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 30° angle used for in electromagnetic induction?
- cuongbui1702
- · Replies 2 ·
No Work Done on a Textbook: Explanation of Concept
- Hockey101
- · Replies 5 ·
Dipole moment of quadrupole charge distribution on a ring
- ks_wann
- · Replies 6 ·
The period for small oscillations of a system
- zeralda21
- · Replies 6 ·
Kinematics Questions: Acceleration, Velocity, and the Speed of Light
- Physicsrapper
- · Replies 2 ·
Capacitor Energy with a Dielectric
- JMaria
- · Replies 5 ·
Motion of a Particle in a Plane: A Quiz
- lobbob
- · Replies 3 ·
Parallel Plate Capacitor and Battery
- tristanm
- · Replies 3 ·
Electric Fields of Cylinders and Cylindrical Shells
- tristanm
- · Replies 4 ·
Work done by force with angled pulley system
- Coop
- · Replies 6 ·
Dimensional Analysis Problem: Mass of the Solar System Excluding Planets and Sun
- HSuzuki
- · Replies 1 ·
Need Help w/ Massachusetts Physics Standards
- cmkluza
- · Replies 3 ·
Why is EMF equal to Bvl when velocity is not constant?
- cuongbui1702
- · Replies 2 ·
Boat recoiling after firing 75 bullets at 600 m/s
- BrainMan
- · Replies 5 ·
Conservation of momentum uranium atom problem
- BrainMan
- · Replies 18 ·
Why negligible vibration in diatomic gas heat capacity
- HemaZ
- · Replies 4 ·
Calculating pipe diameter for half-flow condition/mannings equation
- kachi
- · Replies 2 ·
Is Gravity Involved in the Motion of a Pendulum After a Collision?
- Maxo
- · Replies 4 ·
Understanding Torque for car rollover
- Maxo
- · Replies 4 ·
Electric field in and around an infinite sheet of charge.
- morangta
- · Replies 7 ·
Poisson distribution (radioactive decay)
- steamyoshi
- · Replies 5 ·
Refraction and Magnification of a Coin in a Glass Cylinder
- Speedking96
- · Replies 5 ·
Velocity of uniform circular motion
- Govind_Balaji
- · Replies 17 ·
Need free program to plot expressions in polar coordinates
- morangta
- · Replies 1 ·
Should I use 10log or 20log for electric field in decibels?
- tamtam402
- · Replies 2 ·
How does pressure energy influence fluid flow in a tube with varying heights?
- manimaran1605
- · Replies 1 ·
Finding Vout/Vin of an RL filter
- stude
- · Replies 9 ·
Find maximum velocity in Acceleration-Time Graph
- Govind_Balaji
- · Replies 4 ·
What is the Solution to a Perfectly Inelastic Collision Problem?
- BrainMan
- · Replies 2 ·
Phase difference of damped oscillations
- kelvin macks
- · Replies 2 ·
Induced voltage in rectangular loop
- beborche
- · Replies 5 ·
Q vs q in Coulomb's Law: Understanding Notation for Charges
- ChiralWaltz
- · Replies 2 ·
Why isn't the phase difference pi/2 in part ii?
- kelvin macks
- · Replies 5 ·
Which Material Exerts Greater Impulse When Jumping Off a Dock?
- Maxo
- · Replies 1 ·
How Do I Calculate the Coefficient of Friction in a Ramp Experiment?
- HappyScientist
- · Replies 3 ·
Oscillatory motion? Does this spring have to do with oscillatory motio
- boii
- · Replies 6 ·
Finding initial wavelength of photo given angle of deflection
- negation
- · Replies 3 ·
Understanding Work and Energy in a Trampoline Jump
- Maxo
- · Replies 9 ·
I'm trying to simulate moon orbit around earth, my moon is broken.
- xzbobzx
- · Replies 33 ·
Static Equilibrium with a beam and cable
- Juniper7
- · Replies 5 ·
Maximum diffraction order for periodic slit array
- Flucky
- · Replies 2 ·
Find the mean number density of particles in the stellar atmosphere.
- Jon.G
- · Replies 2 ·
Capacitor circuit for energy-harvesting shoe prototype
- jufo2014
- · Replies 6 ·
Velocity of train if it passes 2km bridge in 110sec and a point in 10s
- Govind_Balaji
- · Replies 8 ·
Static Equilibrium and tension of cables
- Juniper7
- · Replies 7 ·
Constant Breaking force for roller coaster
- rexorsist
- · Replies 7 ·
Angular acceleration and speed of falling rod pivoted at base
- Juniper7
- · Replies 9 ·
Electromagnetics density of Toroid
- baby_1
- · Replies 4 ·
Solving Second Order Nonhomogeneous DEs with Initial Conditions
- Plaetean
- · Replies 9 ·
Rotational Energy/Speed of a System?
