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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Finding resultant force and direction from two forces on a car
- delfam
- · Replies 4 ·
Review Q #5 (Projectile Motion)
- TeenieWeenie
- · Replies 10 ·
Calculate Displacement Between Two Oases Without a Coordinate System
- TeenieWeenie
- · Replies 13 ·
Derive Planck Length in terms of c, G, and h_bar
- MCS5280
- · Replies 3 ·
Review Q #6 (Projectile Motion)
- TeenieWeenie
- · Replies 6 ·
Do gravitational forces count in action-reaction pairs during collision?
- issacnewton
- · Replies 6 ·
Building Height Calculated - Thanks Thaakisfox!
- TeenieWeenie
- · Replies 8 ·
Problem Driver Must Average 337.5 km/h for Last 4 Laps
- TeenieWeenie
- · Replies 4 ·
Calculating Power/Torque for Amusement Park Ride
- Jack Snaith
- · Replies 17 ·
How does the release of a sandbag affect the motion of a hot air balloon?
- mopar969
- · Replies 5 ·
Kirchoff's Law Problem: Finding Currents in a Parallel Circuit
- ahazen
- · Replies 1 ·
Concentric Cylindrical Conducting Shells Potential Difference
- jeff24
- · Replies 1 ·
Impulsive tensions in strings connecting three particles at 120°
- franklinear
- · Replies 1 ·
Projectile Motion-Shooting a Ball
- atbruick
- · Replies 3 ·
Projectile Motion: Finding Speed and Direction at 1.41 Seconds After Firing
- atbruick
- · Replies 3 ·
Why does reducing resistance increase heating rate if power stays constant?
- le_arjun
- · Replies 6 ·
How to Calculate Time and Displacement for a Ferry Boat Crossing a River?
- Wizzker
- · Replies 1 ·
Static Friction- Train stops, boxes move?
- battlebball
- · Replies 1 ·
How Fast Does Nitrogen Expand to Power Piston Arms?
- jooster
- · Replies 3 ·
Finding maximum wall height at 120m for a 38.2 m/s baseball hit at 30°
- mohabitar
- · Replies 3 ·
Can the problem about relative motion be solved without using calculus?
- issacnewton
- · Replies 4 ·
Projectiles launched at an angle, neglecting air resistance
- bmwguy400394
- · Replies 1 ·
Age comparison to observer on Earth (time dilation)
- ideaessence
- · Replies 3 ·
Force Exerted by Shot-Putter: Solving the Puzzle
- TheNovice
- · Replies 2 ·
Manipulating the Symple Equation to Solve for Initial Velocity
- vnonwong
- · Replies 1 ·
I'm really lost with average velocity and displacement
- totalanarchy
- · Replies 6 ·
Calculate time traveled from launch to land
- ://Justice
- · Replies 3 ·
Resistor Circuit Analysis: Finding Total Resistance and Current Distribution
- ahazen
- · Replies 1 ·
Show magnitude of velocity vector in polar coordinates
- leonne
- · Replies 2 ·
Electric Field in Cylindrical Insulator
- felguk
- · Replies 3 ·
Motion problem for constant acceleration
- chroncile
- · Replies 1 ·
What is the Norton equivalent current for terminals a and b in this circuit?
- gomezfx
- · Replies 5 ·
Calculating Maximum Height in Projectile Motion for an Olympic Long Jumper
- atbruick
- · Replies 3 ·
Heat Q flows spontaneously from a reservoir at 383 K into a reservoir
- copitlory8
- · Replies 31 ·
Particle Acceleration and zero velocity
- bdb1324
- · Replies 3 ·
What Happens to Forces and Motion When Variables Change?
- needhelpfast
- · Replies 2 ·
Terminal velocity of a raindrop with air resistance
- john12933
- · Replies 1 ·
Net force from four firefighters holding a square net
- basenne
- · Replies 6 ·
Estimate the velocity achieved when you jump
- leonne
- · Replies 2 ·
Minimum Force to Move 6kg Object on Friction Surface
- uchicago2012
- · Replies 1 ·
Uniform Circular Motion of a car
- uchicago2012
- · Replies 14 ·
How to find the initial velocity given only angle and distance traveled
- ://Justice
- · Replies 9 ·
Solving the Projectile and Ramp Problem
- physics_noob2
- · Replies 1 ·
Dielectric Capacitor: Calculation and Force Exertion
- sheepcountme
- · Replies 1 ·
Force needed to push a chair at constant speed 2v
- narutodemonki
- · Replies 4 ·
Projectile Motion on a Hemispherical Rock: Finding the Minimum Initial Speed
- TheTaoOfBill
- · Replies 1 ·
Balancing centrifugal and gravitational forces for a mass on a rotating planet
- dirk_mec1
- · Replies 4 ·
Object falling due to Gravity Problem
- mopar969
- · Replies 8 ·
Determining the Age of an Egyptian Mummy
- quantum_enhan
- · Replies 2 ·
Solving Kirchoff's Rules in a DC Circuit
- hrs90
- · Replies 6 ·
Firefighter's Water Stream Strike Height Calculation
- jitto92
- · Replies 1 ·
Derive y as function of time in relation to terminal velocity
- Ryker
- · Replies 19 ·
Gravitational forces equal in between an object
- huronjubal
- · Replies 2 ·
Is acceleration magnitude constant for an object moving along an ellipse?
