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.
Find the mass of odium for both solid and liquid state
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Find the final temperature of the combined honorite and odium?
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5
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793
Difference between maximizing amplitude by choosing omega_0 given omega_d versus choosing omega_d given omega_0.
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4
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986
Mechanisms Involved When Charging a Battery
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10
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2K
Find final temp of 2 substances once they have reached equilibrium
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6
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What is the meaning of the intercept of a particular solution to damped oscillator?
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7
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Magnetic Field of an infinite current-carrying wire at a point
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5
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To what extent does this system behave as a pendulum?
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1
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Force on a block placed on a rotating disc, calculated in different reference frames
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25
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How does a simple circuit work?
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12
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Why is current constant through a resistor?
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11
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Did I Misuse the Parallel Axis Theorem for Polar Moment of Inertia?
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2
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975
Why is the current in a conductor equal to zero when not connected to a circuit?
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13
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1K
Why does electric potential energy increase if you move against the field?
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6
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2K
Determining angular velocity of weight attached to a cord and cylinder
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23
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Electromagnetic force on a positively charged particle
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3
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732
Why would this be accelerating positively?
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6
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1K
Calculating the Relative COG of Two Masses
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20
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Pistons placed on top of communicating vessels
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20
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1K
Is Linear Momentum Conserved in This Case? (sliding box hits a floor tile)
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2
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1K
Ray optics: velocity of image reflected off a moving mirror
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5
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1K
Analyzing torque of an automobile engine
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6
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1K
Confusion over acceleration of gravity as positive/negative
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10
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2K
A cylinder has two sides containing gas and water separately
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4
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724
Finding the angular velocity of a pendulum
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3
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1K
Number of bright fringes given by diffraction grating on a screen
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6
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3K
How Many Lines Per Millimeter Does the Diffraction Grating Have?
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5
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15K
What’s gone wrong with my derivation of the Lorentz Factor?
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7
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931
Find ratio of brightness & the distance the 6th dark fringe is from central fringe
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5
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790
Coulomb's law to find electric field for charge density function
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11
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1K
Find smallest distance x from y-axis for both constructive & destructive interference to occur
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5
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888
Find smallest value of y for constructive interference
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3
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708
EMF induced in moving rod in B-field, why is "L" length of wire frame?
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4
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906
Why is vertical displacement second order in horizontal displacement for coupled oscillator?
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8
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890
Induced EMF due to a moving magnet
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7
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956
How to Apply Derivatives in Physics Problems?
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9
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How to calculate pressure when two forces are exerted
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23
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Equivalent resistance of this 6-sided circuit
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2
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59
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2K
Please help with this suggested solution involving electrostatic press
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14
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1K
Find the change in the time required, if acceleration increases by the differential amount 'da'
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7
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1K
Solving for potential using surface charge density of a sphere
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3
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1K
Tension in a string which connects 3 pulleys
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12
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1K
Particle in one dimension wave function from Quantum Mechanics
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3
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830
Minimal distance between two planes moving perpendicularly
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6
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909
Analyzing acceleration of block on a ramp connected to a pulley
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15
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2K
Friction problem of a block sandwiched between 2 surfaces
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6
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1K
How friction acts on a block moving down a slope moving side to side
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2
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1K
How to find the equivalent resistance of this infinite circuit?
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The div in cartesian coordinates
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2
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905
Find the location of the diver's reflection in the convex mirror
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19
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953
Find the electric field between 2 finite discs
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16
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Find the location and length of the final image
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2
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Man pulling a boat along the water with a rope (from above on a steep bank)
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2
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Material Selection - Hooke's law [not]
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14
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971
Tension Force Problem (applying Work-Kinetic Energy Theorem)
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Falling mass, additionally accelerated by a rope
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18
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Calculating torque on a pendulum
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2
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930
Electric field lines outside a neutral conducting spherical shell
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12
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2K
How to calculate quality factor for RLC circuit?
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6
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Gauss' law for charge distribution of a point charge at the origin surrounded by an insulating sphere
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1
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691
Mass atop four springs with external input: Reduce vibration amplitude by factor of ten
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3
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987
What mass must be placed on the cord to keep the pulley from rotating?
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Ratio of volumes in a vertical cylinder with a piston
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3
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Estimating damped harmonic oscillator parameters from this plot of the oscillations
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9
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A rod that falls while rotating from the end of a table
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11
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Question about Projectile Motion: Throwing a Flower Pot from a Balcony
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18
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Doubt regarding View factor/shape factor of infinite inclined plate
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3
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895
The speed of the point of intersection of two uniformly moving lines
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24
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Theoretical velocities at different heights sliding down an inclined plane
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4
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992
How to determine if electrical components are connected in parallel or in series?
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10
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Electric flux through an inclined cylinder
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A charge q approaching two stationary charges q1 and q2
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7
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Analyzing this 2-lens optical system
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Charge conservation for 3 parallel charged plates
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19
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Force transmitted to a block in viscous fluid through a spring, cord, and pulley
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6
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981
Two Inverted Pendulums connected by a rope
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10
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613
Gauss' law problem -- Should the field due to both the inside and outside charges be taken into account?
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28
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Help finding the change in potential energy in this problem
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9
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914
Textbook 'The Physics of Waves': Linearity of Forced Oscillator
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6
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995
Induced currents on a pair of separated dipole antennas
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2
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750
Thermodynamic cyclic process - 2 isobaric and 2 adiabatic
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5
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864
Ball launched from a height of 5 meters --- Projectile motion
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12
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Block on top of an inclined plane, with a rough surface, that moves with constant acceleration
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2
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41
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4K
Energy analysis of the system (leaking bucket from Morin's "Mechanics"
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5
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Textbook 'The Physics of Waves': Lifetime of SHM Oscillators
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5
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903
Textbook 'The Physics of Waves': Calculating Work Done by Force
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2
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Textbook 'The Physics of Waves': Reason to force us to consider complex solution for harmonic motion?
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3
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Is there a limit on how much energy a photon might have in a FOR?
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10
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How to parametrize motion of a pendulum in terms of Cartesian coordinates?
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1
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Is the line integral of tangential force in pendulum equal to the negative of change in potential energy?
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3
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What is meant by small oscillations for this potential energy function?
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939
Initial velocity of bird landing on horizontal wire modeled as spring
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Circular motion of a Weightless rod
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18
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Electric field of point along the central vertical axis of a triangle
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3
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Proving Newton's 3rd law from conservation of momentum
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2
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868
Finding speed of two billiard balls in elastic collision
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9
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Electromagnetism - Infinite plane of charge & Tension
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9
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873
Measurement of the Stefan-Boltzmann constant
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6
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751
Why is the superposition principle valid here?
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Morin 3.7 -- Block sliding sideways on an inclined plane
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