- Juniper7
- · Replies 8 ·
Torque and Newton third's law applied to rotatory motion.
- Bedeirnur
- · Replies 6 ·
Does induction lose electrons or gain them?
- cuongbui1702
- · Replies 1 ·
Force between two boxes pushed across a frictionless surface
- Maxo
- · Replies 19 ·
Behavior of the air when the angle of attack increases
- Reveille
- · Replies 3 ·
Collision of thermal neutrons and Cobalt
- skrat
- · Replies 5 ·
What is the relationship between current and voltage in an inductive load?
- MarcL
- · Replies 9 ·
Force and acceleration on sodium atom if laser bundle shines on atom
- jennyjones
- · Replies 3 ·
Could someone look over the data of my SHM Lab?
- jessigchse
- · Replies 1 ·
Question in dynamics projectile motion
- abdo99
- · Replies 3 ·
Finding current and voltages in an RLC series circuit
- MarcL
- · Replies 16 ·
LCR circuit oscillatory current with L<4CR²
- albega
- · Replies 18 ·
Area of a Triangle Using Vectors.
- smakhtar
- · Replies 19 ·
Points close to the source not behaving like inverse-square
- steamyoshi
- · Replies 8 ·
Find Potential Difference Across AB: Capacitance Problem Solved
- rajumahtora
- · Replies 4 ·
Calculating Power Dissipation in a Thin Conducting Disc with Induced Currents
- fayled
- · Replies 13 ·
What is the solar constant in certain area of earth per day?
- viniterranova
- · Replies 9 ·
Calculating average force - momentum problem
- AgentRedfield
- · Replies 1 ·
Free-body diagrams and equilibrium for two-point string system
- Sullivan
- · Replies 7 ·
Rearranging capacitor charge/discharge equation
- Hassss
- · Replies 16 ·
How Do You Calculate θ_dot in Polar Coordinates?
- ma18
- · Replies 3 ·
Special Relativity: Rocket Signal Reception Time and Frequency Shift
- physiks
- · Replies 5 ·
Neutrons scattering on Silver plate
- skrat
- · Replies 7 ·
Electron momentum uncertainty with 10^-15m position uncertainty
- BOAS
- · Replies 2 ·
What is the amount of work done in moving the box from the bottom to t
- TheLetterDex
- · Replies 3 ·
Acceleration at constant velocity?
- ma18
- · Replies 1 ·
Simple Calculation of Astronomical Unit Problem
- unscientific
- · Replies 2 ·
Which Rope Sustains Greater Tension: Tree or Tug-of-War?
- Maxo
- · Replies 2 ·
Jumping box with a spring and mass inside
- Zeor137
- · Replies 2 ·
Plank on sawhorses: why is the center of gravity not at the plank's center?
- TheRedDevil18
- · Replies 5 ·
Modeling the Motion of a Car Against Constant Frictional Resistance
- grae
- · Replies 6 ·
Hooke's law and circular motion.
- negation
- · Replies 36 ·
Power supplied holding a mass suspended in air
- piisexactly3
- · Replies 3 ·
Transformers and inverse square law
- adjacent
- · Replies 11 ·
Shoot the moon - differential equation for motion in earth - moon syst
- visio
- · Replies 4 ·
Ball dropped 30 m rebounds with half velocity: momentum and impulse to Earth
- BrainMan
- · Replies 3 ·
Solve Induction Slider Homework: Find AB Voltage & Current
- fayled
- · Replies 12 ·
What was the angle of deflection?
- Ale_keys
- · Replies 1 ·
Differential form of Gauss' theorem with dielectrics
- Ocirne94
- · Replies 8 ·
Speed of a rocket using energy methods
- BrainMan
- · Replies 11 ·
Which slide will have a higher speed at the end of the slide?
- alingy1
- · Replies 5 ·
Rotational Dynamics and string Tension
- Juniper7
- · Replies 2 ·
Max Shortening of Spring for Elastic Collision 3
- Karol
- · Replies 9 ·
Load Voltage Problem - Find the Fault!
- alexmath
- · Replies 2 ·
Calculating Power: Answer to Quads @ 180 deg/s
- PepperABLF12
- · Replies 3 ·
Linear velocity of foot from angular velocity at knee joint
- PepperABLF12
- · Replies 3 ·
Cube tipping on horizontal surface
- raving_lunatic
- · Replies 3 ·
Direct circuit homework problem
- fdbjruitoirew
- · Replies 12 ·
Angular Acceleration: 0.29 rad/s/s
- PepperABLF12
- · Replies 2 ·
What Pin Position Ensures Rigid Body Rotation Upon Impact?
- TheFerruccio
- · Replies 3 ·