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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Would electric field exist if there were only one type of charge?
- navneet9431
- · Replies 7 ·
Center of gravity and over-hanging blocks
- brotherbobby
- · Replies 13 ·
How Does Earth Maintain Its Angular Momentum After the Sun Disappears?
- Benjamin_harsh
- · Replies 7 ·
What do the symbols in the gas equation represent?
- ArcHorizon
- · Replies 2 ·
Calculations using the Ideal Gas Law
- ArcHorizon
- · Replies 2 ·
What is Absolute Pressure and How is it Related to Gauge Pressure in a Pool?
- NP04
- · Replies 2 ·
Angular and orbital speed at perihelion
- pobro44
- · Replies 3 ·
Working out the kinetic energy of a body due to a gravitational field
- etotheipi
- · Replies 3 ·
Taking the components of a system containing multiple vectors
- Hijaz Aslam
- · Replies 31 ·
STATICS – Pushing a ball over a curb
- brotherbobby
- · Replies 6 ·
What are these two: ##L_{i}## & ##L_{f}##?
- Benjamin_harsh
- · Replies 14 ·
How Does Angular Momentum Remain Conserved in a Merry-Go-Round System?
- Benjamin_harsh
- · Replies 8 ·
Deriving the magnitude range of the force F for which van does not tip over
- anmsstu
- · Replies 2 ·
Electric Field for Charge Distributions
- Jkalirai
- · Replies 1 ·
Conditions needed for magnetic force on a conductor
- Tane
- · Replies 2 ·
Tension in Rope: Force, Acceleration & Intuition
- sumitsumit
- · Replies 10 ·
Charge on plates in Millikan's Experiment
- Zahid Iftikhar
- · Replies 5 ·
Finding the magnification of a ball lens
- DharshanT
- · Replies 4 ·
Solving Dielectric Problem: Electric Field & Charge Density
- rofldude188
- · Replies 2 ·
How Do You Calculate Force with Mass, Height, and Distance?
- twadd
- · Replies 2 ·
On the motion of a particle on the inner surface of a sphere
- gnits
- · Replies 2 ·
Melting of substance with -ve slope for fusion curve
- Parzeevahl
- · Replies 1 ·
Thin Lenses Problem: Solving for $q=d-p$
- Archimedess
- · Replies 1 ·
Need formulas for the dis/charge of batteries
- Abhinavpsingh
- · Replies 6 ·
Electric Circuts (Voltage, Ohms, Amps)
- Kmcquiggan
- · Replies 13 ·
How is the coefficient of restitution zero for this problem?
- Benjamin_harsh
- · Replies 4 ·
Velocity after t seconds with a time varying Force
- Physics lover
- · Replies 5 ·
How to find the wavelength of the sound of the tuning fork?
- Helly123
- · Replies 15 ·
Determining the optimal resistance of a variable resistor
- xAly
- · Replies 1 ·
Magnitude of the Magnetic Field near a Circuit Inclined at an Angle
- Mark Zhu
- · Replies 10 ·
Carbon-14 Dating: Where to Begin?
- Kmcquiggan
- · Replies 17 ·
Moment of Inertia: Calculation Method
- Benjamin_harsh
- · Replies 3 ·
Moving Electrons in a Uniform Magnetic Field
- Jkalirai
- · Replies 4 ·
Calculating the Displacement (Having Constant Acceleration)
- epuen23
- · Replies 4 ·
Centre of gravity shifted to what position?
- Benjamin_harsh
- · Replies 8 ·
Why Does the Roller Coaster's Normal Force Exceed Gravity at the Loop's Bottom?
- Jaccobtw
- · Replies 7 ·
Inclined Plane, Centripetal motion: Find the Velocity that suits the Turn
- Jaccobtw
- · Replies 14 ·
In which circumstances is work done?
- mehmet
- · Replies 3 ·
Bernoulli's Principle -- correct derivation
- Wisemetrics
- · Replies 2 ·
Difference between Waveguides and Resonators
- CGandC
- · Replies 5 ·
Determining the Moment of Inertia about an angle θ to the x axis
- pranjal verma
- · Replies 2 ·
Spring Problem On inclined plane without numbers, only variables
- Jaccobtw
- · Replies 1 ·
Spring Car, Acceleration Problem: Find Spring Constant
- Jaccobtw
- · Replies 1 ·
How Does Spring Force Affect Net Force in Physics?
- Jaccobtw
- · Replies 3 ·
Two carts connected with a spring -- working with forces and acceleration
- Jaccobtw
- · Replies 14 ·
A smooth massless wedge is pushed by a horizontal Force P....
- Shivam
- · Replies 17 ·
Find the EMF generated by a guitar string in the pickup coils
- b1llso
- · Replies 2 ·
Projectile motion over an inclined plane
- MattDutra123
- · Replies 1 ·
Masses sliding on a smooth wedge
- Karol
- · Replies 31 ·
Three masses, a string and pulley and a table -- solve for the acceleration
- Rishabh Narula
- · Replies 20 ·
Current density as a function of distance from the axis of a cylinder
- Physics lover
- · Replies 28 ·
Deflection of Fixed Rotated Beam
- roldy
- · Replies 4 ·
How to answer questions with assess in a scientific way?
