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 Many Significant Figures for Time and Mass Calculations?
- helpmedude
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Energy of simple harmonic oscillator
- clemente
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Finding particle one's final velocity in inelastic collision
- jheld
- · Replies 1 ·
Finding net torque from two forces applied to a rod
- cece
- · Replies 8 ·
Finding location of nodes and antinodes.
- blueskadoo42
- · Replies 15 ·
Friction force on a 5 kg mass hanging on a string between two poles
- darkSun
- · Replies 5 ·
How Do You Solve These Basic Physics Problems on Force and Energy?
- nns91
- · Replies 9 ·
How Do You Calculate Sound Intensity and Power from Decibels?
- dislocated_ta
- · Replies 1 ·
Desperate! Circular motion - Acceleration and Velocity Analysis
- nns91
- · Replies 10 ·
Impulse and force from a baseball caught in a glove
- cali_sk8er205
- · Replies 2 ·
Thermodynamics Ideal Gas Problem
- akan
- · Replies 2 ·
How Much Power Does a Car Need to Climb a Hill at 100 km/h?
- frosti
- · Replies 3 ·
How Does Sound Intensity Change with Fewer Firecrackers?
- Alicek
- · Replies 1 ·
Which scenario matches a momentum-conserved velocity-time graph?
- jeremy smith
- · Replies 4 ·
Force needed to pull boxes stacked on each other with pulley system
- davo
- · Replies 6 ·
What Angle Does the Polarizing Sheet's Axis Make with the Horizontal Direction?
- Kathi201
- · Replies 1 ·
How Steep is the Hill if a Car Uses More Power Climbing It?
- curly_ebhc
- · Replies 1 ·
Surface charge distribution of two metal spheres
- jdstokes
- · Replies 2 ·
Transverse wave speed and acceleration: y=0.120sin(πx/8+4πt)
- Husker70
- · Replies 1 ·
Find Orig. Speed 3.0kg Mass After Frictionless Explosion
- ScullyX51
- · Replies 1 ·
How to Calculate Kinetic Energy and Momentum of a Thrown Ball?
- JWDavid
- · Replies 9 ·
How do we calculate experimental errors?
- InSpiRatioNy
- · Replies 3 ·
A stone is thrown at an angle of 36.87 degrees
- devanlevin
- · Replies 1 ·
Maximum depth of submarine window with 40 cm diameter
- Shayna
- · Replies 7 ·
Barrel of Fun - Circular Motion
- thaixicedxtea
- · Replies 1 ·
How Do You Calculate the Amplitude of Oscillation for a Spring-Mass System?
- kristibella
- · Replies 1 ·
Why Is 2r Used in Calculating the Masses in Plaskett's Binary System?
- unknown_2
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What is the force of the track on the car?
- ScullyX51
- · Replies 1 ·
Max Compressive Stress in Cane: 0.00245 MPa
- uno
- · Replies 1 ·
Collision Conservation of momentum
- myoplex11
- · Replies 1 ·
Rotational Motion of a pendulum bob
- piizexakly3
- · Replies 1 ·
How can torque and magnetic field affect the power output of an electric motor?
- Sheneron
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Gravitation: Which formula exactly?
- StingerManB
- · Replies 3 ·
What is the purpose of this diagram in scientific research?
- mtavera1990
- · Replies 2 ·
Cons. of energy with rotational motion
- musicfairy
- · Replies 4 ·
Simple kinematic equations question?
- sbacker
- · Replies 3 ·
Magnetic field in parallel plate capacitor with increasing field
- bcjochim07
- · Replies 1 ·
Distance of hearing a radio station
- gillyr2
- · Replies 2 ·
Is the Laser-Induced Motion in SHM or Mechanics?
- Jack_O
- · Replies 4 ·
Zero velocity and zero acceleraton
- Throwback24
- · Replies 2 ·
Optical Spectroscopy and Atomic Structure
- sheri1987
- · Replies 1 ·
What Determines the Velocity of a Baseball After Being Hit?
- eiktmywib
- · Replies 1 ·
Optics - For what distance must we focus our eyes to see this image
- Kathi201
- · Replies 10 ·
An object placed in front of a plane mirror
- Kathi201
- · Replies 1 ·
Incident Intensity of light transmitted
- Kathi201
- · Replies 4 ·
Effect of Air Resistance on the Speed of a Thrown Ball
- sammyj
- · Replies 2 ·
Space station living quarters problem
- sweedeljoseph
- · Replies 6 ·
How Far From Shore Is the Dog After Walking on the Boat?
