulties of Effective Communic.
Dec 5, 2007
Replies
3
Views
3K
AP Physics Free-Response Practice Question #2
Dec 5, 2007
Replies
2
Views
8K
Force between two parallel wires
Dec 5, 2007
Replies
1
Views
7K
AP Physics Free-Response Practice Question
Dec 5, 2007
Replies
1
Views
6K
How Can Torque Determine the Weight of an Unknown Object?
Dec 5, 2007
Replies
1
Views
2K
Determination of planck's constant
Dec 4, 2007
Replies
9
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15K
How much energy will be released when the meteor hits Jupiter?
Dec 4, 2007
Replies
4
Views
8K
How Can You Design an FM Radio Receiver to Favor One Station Over Another?
Dec 4, 2007
Replies
1
Views
8K
How Do You Solve Complex Force and Tension Problems in Physics?
Dec 4, 2007
Replies
2
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13K
The Final Temperature and Remaining Ice in a Calorimetry Experiment
Dec 4, 2007
Replies
2
Views
4K
How Do You Calculate the Line Integral of a Magnetic Field Between Two Points?
Dec 4, 2007
Replies
1
Views
8K
A Refraction of Light Question : Why Does Diamond Sparkle More? (Ans. )
Dec 4, 2007
Replies
1
Views
12K
Levitating a rod - magnetic field/forces
Dec 4, 2007
Replies
3
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29K
Solving Nylon Rope Fracture Problem Up to 25 kg Lift Height
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Replies
4
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10K
Torque - Finding the unknown weight
Dec 4, 2007
Replies
4
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7K
Decibels and intensity of police car siren
Dec 4, 2007
Replies
4
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12K
Spring constant and oscillation frequency
Dec 4, 2007
Replies
5
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23K
What is the Initial Angular Acceleration of a Disk Released from Rest?
Dec 4, 2007
Replies
2
Views
12K
Current Through First Resistor in a Parallel Circuit
Dec 4, 2007
Replies
4
Views
3K
Help find work done associated with electric potential
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Replies
9
Views
5K
How many revolutions does a washing machine tub make during a spin cycle?
Dec 4, 2007
Replies
7
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10K
What Is the Average Speed of a Motorist Traveling Different Speeds?
Dec 4, 2007
Replies
1
Views
2K
Calculate Intensity of Sound Wave at Cliff from Radio Source
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Replies
3
Views
6K
A few problems (forces, energy, gravitation)
Dec 4, 2007
Replies
2
Views
4K
What is the maximum angle for a ladder to lean against a wall without slipping?
Dec 4, 2007
Replies
2
Views
7K
Constructive/Destructive Stereo Interference
Dec 4, 2007
Replies
1
Views
6K
Equillibrium ladder on a wall problem
Dec 4, 2007
Replies
4
Views
3K
Finding the Minimum and Maximum Speed on a Sloped Surface
Dec 4, 2007
Replies
6
Views
4K
Direction of the frictional force
Dec 4, 2007
Replies
2
Views
2K
Calculating Spring Constant for SHM with Bullet Impact
Dec 4, 2007
Replies
14
Views
4K
Transverse Wave Homework Problem
Dec 4, 2007
Replies
1
Views
7K
What is the relationship between A_{c} and A_{s} in simple harmonic motion?
Dec 4, 2007
Replies
2
Views
2K
How Does Momentum Affect Motion in Different Scenarios?
Dec 4, 2007
Replies
2
Views
11K
Difference between potential energy on Earth and in orbit
Dec 4, 2007
Replies
8
Views
4K
Spring Problem and average force
Dec 4, 2007
Replies
4
Views
3K
What Are the Outcomes of a Tennis Ball and Basketball Elastic Collision?
Dec 4, 2007
Replies
1
Views
10K
Period/Frequency of a Rotational Object
Dec 4, 2007
Replies
7
Views
7K
Solve Circuit: Find ΔQ for Switch T Turned Off
Dec 4, 2007
Replies
2
Views
4K
Calculating Crane Power with Constant Velocity: Two Homework Problems
Dec 4, 2007
Replies
3
Views
3K
Sun and Earth Mass, Distance, and Center-of-Mass Problem: Exam Sample
Dec 4, 2007
Replies
10
Views
4K
Find Fundamental Frequency & Tension of Oscillating Wire in Tube
Dec 4, 2007
Replies
3
Views
3K
What happens when a bug lands on a spinning sphere?
Dec 4, 2007
Replies
9
Views
9K
Potential Energy in to Kinetic Experiment
Dec 4, 2007
Replies
1
Views
6K
What is the Next Step in Calculating Wavelength for Singly Ionized Helium?
Dec 4, 2007
Replies
9
Views
10K
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