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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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 ·
Find the Y component of Electric field at a point
- isukatphysics69
- · Replies 35 ·
Decay length of the evanescent wave
- says
- · Replies 2 ·
Elastic potential energy (spring) problem
- newguy_13
- · Replies 3 ·
Calculating Quasar Variability Using CCD Camera and Magnitude Comparison
- StillLearningToronto
- · Replies 4 ·
"Uncertainity Product for Particle in 1-D Box
- Sushmita
- · Replies 5 ·
Finding Time and Vf: Car chase problem
- Benny98
- · Replies 3 ·
How to Calculate the Bird's Net Displacement Using Vector Addition?
- ComputerForests000
- · Replies 3 ·
Why does cyclist B profit most from slipstream, not C?
- Physicsterian
- · Replies 88 ·
Finding displacement after two walks with cosine law
- Jeremy Mercier
- · Replies 1 ·
Is the least count constant for Vernier scale or variables?
- Medicalboy
- · Replies 3 ·
Ball striking rod end: angular velocity after collision
- Mohammeddev
- · Replies 2 ·
What is the height of a ball after being in the air for T/4 seconds?
- robax25
- · Replies 7 ·
How Far Will the Glasses Land from the Stopped Bicycle?
- Jpyhsics
- · Replies 2 ·
Calculating the relevant variables for a rotating habitat
- DET
- · Replies 2 ·
How Do You Calculate Instantaneous Velocity at a Midpoint in Particle Motion?
- fight_club_alum
- · Replies 7 ·
The use and meaning of the three beginning physics equations
- Jaq202
- · Replies 6 ·
Find electric field a distance P from a charged rod
- isukatphysics69
- · Replies 7 ·
Applying a force in a wheel bicycle
- Guillem_dlc
- · Replies 2 ·
Electric field magnitude and direction from three point charges
- isukatphysics69
- · Replies 23 ·
Find the range of acceleration so that the drums won't fall
- QuantumRose
- · Replies 4 ·
How do I determine the force on a object moving on a curve?
- js430
- · Replies 3 ·
Determine the net charge of sphere C
- isukatphysics69
- · Replies 2 ·
If given A,B,C, Find constants x,y |xA +yB=C
- astroman707
- · Replies 1 ·
What angle will give the object the greatest range?
- astroman707
- · Replies 3 ·
Pressure in a closed pot with water and air heated to 100°C
- iamnotsmart
- · Replies 24 ·
Do a tractor and Tesla braking on a mountain road collide?
- anonymous123321
- · Replies 1 ·
Two suspended charged particles, find the angle from vertical.
- Bobbo Snap
- · Replies 6 ·
Dynamic reaction versus Coriolis acceleration of the disk
- MPavsic
- · Replies 1 ·
How Is Electric Flux Calculated for a Rectangle in an Electric Field?
- cookiemnstr510510
- · Replies 5 ·
Projectile motion with only distance, an angle and a ratio
- Julie Yum
- · Replies 22 ·
Propagation of Error and Relative Error
- GoCubs12
- · Replies 10 ·
Charge distribution on concentric spheres
- Abhimessi10
- · Replies 17 ·
Finding Vector Angle using cosine law
- alexi_b
- · Replies 13 ·
Simple Harmonic Oscillator with Boundary Conditions
- blizzardof96
- · Replies 10 ·
Which block will strike first? Left or right?
- Qmechanic18
- · Replies 3 ·
Calculate the relative angular velocity
- Aamon
- · Replies 2 ·
Rotational Momentum: Calculating Angular Speed After Cockroach Stops
- JessicaHelena
- · Replies 2 ·
Interference Fringes in a Diffraction envelope
- Yoki
- · Replies 5 ·
Consistency of Faraday's Law and Electric Field Equation in Optics
- Blue Kangaroo
- · Replies 2 ·
Charge entering into the field between capacitor plates
- Abhimessi10
- · Replies 9 ·
What is the speed of an object with a momentum of <-1,-2,3>?
