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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What is the distance R between centers of mass in a barbell-shaped object?
- Maurogaetano
- · Replies 9 ·
Velocity of a cart moving in the rain as a function of time
- Hamiltonian
- · Replies 4 ·
Thermodynamics Problem: Heat Engine Between Two Blocks
- Master1022
- · Replies 16 ·
Magnitude of an Impulse and Plotting it? (What am I doing?)
- cjedow
- · Replies 1 ·
Pulleys and a Belt, with friction and Torque
- Spencer25
- · Replies 6 ·
Dynamics problem involving an inclined plane and Friction
- Alencarina
- · Replies 1 ·
How is Torque Calculated in a Rotation Lab?
- Yoli123
- · Replies 2 ·
Kinetic energy transformed in a collision involving coalescing particles
- greg_rack
- · Replies 9 ·
Relativistic momentum through a magnetic field
- Physics reptile
- · Replies 1 ·
Average power used to stretch a spring
- greg_rack
- · Replies 10 ·
Inclination angle of a banked turn in a road for a maximum speed
- Andrei0408
- · Replies 6 ·
Why Is Angular Momentum Not Conserved When a Cylinder Moves on a Stopping Board?
- Mark128
- · Replies 3 ·
What is the correct formula I should use? (measuring g using a swinging mass)
- MJNZ1
- · Replies 14 ·
Non-uniform beam weight distribution
- greg_rack
- · Replies 2 ·
Hydrostatics: should I use P1A1 = P2A2 or P1 = P2?
- rbmartel
- · Replies 4 ·
Uniformly accelerated motion issue
- greg_rack
- · Replies 7 ·
Projectile motion -- throwing an object vertically
- hescot2
- · Replies 18 ·
Proper free-body diagram for a shaft experiencing multiple torques
- Qube
- · Replies 13 ·
The Impact of R5 on Req Calculation
- mabdeljaber
- · Replies 5 ·
Torque and Force question -- Multipe forces acting on an object
- shivam2571
- · Replies 5 ·
Doubt in plotting graph between small and large values
- Avanthica
- · Replies 8 ·
Help with this thermodynamics and entropy question please
- takelight2
- · Replies 7 ·
Why does pressure need to be constant in all directions to maintain equilibrium?
- anonymous99
- · Replies 8 ·
Need help with a Kirchhoff's Laws circuit problem
- TomK
- · Replies 6 ·
Why is the result different in Method 2 for the rotating rod experiment?
- Divya
- · Replies 11 ·
Understanding Standing Waves in Open Tubes
- WRS
- · Replies 1 ·
Electrostatics problem with charged particles accelerating
- Skrileq
- · Replies 1 ·
Explosion energy dissipation and Ek
- Maggie
- · Replies 25 ·
Find the linear charge density lambda and the radius of a charged semicircle
- Sonic98
- · Replies 4 ·
How can I get help with the ENGAA Questions Section 1?
- TomK
- · Replies 3 ·
Decceleration problem with 3 stages of motion
- oyster21
- · Replies 21 ·
Electron between two parallel plates
- Mike94
- · Replies 6 ·
Does a Well-Defined Entropy Exist for Non-Ideal Gases A and B?
- Adam564
- · Replies 1 ·
Specific Heat Capacity Derivation
- cwill53
- · Replies 4 ·
Average speed (or maybe average velocity) of an athlete
- mcastillo356
- · Replies 9 ·
How Is Angular Momentum Calculated Without Considering Gravity and Viscosity?
- Est120
- · Replies 3 ·
Direction of the Coriolis force
- John Mcrain
- · Replies 13 ·
Relativistic Kinematics: Distance of B When A Coincides with L
- Amrator
- · Replies 28 ·
Conservation of Mechanical Energy
- Travis Enigma
- · Replies 2 ·
Doubt related to the velocity of the center of mass
- Hamiltonian
- · Replies 7 ·
AP Physics Momentum, Impulse, Collisions, and Power
- pandamonium_
- · Replies 3 ·
Projectile Motion (not on Earth)
- randomphysicsguy123
- · Replies 11 ·
Mechanics; grade 12 Projectile motion
- ttt6683
- · Replies 4 ·
Quadratic Drag Force: Solving Differently
- tryingtolearn1
- · Replies 1 ·
Three positive point charges are located on a line (Coulomb's Law)
- Mike94
- · Replies 20 ·
Percentage increase in resistance to motion
- greg_rack
- · Replies 3 ·
Isotope decay via alpha and beta particle emissions
- greg_rack
- · Replies 1 ·
Rational motion combined with 2 springs
- Maggie
- · Replies 6 ·
Rotational dynamics and the conservation of energy
- wcjy
- · Replies 30 ·
Electrodynamics flux calculation question
- AHSAN MUJTABA
- · Replies 6 ·
Electrostatics potential calculation for a uniformly charged square
- AHSAN MUJTABA
- · Replies 10 ·
Depth to which the sphere is submerged
- brotherbobby
- · Replies 55 ·
How Do You Model a Collision and Determine G-Force?
