Introductory Physics Homework Help Forum

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Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
How Does Spring Force Affect Kinetic Energy and Work Done on a Block?
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Direction of reaction force in a circular motion
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Work and force problem with vectors
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Finding the Unknown Force on an Inclined Plane
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Work done on an incline plane with friction
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Value of Charge Q: Why Use Distance not Radius?
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Why would hot fluid retain more % heat at lower flow rates?
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Centripetal force is resultant force?
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Open circuit armature voltage of dc machine?
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Finding the velocity of a spring
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Block Slides Down a Movable Ramp....
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Kinetic energy and work problem
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What is the Final Speed of the White Ball After an Elastic Collision?
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What is the correct speed to keep the cylinder at rest?
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What is the charge (Coulombs) of a nanogram of electrons?
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Thermal Kinetic Physics Question involving PV diagram
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How can I calculate the strength of a beer can / soda can?
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How Does the Coriolis Force Affect a Ball Toss on a Merry-Go-Round?
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Electrostatics:Longitudinal charge density of conductors
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Calculating Distance Traveled by a Particle using Differentiation and Graphing
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Value of n for the energy level transition that produce lamb
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Why do we solve i and j components of a vector using trig?
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What Does a Non-Relativistic Approach Mean in Quantum Mechanics?
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What is the magnitude of the final momentum?
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Algebra Problem with Capacitators
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Conservation of Mechanical Energy
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Solve Retardation Problem: 25m from Traffic Light
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How long does the box take to reach the wall?
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Displacement Problem: Solve 5th & 3rd Turn
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Newton's Third Law -- Normal vs. Tensile as Opposite of mg?
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Motion with constant acceleration
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Projectile Motion baseball Problem
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Time of flight of projectile motion
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What Is the Shortest Path an Ant Can Take Across a Cube?
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Rocket Losing Mass: Finding Ratio of Max Momentum to Initial Mass
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Position of unknown material on electrostatic series?
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Calculating Angular Velocity of Beads on a Rotating Hoop
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Intensity of polarization vector of a plate capacitor
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Solve Resistance Problem: Circuit Total Resistance
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Someone verify my answer to this question about rotation?
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Induction motor equations question
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What is the Height at which the Resultant of Three Forces Acts?
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A circular loop over a magnetic field directed outwards
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Circular Motion Equation homework
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Using E=mc^2 does thermal energy add to an object's mass?
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Parallel Axis Theorem derived from the Displaced Axes Theorem.
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Direction of normal reaction of the Ferriw wheel at the high
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Conceptual doubt in a rotating ring
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Gravitational Constant and Velocity
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Uniform circular motion problem
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Friction of a sliding box on a slope
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How Does Gauss's Law Apply to a Sphere with a Radial Charge Distribution?
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What are the tensions and movements in this force and motion problem?
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2 blocks connected by massless string VS. pulley system
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Electromagnetic Wave Calculations
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Calculating the fall of the moon in one second
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Deriving the Hamiltonian of a system
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How Do You Calculate the Tension in String A?
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Why Do My Pulley System Calculations Differ From My Teacher's Measurements?
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Did I find an error in webassign?
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Voltage across resistors in RC circuit
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What is the relationship between uncertainties in position and momentum?
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Find the placement for 4th mass
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Can the coefficient of friction be as high as 15.5?
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Connection between increase in pressure and melting point
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What is its speed in m/s when x = 8.00m
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What is the meaning of the 5 kVa rating in a 240:120 V transformer?
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Why is Static Friction Oriented Downwards on an Inclined Plane?
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Solving Vectors & Surfing Problem at Waikiki
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The Role of Inertia in Friction and Acceleration
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Electric Potential Problem - Fixed Template
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Calculating Moments for F = 70 lb
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Where on the X-Axis is the Net Electric Force Zero?
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How to find the potential difference with constant charge
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What is the angle of equilibrium for a rod in a hemispherical bowl?
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A container holds 8.0kg of water at 25degC....
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5 blocks suspended from ceiling -- What are the tensions?
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How Is Tension Calculated in a Lifting Cable?
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Why Do Two Wires Carrying Currents in the Same Direction Attract Each Other?
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Find electric potential at a center of charged rod
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Show that Newton's 2nd Law is *Not* valid in a reference frame
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Vertical Deflection of Electron: 1.1×107 m/s & 3.2×10-16 N
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Initially you are driving at 45 ft/sec on a straight road
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Uniform circular motion of a particle problem
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What is the Magnitude of Betty's Force for Equilibrium?
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What is the Average Speed and Acceleration of a Car on a Straight Road?
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Coulomb triple integral for a sphere
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If a chicken & rooster are fighting over a spaghetti string
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Calculate the force of ball on an incline leaning on a wall
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Approaching a Cops and Robbers Chase Problem Using Equations of Motion
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What is the tension in the string?
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Frequency of Oscillation: Two Springs Connected to a Mass m | Homework Help
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Investigate one factor that affects the angle of refraction
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How far does it take for an object to reach maximum velocity
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Potential Energy and Velocity of a Spaceship
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How much work is required to stop an electron
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Calculation of equivalent resistance
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A curve of radius 76 m is banked for a design speed of 100 km/h
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Velocity of current-carrying cylinder
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Voltage Equation Homework: KCL & KVL Solutions
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