- Liam Corbin
- · Replies 3 ·
Fresnel equation and Snell's law
- says
- · Replies 7 ·
Map question involving vectors (find the angle)
- alexi_b
- · Replies 13 ·
The mass of air in the pressurised air tank
- Gregs6799
- · Replies 31 ·
Two blocks on a plane connected with a Rod
- Navin
- · Replies 6 ·
Can More Readings Reduce Fractional Error in Measurement?
- Angela Liang
- · Replies 2 ·
What’s the relation between activity and half-life
- Angela Liang
- · Replies 2 ·
Model Rocket Launch: Maximum Height, Time, and Duration Calculations
- Zacharrry
- · Replies 1 ·
Kinematics Problem: Train braking and blocking an intersection
- Zacharrry
- · Replies 1 ·
Electric field as a function of time
- jasonchiang97
- · Replies 3 ·
Finding drop height when object travels 1/4 total distance in last second
- spacey__
- · Replies 12 ·
Relationship between x and y components of E
- jasonchiang97
- · Replies 12 ·
How Does Inserting Different Dielectric Materials Affect Capacitor Performance?
- Abhimessi10
- · Replies 9 ·
Amount of water spilled when the temperature is changed
- Phys12
- · Replies 9 ·
Speed of ball dropped from building after falling 2d
- Peter Groppino
- · Replies 6 ·
Trying to get an average speed of 60 MPH
- opus
- · Replies 8 ·
Graph of Position Seems to be Wrong
- GoCubs12
- · Replies 6 ·
River question (looking for angles and headings)
- alexi_b
- · Replies 8 ·
Solving for Temp Change of Epoxy Frames for Lenses Insertion
- KristinaMr
- · Replies 4 ·
Problem in the C.G. and torque equilibrium
- Dandi Froind
- · Replies 12 ·
Basic physics units problems involving the Ideal Gas Law
- jamiebean
- · Replies 5 ·
Which circuit shows the correct connection and values?
- jaximus
- · Replies 4 ·
Radial Acceleration on a string
- alexi_b
- · Replies 4 ·
The speed of a metal wire on two rails with a magnetic field
- knowone
- · Replies 8 ·
Finding the angle between equal-magnitude vectors given ratio of sum to difference
- alexi_b
- · Replies 3 ·
Photo-current and Intensity of light
- MeAndMyLucidLife
- · Replies 10 ·
Which graphs represent different types of current flow?
- jaximus
- · Replies 4 ·
What is the equation for constructive interference in thin film interference?
- fedecolo
- · Replies 3 ·
Dimensional Analysis of an oscillation
- Zack K
- · Replies 3 ·
Equilibrium conditions for a pulley system with three weights
- Physicsterian
- · Replies 8 ·
Energy conservation when particle orbits rotating circle
- Muthumanimaran
- · Replies 6 ·
Max angle of deflection in a relativistic elastic collision
- redoopi
- · Replies 15 ·
Minimum Acceleration of an ambulance
- Austin Gibson
- · Replies 7 ·
Determining Speed given Horizontal and Vertical Distances
- Accolade
- · Replies 1 ·
Using a CCD camera to solve physics problems
- StillLearningToronto
- · Replies 3 ·
Problem in understaning potential energy
- Vatsal Goyal
- · Replies 9 ·
Deceleration of a squirrel versus a WW2 airman
- HunterB
- · Replies 8 ·
[Mathematical physics] - Integral problem
- Mulz
- · Replies 7 ·
Calculating the Maximum Kinetic Energy of pions
- Kashif Iqbal
- · Replies 1 ·
What is the correct tension equation for a pendulum at rest?
- Pochen Liu
- · Replies 2 ·
Finding the Accelation Of A Body In Presence Of Frictions
- Navin
- · Replies 10 ·
What is the Index of Refraction of the Liquid in Thin Film Interference?
- rose427
- · Replies 4 ·
Mathematica recursion limit error plotting electric field
- Ashley1nOnly
- · Replies 2 ·
Finding where an electron would be in equilibrium
- Abbie12998
- · Replies 4 ·
Distance traveled with linearly increasing kinetic energy
- FutureOption
- · Replies 19 ·
Distance traveled (DeltaD) and acceleration
- DracoMalfoy
- · Replies 3 ·