- eestep
- · Replies 4 ·
Moment of inertia of spherical shell
- tsw99
- · Replies 1 ·
How to Calculate Projectile Motion Using Horizontal and Vertical Equations?
- physicswowoye
- · Replies 2 ·
Conservation of Mechanical Energy - I can't see what I'm doing wrong
- Hemingway
- · Replies 15 ·
Rate of heat loss ramining constant
- copitlory8
- · Replies 9 ·
Newtons Third Law and Force Imbalance
- narutodemonki
- · Replies 1 ·
How Does the Falling Chain Problem Illustrate Variable Mass Dynamics?
- tsw99
- · Replies 9 ·
What is the Relationship Between Acceleration of a Block and a Pulley?
- imatreyu
- · Replies 4 ·
Solving I3 Resistor Problem with Kirchhoff's Laws
- Loke
- · Replies 22 ·
How to Calculate the Absolute Uncertainty in Distance Measurement?
- anwarjackson
- · Replies 6 ·
What is the Significance of Percentage Discrepancy in Data Analysis?
- shyta
- · Replies 1 ·
What Does 'Equation of Motion for the System' Mean in Physics?
- Hotwir3
- · Replies 6 ·
Calculate the initial velocity given degree and time
- ://Justice
- · Replies 1 ·
Two thermally insulated tanks, calculating final temperature and final pressure
- copitlory8
- · Replies 15 ·
Rope around Pole, friction intuition
- Self-Help
- · Replies 4 ·
Weighing a Salmon in an Elevator: What's the Apparent Weight?
- Snowflake9
- · Replies 3 ·
Are My Superposition Circuit Equations Correct?
- gomezfx
- · Replies 8 ·
Designing a Voltage Divider Circuit with a Trim Pot
- EEhokie13
- · Replies 2 ·
How Does Friction Affect a Sliding Wheel on an Inclined Slope?
- Lalasushi
- · Replies 3 ·
Voltage Across Two Capacitors In Series
- Brilliant
- · Replies 3 ·
Combining Equations for Lab report
- chroncile
- · Replies 3 ·
Centripetal Acceleration and Satellite Question
- chihockey7
- · Replies 4 ·
Parachutist free fall then deceleration kinematics
- Terraist
- · Replies 1 ·
Newtonian mechanics of a metal slab
- uchicago2012
- · Replies 1 ·
Finding the magnitude of vector F = (5i - 5j)
- Allura
- · Replies 1 ·
Winch power equation for lift with counterweight
- karmatic
- · Replies 5 ·
Finding acceleration from dropped objects using kinematics
- GodAllen
- · Replies 3 ·
Tension Problem: Lifting Yourself
- joshk_bra
- · Replies 2 ·
What is the resulting acceleration of the block?
- uchicago2012
- · Replies 5 ·
Rocket Out of Fuel: Time and Altitude
- afa
- · Replies 1 ·
Velocity, Work, and Acceleration
- mohabitar
- · Replies 7 ·
Bucket whirled in vertical circle: negative tension and circular motion
- PhysicsDaoist
- · Replies 1 ·
Calculating the Height of a Cliff Using the Speed of Sound
- afa
- · Replies 2 ·
Stopping distance w human reaction time
- afa
- · Replies 3 ·
Minimum Force to Make an Object Move
- uchicago2012
- · Replies 2 ·
Uniform Circular Motion of dice
- uchicago2012
- · Replies 4 ·
How Do You Design an Automobile Bumper to Absorb Impact?
- James22
- · Replies 1 ·
Calculating Work Done by Friction
- rfig08d
- · Replies 2 ·
What Is Integrated Visual Magnitude in Astronomy?
- tony873004
- · Replies 2 ·
Finding x and y components of a vector with angle theta
- jaytm2291
- · Replies 6 ·
Conveyor belt and friction- Determine slip time
- JJBladester
- · Replies 1 ·
What is the minimum size of a mirror for a person to see their whole image?
- rambo5330
- · Replies 1 ·
Gunshot Projectile Motion: Two possible angles*
- shissqbob
- · Replies 1 ·
Truck approaching a car accelerating from rest
- chroncile
- · Replies 3 ·
Human body Physics 2020 question
- sprint84
- · Replies 3 ·
How Does Temperature Change Affect Pressure in a Piston-Cylinder System?
- pleasehelpme6
- · Replies 1 ·
Solving Ball Clearing Fence: Does It Go Over?
- apiwowar
- · Replies 4 ·