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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How Does Acceleration Affect Velocity in 1D Motion?
- rudransh verma
- · Replies 21 ·
Find the equation of this magnetic field
- Istiak
- · Replies 6 ·
Find the energy which was released when the 'Death Star' was destroyed
- Istiak
- · Replies 6 ·
Work and kinetic energy comprehension question
- Lina
- · Replies 4 ·
Why does heat transfer use final minus initial instead of initial minus final?
- bluesteels
- · Replies 1 ·
Invariant mass and energy balance
- R3ap3r42
- · Replies 4 ·
How do you calculate free fall with equal masses?
- A dummy progression
- · Replies 15 ·
Find the total power developed in the circuit given the readout
- PhDeezNutz
- · Replies 13 ·
Is Your Reasoning on Track? Get Feedback and Graph Analysis!
- A dummy progression
- · Replies 7 ·
The velocity of a movable block that is penetrated by an arrow
- PrincessPeach
- · Replies 16 ·
Tension in a pulley system pulled at an angle
- erensatik
- · Replies 3 ·
Thermal Physics Problem -- Dropping a hot mass of iron into 20C water
- Woopa
- · Replies 4 ·
Integration of velocity to get displacement
- rudransh verma
- · Replies 1 ·
How can I calculate the speed of a π+ meson based on its decay distance?
- R3ap3r42
- · Replies 24 ·
Find second object's velocity in relativity
- Istiak
- · Replies 2 ·
Conservation of Momentum problem — Firing a cannonball
- Ineedhelpwithphysics
- · Replies 9 ·
Why isn't the scaling factor included when stating particle mass in eV?
- Jrs580
- · Replies 7 ·
Rocket motion with Lorentz transformations: find v/c, u/c, and return time
- R3ap3r42
- · Replies 35 ·
Why do we use area under the curve to find displacement in particle motion?
- rudransh verma
- · Replies 6 ·
Balloon and stone velocity: which solution is correct?
- rudransh verma
- · Replies 43 ·
Confusion about whether to use the specific heat of water or ice
- bluesteels
- · Replies 4 ·
How does the presence of a dielectric change the max V of a capacitor?
- Leo Liu
- · Replies 6 ·
A rolling ball, find distance traveled
- rebbe90
- · Replies 4 ·
Mean energy density and Poynting vector in EM waves
- lorenz0
- · Replies 1 ·
Finding angle bounds for two rods in equilibrium with friction
- gnits
- · Replies 6 ·
Hydrostatic force on suspended cylinder versus containers on ground
- ucody0911
- · Replies 22 ·
How Do You Calculate the Natural Angular Frequency of a Dual-Spring System?
- umzung
- · Replies 5 ·
How to use Kirchhoff's voltage law on this circuit?
- NoahCygnus
- · Replies 16 ·
Solving Physics Problem with Angles and Trigonometry
- Angetaire
- · Replies 4 ·
Calculating Force to Push Steel Rod Up 50 cm
- ucody0911
- · Replies 24 ·
Finding acceleration from position formula
- guyvsdcsniper
- · Replies 4 ·
Magnetic Surface Currents and the Interaction of Magnetic Fields with Matter
- lorenz0
- · Replies 2 ·
Finding the coefficients of a Resistance vs. Temp curve
- guyvsdcsniper
- · Replies 3 ·
Can Resistance Determine the Torque in a Solenoid Pendulum System?
- jore1
- · Replies 7 ·
Morin's mechanics problem 2.3 (motionless chain)
- Adgorn
- · Replies 2 ·
Halliday Resnick Krane Chapter 2 Problem 30: Juggling Five Balls
- vibha_ganji
- · Replies 3 ·
Maximize Range of Projectile Launched from Cliff
- DeltaForce
- · Replies 17 ·
Show that ##\int \frac{d\vec{a}}{d} = \frac{4}{3}\pi \vec{r}##
- happyparticle
- · Replies 21 ·
Kepler's Third Law vs Conservation of angular momentum
- ShaunPereira
- · Replies 8 ·
Potential due to a finite charged wire
- lorenz0
- · Replies 4 ·
Standing Waves in a tube closed at both ends
- physicslover2012
- · Replies 5 ·
Newton's law question involving force and acceleration
- Arsene11
- · Replies 4 ·
Maximum charge on a spherical capacitor
- lorenz0
- · Replies 4 ·
Weight of gold chain when dropped on a weighing scale
- ShaunPereira
- · Replies 12 ·
Find tangential velocity given radius and the coefficient of friction
- Send-Help
- · Replies 3 ·
Light incident on a sphere, focused at a distance ##2R##
- lorenz0
- · Replies 2 ·
Mass, acceleration and velocity
- rcetinkaya
- · Replies 3 ·
SOS -- Questions about mass, acceleration and velocity
- rcetinkaya
- · Replies 4 ·
Forces on a hinged rod held up by a string at an angle
- zimmer132123
- · Replies 14 ·
Torque exerted on rolling cylinder
- maxhell
- · Replies 6 ·
Maximizing forearm acceleration with elbow joint constraints
- greg_rack
- · Replies 24 ·
Are Orthogonal Vectors Proven by Derivative and Dot Product?