- Aion96
- · Replies 4 ·
Heat Transfer: Effect of a Heat Fin
- Master1022
- · Replies 4 ·
Sending a sound wave of 1cm wavelength through a 0.1Pascal medium
- PhysicsKush
- · Replies 3 ·
Need help finding the launch angle of a ball
- abelmoore
- · Replies 1 ·
Maximum extension in a system with two blocks separated by a spring
- Hamiltonian
- · Replies 16 ·
Using the solid angle to simplify an integral when deriving Gauss' Law
- cwill53
- · Replies 2 ·
Determine the change in elevation of mercury in this manometer
- Bolter
- · Replies 17 ·
Conservation of Linear Momentum and Energy in a Two-Block System
- Hamiltonian
- · Replies 14 ·
2D Steady-state Temperature in a Circular Plate - Bessel Function
- Athenian
- · Replies 2 ·
How Does a Resistor Affect the Heating Time of Water?
- archaic
- · Replies 6 ·
What causes pressure in a fluid from beneath?
- anonymous99
- · Replies 4 ·
To find the magnitude of the resultant of forces around a triangle
- gnits
- · Replies 4 ·
Current leakage between the charged plates of a capacitor
- archaic
- · Replies 2 ·
Calculating this gauge pressure reading
- Bolter
- · Replies 5 ·
Determine the new differential reading in a manometer
- Bolter
- · Replies 12 ·
Position for maximum electric field between two wires
- PhysicsKush
- · Replies 10 ·
How Do You Calculate Race Car Acceleration and Power Output?
- oyster21
- · Replies 20 ·
Light refracting and reflecting in a drop of water to form a rainbow
- A13235378
- · Replies 5 ·
Understanding a Velocity-Time Graph
- PleaseAnswerOnegai
- · Replies 14 ·
Finding specific weight of unknown fluid in a manometer
- Bolter
- · Replies 4 ·
Force in the legs of a hexagonal table
- guv
- · Replies 2 ·
Calculate the manometer reading
- Bolter
- · Replies 5 ·
Vector Line Integral Direction of Limits
- Master1022
- · Replies 3 ·
##\int_0^1 F_x(x,0)dx + \int_0^1 F_y(1,y)dy##
- happyparticle
- · Replies 7 ·
Linear motion, motorcyclist braking time
- rbh
- · Replies 13 ·
Thermodynamics question: density, linear expansion and temperature
- Patricia Reid
- · Replies 11 ·
To find the ratio of forces around a right triangle
- gnits
- · Replies 2 ·
Gravitational Potential & Gravitational Potential Energy
- Jimmy87
- · Replies 2 ·
The net magnetic field at the center
- PhysicsTest
- · Replies 12 ·
A bouncing ball hits a blob of putty on the rebound upward
- Arsen1451
- · Replies 1 ·
Finding the resultant force using a vector polygon diagram
- Bolter
- · Replies 2 ·
Parameters and the nature of electromagnetic waves
- greg_rack
- · Replies 5 ·
How Does Deformation Affect the Net Force Between Two Masses?
- anonymous99
- · Replies 6 ·
Magnetic field of a straight current-carrying conductor
- PhysicsTest
- · Replies 3 ·
Analyzing Velocity and Force of a Chain in Motion
- NTesla
- · Replies 15 ·
Need to find forces in S1 and S2
- goodOrBad
- · Replies 5 ·
Finding the Monopole and Multipole Moments of the Electric Potential
- Athenian
- · Replies 1 ·
Maximizing Efficiency: Solving Problems with Ease
- robotman
- · Replies 2 ·
Potential Energy associated with a Variable Force
- robotman
- · Replies 2 ·
How can the weight force of a rigid body be applied in a moments equation?
- greg_rack
- · Replies 7 ·
Solve Rocket Problem with Step-by-Step Guide | Imaginary Number Solution
- takelight2
- · Replies 4 ·
Period of a Pendulum on the Moon
- imccnj
- · Replies 7 ·
Efficiency of a hydroelectric power station
- greg_rack
- · Replies 6 ·
What equations relate to the symmetry of equipotential lines?
- Mimyo
- · Replies 3 ·
Instantaneous Acceleration for Uniform Circular Motion
- Error
- · Replies 1 ·
Instantaneous acceleration from coordinates?
- jalessandrom
- · Replies 5 ·
Does This Free-Body Diagram for a Forklift Make Sense?
- mcastillo356
- · Replies 38 ·
Ideal gas: two tanks connected by a cylinder
- A13235378
- · Replies 5 ·