- mani88
- · Replies 7 ·
Find Velocity of the wooden block at t=4 sec
- Shivam
- · Replies 10 ·
Will my wrist watch slow down on planet Jupiter?
- Benjamin_harsh
- · Replies 6 ·
Where did ##\large \frac {4R}{3π}## come from?
- Benjamin_harsh
- · Replies 24 ·
Mechanical vibrations: colliding blocks
- vxr
- · Replies 2 ·
Why is the work done in moving a charge around a circular path zero?
- Crystal037
- · Replies 1 ·
What Is the Effect of Friction on the Height of a Sphere Rolling Down a Ramp?
- Lone Wolf
- · Replies 2 ·
(Bipolar Junction Transistor) The Current Gain of Common Base Amplifier
- Terrycho
- · Replies 1 ·
Find the charge of a mass hanging from a pendulum in an electric field
- spsch
- · Replies 4 ·
Is Graphing Capacitance vs. 1/d More Effective?
- databug72
- · Replies 1 ·
Finding the Current Through a Resistor (Working With Parallel and Series)
- Oannes
- · Replies 3 ·
Finding period of balls attached with spring
- atim
- · Replies 1 ·
Draw the F.B.D. (Free Body diagram) of two blocks
- Shivam
- · Replies 6 ·
Man on ladder: jump off instantly vs last moment?
- vxr
- · Replies 4 ·
Why friction plays no role in this non-slipping billiard ball problem?
- andresB
- · Replies 3 ·
What is the final speed of a mass collision?
- ola_12
- · Replies 7 ·
Find the stretch of a steel wire in a static equilibrium problem.
- greenrichy
- · Replies 1 ·
How can I calculate the acceleration of a baseball thrown by a pitcher?
- vxr
- · Replies 13 ·
How to Calculate Induced EMF in Mutual Inductance?
- RwandaGloria
- · Replies 1 ·
Where's my mistake? (Lorentz Transformation for a moving spaceship)
- Efeguleroglu
- · Replies 3 ·
The volume of the nucleus to the volume of the electron
- patric44
- · Replies 1 ·
Thermodynamics: I can't solve this simple entropy exercise....
- babaliaris
- · Replies 1 ·
Series RLC and Parallel RLC circuits
- paulmdrdo
- · Replies 15 ·
Finding force from momentum vector
- Physics lover
- · Replies 3 ·
Work done by friction on a two-block system
- Physics lover
- · Replies 7 ·
Is there any shortcut for this lengthy problem?
- Benjamin_harsh
- · Replies 19 ·
Double slit experiment wavelength of light used
- Iskak
- · Replies 1 ·
Strong Nuclear Force & Particle Accelerators
- flintstones
- · Replies 3 ·
Where does the ##Y_{C}## measurement go in this I section?
- Benjamin_harsh
- · Replies 2 ·
Mechanical vibrations: floating apple
- vxr
- · Replies 1 ·
Two body problem, velocities of two bodies, relative velocity given
- pobro44
- · Replies 9 ·
Reasons for a gain of momentum during a collision
- greenrichy
- · Replies 6 ·
Motion dropping a stone: Time question
- Jeff97
- · Replies 11 ·
Connected system of a bullet and a block
- vxr
- · Replies 7 ·
Mechanical vibrations: maximum velocity
- vxr
- · Replies 2 ·
Calculating Net Force and Friction: Understanding Newton's Laws of Motion
- Kmcquiggan
- · Replies 9 ·
How Do Angular Velocities Remain Constant With Different Radii?
- Benjamin_harsh
- · Replies 5 ·
Minimum force required to prevent sliding down
- Pcmath
- · Replies 1 ·
Motion Q: Dropping/Throwing Stone in Water-Vi, Vf, a, t, d
- Jeff97
- · Replies 12 ·
Find the impulse exerted on the wedge by the ground during impact
- baldbrain
- · Replies 2 ·
Year 11 Physics depth study (Waves and thermodynamics)
- mani88
- · Replies 7 ·
Does the mass of an object affect its inertia?
- gazeem
- · Replies 6 ·
Proof a property for a 3x3 matrix
- mathodman
- · Replies 5 ·
Variation of electric field and potential along the axis of a cone
- Physics lover
- · Replies 11 ·
Inductance of a Solenoid with a Core inside
- titansarus
- · Replies 7 ·
Finding the induced EMF in a solenoid-wire system
- titansarus
- · Replies 1 ·
What does "an axis normal to the plane containing the structure" look like?
- Benjamin_harsh
- · Replies 9 ·
Capacitance of a circular capacitor with two parallel dielectrics
- maxipoblete
- · Replies 2 ·