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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Simple harmonic motion of two pendulums
- Abhishekdas
- · Replies 7 ·
Homebrew Physics Problem: Projectile Motion with Camera Observation
- mettw
- · Replies 3 ·
Work of line integrals in vector field (2x²-3y, 4xy, 3x²z)
- Bibhatsu
- · Replies 6 ·
Bringing 3 Charges from infinity into a triangle
- lilpoopoo
- · Replies 1 ·
Momentum - two cars crashing at an angle
- XxphysicsxX
- · Replies 2 ·
Finding the force and angle for 1 mm spring compression
- Pellefant
- · Replies 12 ·
How Does Submarine Buoyancy Affect Its Movement and Stability?
- sirclash
- · Replies 2 ·
Electric Forces and Fields questions,
- WGman
- · Replies 3 ·
Can you create gravity in space? Also a question on space debris
- flyingpig
- · Replies 8 ·
What Are the Reaction Forces in These Physics Diagrams?
- Knight226
- · Replies 1 ·
Angular Velocity On Pulley After Variable Force
- Jshumate
- · Replies 3 ·
Average velocity with a relay race
- kx250f341
- · Replies 4 ·
Calculating work for a weightlifter.
- tbarnet7
- · Replies 3 ·
How Can a Cart Maintain Constant Velocity Down a Slope?
- phy124
- · Replies 8 ·
How to Calculate Equivalent Resistance in a Series-Parallel Circuit
- arl146
- · Replies 13 ·
Dart projectile motion with height offset above board
- sun2k4
- · Replies 3 ·
Projectile motion: time to peak, max height, and range at 30°
- ProPM
- · Replies 1 ·
Tension and acceleration, one floating block, one sliding
- jstep
- · Replies 1 ·
Child walking across frozen pond (friction involved)
- aeromat
- · Replies 2 ·
What is the mass of the black hole orbiting the Milky Way?
- aeromat
- · Replies 16 ·
Finding R2 in a circuit with known power and resistance values
- imagemania
- · Replies 3 ·
Refraction, Diffraction, or Interference?
- Menagerie4
- · Replies 1 ·
RLC Circuit Find inductance and capacitance
- dfs730
- · Replies 11 ·
AC Power RC series circuit low pass filter, find frequency given gain.
- dfs730
- · Replies 1 ·
Potential at a junction in an infinite 2D capacitor grid
- GrantB
- · Replies 2 ·
Speed of three identical charges released from equilateral triangle corners
- lilpoopoo
- · Replies 8 ·
Minimum speed to clear a gap between two ramps
- Applesauce2
- · Replies 2 ·
What Is the Maximum Acceleration of an Empire State Building Elevator?
- pdonovan
- · Replies 2 ·
As the ball roles down the hill
- madmarwick
- · Replies 4 ·
What is the minimum work needed to cool an object using a carnot refrigerator?
- Runaway
- · Replies 4 ·
How Do Classical and Modern Physics View Gravity?
- abejackson
- · Replies 3 ·
Can N < mg in road banking calculations?
- mike168
- · Replies 2 ·
Velocity distribution functions, find rms velocity
- fahmed93
- · Replies 3 ·
What is the Induced Current in a Time-Varying Magnetic Field?
- Havoc0040
- · Replies 1 ·
How Does Switching Impact Current Flow in an RL Circuit?
- Havoc0040
- · Replies 3 ·
Gain curve roll-off for 741 op-amp in dB per octave
- maherelharake
- · Replies 13 ·
Capacitor parallel circuit lab: correct answer from incorrect method
- flyingpig
- · Replies 30 ·
Find Thevenin Equiv. at a-b in Circuit Below
- VinnyCee
- · Replies 4 ·
Bullet shot underwater where do the bubbles come from?
- ExNihilo
- · Replies 10 ·
Thermometers- calculate the centigrade temperature
- Scarlet_pat
- · Replies 17 ·
Finding tension in pulley systems with 100 kg weight
- bradycat
- · Replies 3 ·
What is the explanation for the varying weight readings in an elevator going up?
- zellster87
- · Replies 4 ·
Mean free path and collision cross section
- Etox
- · Replies 3 ·
Equivalent Spring Constant in Series and Parallel Configurations
- Abhishekdas
- · Replies 15 ·
Finding Centre of Mass of a Chain
- Grand
- · Replies 5 ·
Shape of Minimum Moment of Inertia for Fixed Volume: How to Prove?
- Grand
- · Replies 2 ·
Why Does a Passenger Continue Moving Forward When a Car Stops Suddenly?
- quark001
- · Replies 11 ·
Electrostatic force between a charged ring and charged rod.
