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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Parallel Plate Capacitor (work and potential difference)
- jrzygrl
- · Replies 6 ·
Physic tangential and Angular Acceleration
- Ravin
- · Replies 1 ·
Natural force of circular motion
- peweee17
- · Replies 1 ·
How Long Does It Take a Raindrop to Reach 63% of Its Terminal Velocity?
- peweee17
- · Replies 1 ·
Aircraft approaching landing, vector, velocity, position problem. Help
- raven2783
- · Replies 1 ·
E-field for a rectangle of charge
- Xelotath
- · Replies 5 ·
A question about converting dimensions
- MrEnergy
- · Replies 6 ·
Solving a Buoyancy Question - 6.4 N Weight in Water
- abhs94
- · Replies 2 ·
How Much Force Does a Car Exert on the Road When Pulling a Trailer?
- szszcool
- · Replies 1 ·
Rotational Kinematics-Bead Constrained in a Hoop Rotating
- Darkalyan
- · Replies 2 ·
Model Airplane-Work-Energy Theorem and Kinetic Energy
- pstfleur
- · Replies 2 ·
What is the Specific Heat of the Substance in This Calorimetry Problem?
- Jeylan
- · Replies 5 ·
Inelastic collision at an angle with two cars
- huh
- · Replies 7 ·
Inelastic collision at an angle
- powerofsamson
- · Replies 3 ·
Newton laws object on incline in equlibrium
- jwxie
- · Replies 4 ·
Equivalent circuit for non linear capasitor
- EHT
- · Replies 4 ·
Where Is the Electric Field and Potential Zero for Two Point Charges on an Axis?
- Shackleford
- · Replies 2 ·
Magnitude of Kinetic Frictional Force on Fireman Sliding Down Pole
- lalalah
- · Replies 13 ·
Capacitors with partial dielectrics
- clope023
- · Replies 6 ·
Thrush required to hover, take off and accelerate?
- Robert Rice
- · Replies 5 ·
Coefficient of Friction on an Inclined Plane
- Bamshakalaka
- · Replies 4 ·
Direction of Displacement Vector [2D Kinematics]
- stickyriceyum
- · Replies 1 ·
The Work-Energy Theorwm and Kinetic Energy
- pstfleur
- · Replies 3 ·
Max acceleration w/ a tension limit
- j123
- · Replies 9 ·
Work and kinetic energy for a 6.0kg block on a 60° incline
- maniacp08
- · Replies 5 ·
Simple conservation of energy problem
- ehilge
- · Replies 3 ·
Why do sprinters start in a crouched position?
- pikapika1
- · Replies 6 ·
Kinetic energy and work energy thereom
- amannaan2000
- · Replies 3 ·
Solving the Roller Coaster Speed Problem: A Max Speed of 20
- theowne
- · Replies 1 ·
Calculating Contact Forces Between Three Blocks on a Frictionless Surface
- robvba
- · Replies 4 ·
Calculating Horizontal Distance of a Dropped Package from a Flying Plane
- knelson
- · Replies 2 ·
Force needed to keep block from moving on frictionless triangular block
- Strukus
- · Replies 1 ·
What's the Resistance in a Circular Pan with a Metal Disk?
- kjintonic
- · Replies 1 ·
Solve Spring Oscillation: Find Max Speed & Kinetic Energy
- isaacsquared
- · Replies 3 ·
How Do You Solve Projectile Motion Problem #2?
- phys1618
- · Replies 1 ·
How Old is My Age? Solving an Introductory Question with Variables
- pikapika1
- · Replies 1 ·
Solving for Closest Approach: 2D Kinematics Help and Solutions
- Kudo Shinichi
- · Replies 1 ·
Frictional and Tensional Forces on an Inclined Plane
- parabolic
- · Replies 5 ·
Find equation of path of a point mass under influence of 2 central forces
- taureau20
- · Replies 3 ·
Electric field at the center of a square
- ally1h
- · Replies 3 ·
Kinematics. cannonball was dropped- how far from the wall does it hit ground?
- aurorabrv
- · Replies 1 ·
What Is the Acceleration of a Water Balloon Thrown Downward?
- phys1618
- · Replies 2 ·
Use either trigonometry or components to find displacement
- aurorabrv
- · Replies 1 ·
Inclined plane and normal reaction force
- robvba
- · Replies 4 ·
Projectile motion- acceleration due to gravity on the moon
- aurorabrv
- · Replies 3 ·
Basketball shot projectile motion calculation
- Maiia
- · Replies 1 ·
Calculating Rain Velocity in Different Reference Frames for a Traveling Car
- kornkidcrazy
- · Replies 3 ·
What Is the Charge on Earth Producing Its Electric Field?
- jrzygrl
- · Replies 2 ·
Mechanics Problem Involving Newton's Laws
- OpticalFreeze
- · Replies 1 ·
What is the question looking for?
- I_LuV_FiZiX
- · Replies 4 ·
Are Your Physics Problem Solutions on Forces and Motion Correct?
