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Physics, rebuilt! 96 topics with the formula in view and step-by-step solutions, 54 problems you can edit, a circuit solver with step images, vectors with dot and cross products, and an explained unit converter. New design across the app.
Solve physics step by step: formulas, solved problems, unit converter & circuits
Stuck on physics homework or studying for a test? Physics: Formulas & Problems solves physics step by step: pick a topic, type your data in any unit, and the app rearranges the formula, converts everything to SI units and shows every step of the solution. Made by a math and physics teacher for high school, AP Physics and college students. ★ 96 PHYSICS TOPICS WITH STEP-BY-STEP FORMULAS • Choose what you want to find: the app solves the equation for that variable. • See the formula while you enter your data. • Automatic unit conversion (mph, °F, atm, cal, kΩ…). • Each step explained, plus "What is it?", "When is it used?" and a final sentence that interprets the answer. • Supporting images for every topic. Topics included: • Kinematics: uniform motion, constant acceleration, free fall, projectile motion, circular motion, pendulum. • Dynamics: Newton's laws, friction, inclined plane, Atwood machine, gravitation, torque, collisions. • Work, energy and power. • Fluid statics: pressure, density, Pascal's and Archimedes' principles. • Fluid dynamics: flow rate, continuity equation, Torricelli. • Ideal gases: Boyle's, Charles's, Gay-Lussac's and the combined gas law. • Thermodynamics: heat, calorimetry, thermal expansion, first law, Carnot. • Waves and optics: Doppler effect, sound, Snell's law, lenses. • Electricity and magnetism: Coulomb's law, electric field, Ohm's law, capacitors, Lorentz force, Faraday's law, transformers. • Modern physics: photoelectric effect, E = mc², relativity, radioactive decay. ★ 54 SOLVED PHYSICS PROBLEMS YOU CAN EDIT Search for a problem, change the numbers in the statement and the detailed solution updates instantly. Perfect for practicing with your own exercises. ★ ELECTRIC CIRCUIT SOLVER • Resistors in series and in parallel. • 15 mixed circuits with an image for every reduction step. • Delta–wye (star) transformation. • Current, voltage and power in every resistor. ★ VECTORS • Vector addition and subtraction with a graph. • Dot product and cross product. • Angle between vectors and projection. ★ UNIT CONVERTER 44 quantities and almost 800 units: length, mass, speed, pressure, energy, temperature, flow rate and more, with each conversion explained step by step. ★ BUILT FOR STUDYING • Share your solutions or save them as PDF. • Available in English, Spanish and Portuguese. • Topics and calculations work offline. Use it as a physics calculator to check your homework, as a formula sheet before an exam, or as a tutor that shows why the problem is solved that way.