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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Variation in mass and binding energy in nuclear reactions
- Krushnaraj Pandya
- · Replies 5 ·
Finding the Coefficient of Friction in a Spring-Block Incline System
- Puneet Tanwar
- · Replies 2 ·
Resonant Lengths in open air column question
- BadDriver
- · Replies 6 ·
Adjustment of Significant Figures
- Zahid Iftikhar
- · Replies 11 ·
Mast in equilibrium with two rope tensions and unknown angles
- parsesnip
- · Replies 7 ·
Nuclear Stability: A Comparison of Binding Energy and Packing Fraction
- Krushnaraj Pandya
- · Replies 3 ·
Radioactive Decay Rates and the Relationship between Decay Constants
- Krushnaraj Pandya
- · Replies 4 ·
Calculating Binding Energy for C13 Neutron Removal
- Krushnaraj Pandya
- · Replies 16 ·
Thevenin equivalent (symbolic circuit calculation)
- Casper Hansen
- · Replies 8 ·
Calculate the given surface integral [Mathematical physics]
- Mulz
- · Replies 5 ·
Creating Mohr's strain circle from a strain rosette
- ridiculoid
- · Replies 2 ·
Angular velocity of rolling ball on rotating platform
- Clara Chung
- · Replies 17 ·
Most likely location of a particle versus expected value of
- Prometheus18
- · Replies 4 ·
Probability of decay of a nucleus
- Krushnaraj Pandya
- · Replies 8 ·
Change in the amplitude of a damped spring block oscillator
- CrazyNeutrino
- · Replies 1 ·
Finding velocity as a function of distance from v(t)
- Marcell
- · Replies 15 ·
Stopping distance and static friction
- sp3sp2sp
- · Replies 1 ·
Box on a conveyor belt (friction)
- sp3sp2sp
- · Replies 6 ·
Figuring out when to use the two different voltage equations
- cookiemnstr510
- · Replies 2 ·
What is the Correct Acceleration of the Rocket During Its Launch Phase?
- TheKracken5
- · Replies 3 ·
Magnetic field due to spiral coil
- Krushnaraj Pandya
- · Replies 22 ·
In how many seconds will the n-th wagon pass next to me?
- HAF
- · Replies 39 ·
Charged particle entering magnetic field at angle alpha
- Abhimessi10
- · Replies 11 ·
Electron brought to rest by the E-field, potential difference question
- cookiemnstr510510
- · Replies 4 ·
Why doesn't the tension equation include the x-components of rope force?
- sp3sp2sp
- · Replies 7 ·
Electric Potential Equations: Understanding and Applying in Non-Uniform Fields
- cookiemnstr510510
- · Replies 1 ·
What are the equations of these free fall/drag graphs?
- Dowon Kim
- · Replies 2 ·
Point charge at the center af a cube
- Mandaz
- · Replies 5 ·
How Do Impulse and Work Relate in Rocket Dynamics Homework Problems?
- Persson
- · Replies 2 ·
Maxwell's wheel and the conservation of energy
- archaic
- · Replies 8 ·
Potential energy and work relationship
- cookiemnstr510510
- · Replies 6 ·
Speed of a proton through potential difference
- cookiemnstr510510
- · Replies 6 ·
Difference between electric potential energy, potential difference, and potential
- cookiemnstr510510
- · Replies 2 ·
Finding the acceleration of an object on a parabolic ramp
- Jpyhsics
- · Replies 24 ·
Why Does Covering One End of a Pipe Change the Pitch of the Sound Produced?
- john-b
- · Replies 3 ·
Motion problem: motorist's braking time including reaction time
- chemie726283
- · Replies 1 ·
Physics rifle problem -- Forces and acceleration of the bullet
- chemie726283
- · Replies 1 ·
Was the Driver Speeding Before the Crash?
- Logan Batson
- · Replies 9 ·
Understanding Force Components in a Hanging Box System
- StudentElias
- · Replies 12 ·
Finding effective spring constants
- shepherd882
- · Replies 2 ·
Raindrop free falling -- calculate the velocity and time
- chemie726283
- · Replies 1 ·
Projectile Motion: initial velocity problem
- msun5040
- · Replies 1 ·
Doubling the time spent in the air by a thrown object
- marksyncm
- · Replies 3 ·
Amperian loop-conceptual question
- Krushnaraj Pandya
- · Replies 10 ·
Car Rounding Curve: Acceleration Calculation with C=2piR
- Austin Gibson
- · Replies 5 ·
What is the total torque of that system?
- Sameh soliman
- · Replies 28 ·
Finding the acceleration of a block of ice on a ramp
- Jpyhsics
- · Replies 25 ·
How do we find the uncertainty of v in the kinematics eqn?
- minamikaze
- · Replies 13 ·
How Do You Calculate Centripetal Acceleration in a Blood Centrifuge?