- JWDavid
- · Replies 3 ·
Relative kinematics and radius of curvature
- springo
- · Replies 1 ·
Elastic Deformation through compression (stress)
- fanie1031
- · Replies 1 ·
How Do You Calculate Final Speed with Constant Acceleration?
- NukeNuke
- · Replies 12 ·
How Do You Calculate the Overall Center of Gravity for a Person?
- xlaserx7
- · Replies 3 ·
Simple Algebra Question: Finding the Value of X in Equations
- bengaltiger14
- · Replies 4 ·
Net magnetic force in unit-vector notation
- Mike88
- · Replies 1 ·
What is the theoretical maximum distance for a rotating wheel with added weight?
- supamanc
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Conservation of momentum and SHM of a spring
- boredaxel
- · Replies 4 ·
How Can a Block Stay on a Moving Cart Without Falling?
- nns91
- · Replies 2 ·
SHM - Horizontal Spring Question
- GX255
- · Replies 2 ·
Calculating orbital velocity at periastron
- ketkup
- · Replies 2 ·
Amplitude of a wave hitting a boat
- itryphysics
- · Replies 42 ·
Weightless horizontal bar equilibrium
- nora00
- · Replies 4 ·
Stick thrown in air physics problem
- ritwik06
- · Replies 4 ·
General equation of a travelling wave and standin waves on a string.
- Nikhil Kumar
- · Replies 2 ·
Finding the net height to catch a projectile launched at 45°
- ssalem2
- · Replies 3 ·
Gas pressure after withdrawal and heating with PV=nRT
- rinarez7
- · Replies 3 ·
Solve Integral Problem: Work Done By Gas in Barrel
- alucrid
- · Replies 2 ·
What is the Solution for Finding Ball's Speed at Impact and Maximum Height?
- ScullyX51
- · Replies 5 ·
Determining Juliet's Weight Using Center of Mass Principle
- stanford1463
- · Replies 2 ·
Minimum energy to raise vehicle 5.22e6 m above lunar surface
- grantP
- · Replies 3 ·
What Is the Required Distance for Young's Double-Slit Experiment?
- Kris1120
- · Replies 12 ·
How High to Release a Granite Cube to Achieve Specific Speed in a Steel Cube?
- mrjoe2
- · Replies 8 ·
Double slit and colored wavelength
- Kris1120
- · Replies 4 ·
Standing wave node-antinode distance and microwave frequency
- madd_bm
- · Replies 1 ·
Force on drain plug and Torricelli's theorem for saltwater tank
- crhscoog
- · Replies 11 ·
Diffraction grating and red light
- Kris1120
- · Replies 3 ·
Find Acceleration with an angle
- MusicalAyame0
- · Replies 2 ·
Finding tension in a two-mass pulley system
- FOX2PRO
- · Replies 3 ·
What is the equation for finding the position of an elevator at any given time?
- flouran
- · Replies 4 ·
Understanding Circular Motion: Gravitational and Centripetal Forces Explained
- phys1618
- · Replies 14 ·
Height and orbital speed of a geostationary satellite
- phys1618
- · Replies 13 ·
Sound to travel form the TV to the viewer
- zeshkani_usa
- · Replies 4 ·
Finding Values for Thrown Stone from 45m Building
- aquapod17
- · Replies 1 ·
Friction between plank and sphere with applied force at 45°
- ritwik06
- · Replies 1 ·
Finding record moment of inertia when dropped on rotating turntable
- pucr
- · Replies 1 ·
When Can the Mass of a Suspended Bar Be Ignored in Torque Calculations?
- mdewdude
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Magnitude and Direction of Puck on Ice
- cupra
- · Replies 4 ·
What Is the Torque About the Knee at Different Leg Angles?
- bmandrade
- · Replies 17 ·
Rotational Motion (thin hollow pipe)
- Bones
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Collision- I don't think conservation of linear momentum can be established
- fluidistic
- · Replies 2 ·
How Does the Bohr Model Explain Energy Levels in One-Electron Atoms?
- Ousted
- · Replies 2 ·
How high does a baton twirler throw a baton in 1.111111111111 seconds?
- sweedeljoseph
- · Replies 3 ·
Net Work Done on 15.8kg Block: 51907.724 J
- DollarBill
- · Replies 2 ·
Solving Franck-Hertz Curve Questions for Mercury
- ronny45
- · Replies 5 ·
How Do You Calculate Total Displacement in Projectile Motion?
- ssalem2
- · Replies 1 ·
Magnetic force question - should be easy
- bcjochim07
- · Replies 2 ·
How Far Does the Arrow Fall Short of the Target?
- chrozer
- · Replies 1 ·
Finding velocity (deals with coefficient of kinetic energy)
- mandaa123
- · Replies 3 ·