- guyvsdcsniper
- · Replies 4 ·
Circular Motion Problem -- Ball on a String Spinning in a Vertical Circle
- Al-Layth
- · Replies 2 ·
Bohr radius of Earth-Sun system
- songoku
- · Replies 5 ·
Forces that act on a physical pendulum
- Yossi33
- · Replies 7 ·
How High Does Cheese Rise on a Released Spring?
- Saif Ali Khan
- · Replies 1 ·
Distance moved in two different inertial frames
- Monsterboy
- · Replies 11 ·
Shift in position of plank when a man moves on it (Centre of mass)
- ShaunPereira
- · Replies 11 ·
How do I find the mass of a satellite from orbital speed?
- songoku
- · Replies 16 ·
Trouble understanding total mechanical energy and the second law of Newton
- studentsuff
- · Replies 2 ·
Finding the frequency of a string based on Mass and Tension
- SoundsofPhysics
- · Replies 1 ·
Spring block system on incline: work energy vs Newton's law discrepancy
- ShaunPereira
- · Replies 20 ·
Intensity of a laser beam at a certain distance
- lorenz0
- · Replies 13 ·
Why use 0.75A instead of 1.75A in Kirchhoff's law circuit analysis
- Eobardrush
- · Replies 7 ·
Is there an explanation for the unexpected increase in activity of Nuclide A?
- songoku
- · Replies 5 ·
Kinematic Equations in Projectile Motion (this approach is not working)
- GiantYoda
- · Replies 16 ·
Coulomb's force - magnitude of the electric force
- zachem62
- · Replies 11 ·
Potential difference between two points in an electric field
- NoahCygnus
- · Replies 1 ·
Calculating the velocity of a head-on impact between two suns
- ShaunPereira
- · Replies 6 ·
How Does Deriving V = dW/dq Explain Voltage in Circuit Theory?
- PhDeezNutz
- · Replies 7 ·
What happens to energy after a pendulum hits the rod at the bottom?
- VicGong
- · Replies 3 ·
Question on sound intensity and dB
- Krystal111
- · Replies 8 ·
Relationship between E and V in space
- vcsharp2003
- · Replies 27 ·
Distance between rocket and object
- songoku
- · Replies 30 ·
Does wind double a plane's speed on a roundtrip?
- brochesspro
- · Replies 26 ·
How does field fringing help satisfy boundary conditions?
- Shreya
- · Replies 6 ·
How does metal sphere determine the potential of the plane by symmetry?
- yucheng
- · Replies 15 ·
Single Loop Potential difference -- sign issue
- simphysics
- · Replies 8 ·
Find the unit vectors perpendicular to the given vectors
- brochesspro
- · Replies 20 ·
Perfectly inelastic collision of two moving and rotating disks
- mattlfang
- · Replies 9 ·
Question on Resolving Power of Diffraction Grating
- warhammer
- · Replies 3 ·
A bullet collides perfectly elastically with one end of a rod
- mattlfang
- · Replies 21 ·
Is the work done by friction on a moving car's wheel positive or negative?
- songoku
- · Replies 7 ·
How to prove that a force is conservative?
- dyn
- · Replies 40 ·
"Doubling up" effect when pulling a chain on a table
- Father_Ing
- · Replies 11 ·
Compton Effect, angle of deflection
- Kennedy111
- · Replies 1 ·
A.C. power supply voltage amplitude questions
- bluesteels
- · Replies 6 ·
Effect of temperature on vibrational frequency of a violin string
- ean514
- · Replies 5 ·
Recognizing Thermodynamic Scenarious (Work Done)
- PhDeezNutz
- · Replies 5 ·
Why is the angular momentum negative in a disk and stick collision?
- hhjjy
- · Replies 2 ·
How Does Lenz's Law Explain Magnetic Field Directions?
- bluesteels
- · Replies 1 ·
How Does Rocket Ejection Mass Affect Its Velocity in Space?
- Father_Ing
- · Replies 1 ·
Glancing Elastic Collision Questionnaire
- Mysterio
- · Replies 6 ·
What does 'dv and dx' mean in f = eta X A (dv/dx)?
- Indranil
- · Replies 6 ·
Modeling a kongming lantern (sky lantern)
- FranzDiCoccio
- · Replies 6 ·
Glancing elastic collision, and center of mass
- WrongMan
- · Replies 17 ·
Determine the velocity of a particle in mass spectrometry
- duchuy
- · Replies 3 ·
Checking an electromagnetic theory solution
- Usiia
- · Replies 43 ·
How Does the Direction of Normal Contact Force Affect Shelf Stability?
- songoku
- · Replies 7 ·