- qpham26
- · Replies 1 ·
Finding Derivatives for Bicycle Trajectory Plot in 2D
- twowheelsbg
- · Replies 2 ·
Calculating Work on a Slope with Friction Coefficient of 0.2
- fsxadder
- · Replies 9 ·
Atwood machine rope tension problem
- Freeq
- · Replies 8 ·
Amusement park ride rotating about y.axis
- aeromat
- · Replies 6 ·
Trebuchet Energy Conservation Problem Solution Explanation
- RCB
- · Replies 15 ·
Average velocity problem~From Jay Orear book.
- Biggy_G
- · Replies 5 ·
The field just outside a metal ball
- Hooke's Law
- · Replies 1 ·
How Do You Calculate Induced Current in a Varying Magnetic Field?
- Havoc0040
- · Replies 2 ·
Projectile trajectory - Trebuchet
- Ruddie
- · Replies 1 ·
20 kg block collides and sticks to 5 kg mass on spring
- loganblacke
- · Replies 4 ·
Calculating electric field at a certain point in space
- tobywashere
- · Replies 3 ·
Calculating Work Done by Gravitational Force: Undergrad Homework Help
- janthony
- · Replies 3 ·
Finding the force balancing a weight
- jsmith613
- · Replies 6 ·
Two capacitors in series: charge and voltage with 60 V battery
- Linus Pauling
- · Replies 11 ·
Time period of Mass attached to 3 springs
- Smarty7
- · Replies 4 ·
Solve Latent Heat Problem: Mass of Injected Steam
- dolerka
- · Replies 1 ·
Carnot cycles in thermodynamics
- ndavis
- · Replies 1 ·
Problem with relativistic doppler?
- Piyu
- · Replies 3 ·
What are the Dynamics of Friction in a Mass on a Level Surface?
- dwalker19
- · Replies 1 ·
Finding Work and Power in a Traffic Junction
- herbgriffin
- · Replies 1 ·
Why different numbers of resonance modes at 500, 700, and 1000 Hz in a 1 m closed pipe
- helpmeplz!
- · Replies 1 ·
How Do Point Charges Affect Force on a Charge Along the X-axis?
- wingit132
- · Replies 1 ·
How can I solve this basic velocity problem involving a thrown ball?
- dwalker19
- · Replies 1 ·
Does this even make sense? Measuring voltage of a capacitor
- flyingpig
- · Replies 42 ·
Acceleration of 20 kg and 30 kg blocks on inclined pulley system
- metallica007
- · Replies 1 ·
Calculating Coefficient of Friction for a Coin on a Turntable
- atmega-ist
- · Replies 3 ·
How Do You Calculate Forces on a Box Pulled at an Angle?
- aeromat
- · Replies 12 ·
What does this mean? I don't understand separated again
- flyingpig
- · Replies 13 ·
Static friction force on an 85 kg object with coefficient 0.30
- chawki
- · Replies 4 ·
Why don't equal and opposite forces cancel in Newton's third law?
- zeo2396
- · Replies 3 ·
How Fast is the Shoe Moving Before It Hits the Spring?
- fernancb
- · Replies 1 ·
Is Gravity Not a Force in General Relativity?
- cary5
- · Replies 8 ·
Can voltage appear out of the blue?
- flyingpig
- · Replies 10 ·
Velocity-time diagram for a go kart coasting up and down a hill
- davie08
- · Replies 9 ·
Rocket speed without spring attachment using work-energy theorem
- turtledove
- · Replies 4 ·
What is the distance between the astronaut and the satellite after 1.0 min?
- Patdon10
- · Replies 2 ·
Fusion Reaction of Hydrogen and Deuterium into Helium
- ankitgu
- · Replies 1 ·
A Horse Pulls a Barge in a River; What is the force of the water on the Barge?
- emmy
- · Replies 15 ·
Two capacitors connected in parallel and series
- gmmstr827
- · Replies 12 ·
Average velocity for car traveling east then northeast
- kx250f341
- · Replies 3 ·
Deriving First Law of Thermo Equations
- mortalapeman
- · Replies 3 ·
What is the Uncertainty in the Wavelength of Emitted Photon?
- erok81
- · Replies 5 ·
Problem on work done in thermodynamics
- duntpwnme
- · Replies 1 ·
Velocity and frequency of standing waves, number of nodes
- maiamorbific
- · Replies 1 ·
What is the Magnitude of Total Acceleration at Point A?
- smashbrohamme
- · Replies 1 ·
How Is Capacitance Calculated in a Cloud-to-Ground Model?
- Badrakhandama
- · Replies 2 ·
Potential of a point from charged rod.
- Piyu
- · Replies 2 ·
Finding launch angle for projectile to hit target 2.5 m away
- Help1212
- · Replies 5 ·
Work to move charge to infinity problem
- awertag
- · Replies 12 ·
Charge on 4 capacitors in parallel then series
- neshepard
- · Replies 3 ·
Work to move charge to infinity?
- awertag
- · Replies 2 ·
Calculating Average Power LCR series circuit
- steejk
- · Replies 4 ·