- musicfairy
- · Replies 1 ·
Maximum Height of Projectile Using Cons. of Energy
- akbro93704
- · Replies 1 ·
Car rolling down hill 2-D motion problem
- Maiia
- · Replies 7 ·
Calculating Charge in a Ring of Charge
- jaejoon89
- · Replies 3 ·
Earth's gravitational field strength
- D4b34r5
- · Replies 2 ·
Pick the statement which correctly describes the acceleration
- I_LuV_FiZiX
- · Replies 7 ·
Newton's Three Laws (moving a box)
- southernbelle
- · Replies 1 ·
How Do You Calculate the Weight on a Suspended Board in Static Equilibrium?
- akan
- · Replies 13 ·
Pendulem in an Accelerting Plane
- BrettL789123
- · Replies 1 ·
M1 Mass on Pulley: Calculate ms-mk
- BrettL789123
- · Replies 1 ·
Interference/Diffraction Shadows
- Aeighme
- · Replies 1 ·
How to Calculate Kinetic Energy Percentage in Non-Elastic Collision?
- kbeyer
- · Replies 2 ·
Critical Angle Prism: Find Theta with n=1.90
- Aeighme
- · Replies 1 ·
Determine the frequency of the resulting motion
- akan
- · Replies 5 ·
Static equilibrium of window cleaner
- brookbj
- · Replies 1 ·
How do you find threshold frequency? (given wavelength and KE of electrons)
- fizzicsdummy
- · Replies 1 ·
Projectile motion- height of building
- Maiia
- · Replies 6 ·
What Should Be the Banking Angle for a Curve Negotiated Without Friction?
- lpcampbe
- · Replies 1 ·
Projectile Motion: Calculating Time to Shoot a Flying Bird
- fishingspree2
- · Replies 2 ·
Simplifying:t \approx 0.34 secondsCalculating Hang Time for Vertical Jump
- mandaa123
- · Replies 4 ·
Find direction of initial velocity of nonrelativistic particle in B
- Quelsita
- · Replies 2 ·
What Is the Correct Slit Width for X-Ray Diffraction with a 10A Wavelength?
- Quelsita
- · Replies 3 ·
A quick projectile motion problem. Please help me Thanks
- Miss1nik2
- · Replies 1 ·
2-D motion: projectile motion of football
- Maiia
- · Replies 4 ·
Work Done by Horse in 11.8 min: 190904 N*m
- Trousers
- · Replies 5 ·
How Does a Compass React to a Current-Carrying Wire?
- demonhunter19
- · Replies 1 ·
Finding Thrust from aircraft, need rolling friction
- jheld
- · Replies 3 ·
Calc based physics spring problem
- isaacsquared
- · Replies 1 ·
Coulomb's Law (Finding the force due to two other charge, not only one)
- daimlerpogi
- · Replies 1 ·
How Do You Calculate the Launch Velocity Components in a Football Field Goal?
- Miss1nik2
- · Replies 3 ·
Current through parallel plate capacitor vibration sensor
- HappMatt
- · Replies 6 ·
What Angle of Incidence Causes Total Reflection of X-rays in Calcite?
- Quelsita
- · Replies 5 ·
How High Can a Salmon Jump if It Leaps at 2.5 Meters Per Second?
- mandaa123
- · Replies 2 ·
What Height Does a Ball Reach When Its Speed Halves?
- mandaa123
- · Replies 1 ·
Group and Phase velocity of wave packet
- Quelsita
- · Replies 4 ·
How can I find the velocity and acceleration of a particle in 2-dimensions?
- Filenes
- · Replies 2 ·
What is the tension in the suspended cord when masses are released?
- Ltcellis
- · Replies 4 ·
Projectile Motion: Calculating Initial Velocity for Grenade Throw in Action Film
- limekiwi
- · Replies 1 ·
Torsional Oscillations Question
- akan
- · Replies 4 ·
Applications of Newton's Laws of Motion
- pstfleur
- · Replies 2 ·
Why is the electric field infinite at the location of a charge?
- ayestaran1
- · Replies 12 ·
What is the Smallest Coefficient of Friction Between Crutches and Ground?
- Husker70
- · Replies 2 ·
Does the ball clear the net? Please help, thanks in advance?
- reverse
- · Replies 1 ·
Amplitude of sound wave in by 50%
- hemetite
- · Replies 1 ·
How Can You Calculate Jupiter's Radius Using Europa's Orbital Data?
- brookbj
- · Replies 1 ·
Finding the Net Direction and Speed of a Boat
- 964js7
- · Replies 8 ·
Parllel Plate Capacitors Connected Opposite
- Fizzicist
- · Replies 3 ·
Highest harmonic of a string within typical human's audible range
- hemetite
- · Replies 2 ·
Circular Motion of a 8.0cm CD: Finding Speed and Revolution Using Kinematics
- reverse
- · Replies 1 ·
Help Projectile Motion- Firing of a gun
- fewill
- · Replies 1 ·