- Jpyhsics
- · Replies 8 ·
How Far Can a Greased Watermelon Be Pulled Down an Inclined Plane?
- Jpyhsics
- · Replies 5 ·
Force on ion at center of square with four charged ions
- IITSRII
- · Replies 14 ·
Calculating the work done from an equation for variable force
- giveortake
- · Replies 2 ·
Deriving equation 7.27 from the orbit equation
- Clara Chung
- · Replies 3 ·
Airplane's motion relative to the ground involving wind speed
- sp3sp2sp
- · Replies 5 ·
Lowering a climber with the belay rope routed through a pulley at an angle
- Jpyhsics
- · Replies 12 ·
Attenuation Coefficient in an optical fibre
- says
- · Replies 21 ·
Conducting Sphere With Cavity E-field / Gauss' law
- cookiemnstr510510
- · Replies 7 ·
A plate carries a charge of -5.2 μC
- isukatphysics69
- · Replies 6 ·
When Will We Arrive? Calculating Time Differences in Special Relativity
- Robin64
- · Replies 3 ·
Electric field from spherically symmetric charge distributio
- cookiemnstr510510
- · Replies 1 ·
Electric field sphere calculations with a hollow cavity using Gauss' law
- cookiemnstr510510
- · Replies 21 ·
How to show speed is equal to group velocity?
- Yoki
- · Replies 1 ·
What does critical mean in reflected and refracted rays?
- Sabalaba
- · Replies 2 ·
When the spring is maximally extended, find v_1f
- JessicaHelena
- · Replies 2 ·
Angular momentum relative to the origin
- JessicaHelena
- · Replies 3 ·
Understanding meaning of inertial reference frames
- ComputerForests000
- · Replies 2 ·
What is the solution for the integral of 2x?
- Decadohedron
- · Replies 7 ·
Calculating Center of Mass in NH3 Molecule
- JessicaHelena
- · Replies 4 ·
Finding the time it takes for two stacked blocks to travel
- alexi_b
- · Replies 18 ·
How to get R= 2 ( square root ) h1h2
- DLeuPel
- · Replies 14 ·
Two decelerating trains on a collision course
- marksyncm
- · Replies 2 ·
Find when the acceleration is 0
- alexi_b
- · Replies 15 ·
Elastic collision in one of the particles' frame
- Malamala
- · Replies 2 ·
How to determine the change of resistance from I-V graph?
- morrw1ndy
- · Replies 9 ·
Unreasonable answer for acceleration of an electron in field
- yungquark
- · Replies 3 ·
Fresnel Equations and Snell's Law
- says
- · Replies 13 ·
How to know 'the displacement of a particle is 'negative'?
- Medicalboy
- · Replies 6 ·
Calculation of no. of spectral lines for group of similar atoms
- Prabhu1
- · Replies 16 ·
Finding when acceleration is zero
- alexi_b
- · Replies 1 ·
How far apart are the astronaut and satellite after 8.67 minutes?
- alexi_b
- · Replies 10 ·
Finding the angle in which the resultant force points
- alexi_b
- · Replies 8 ·
Does Instantaneous Velocity Account for Launch Height in Kinematics?
- starstruck_
- · Replies 5 ·
Compton Scattering and Recoil Velocity
- doggydan42
- · Replies 3 ·
Integrating quadratic drag force equation to solve for velocity
- Ashley1nOnly
- · Replies 69 ·
Finding Force Needed for 200 km/hr
- Ashley1nOnly
- · Replies 2 ·
Electric field using Gauss' Law
- cookiemnstr510510
- · Replies 3 ·
Astronaut returning to spacecraft by throwing phaser
- RRmy0440
- · Replies 11 ·
How do you find the acceleration needed to clear a jump?
- physicstryhard
- · Replies 10 ·
Deriving the bolometric magnitude constant Cbol
- Xalkias
- · Replies 4 ·
What is the thickness of the drop if its radius is r?
- Klaus von Faust
- · Replies 1 ·
Surface tension trivial problem
- Klaus von Faust
- · Replies 3 ·
How to fix this electric circuit
- orpheus
- · Replies 9 ·
Ball released at top of vertical circle hitting the ground
- Jacquelyn
- · Replies 14 ·
How to figure out the velocity and direction of the wind
- orpheus
- · Replies 7 ·
Find min/max accel. for block to stay on wedge (static fric)
- Lost1ne
- · Replies 1 ·
Force needed to keep 50kg child on 5° sled from sliding
- DracoMalfoy
- · Replies 8 ·
Two loudspeakers emit waves, find wavelength
- Moolisa
- · Replies 1 ·
With the info given, what are 3 ways to calculate wavelength?
- newguy_13
- · Replies 1 ·
Finding the speed's dependence on angle θ
- Rain10399
- · Replies 15 ·
Displacement -0.25i + 14.7j from Origin: Final Displacement
- Austin Gibson
- · Replies 4 ·