Recent questions in Physics

+1 vote

0 answers

What does it mean for light to be zero-point energy?

asked Apr 14, 2023 in Physics by AuroraAlchemy

+9 votes

0 answers

How do you relate the phrase "time runs slower wherever the gravity is strongest" to the warping of space-time?

asked Apr 14, 2023 in Physics by Osmoll

+22 votes

0 answers

How far would your vehicle travel if you were to brake suddenly while driving at 80 miles per hour on a dry road?

asked Apr 14, 2023 in Physics by wrigleyb

+120 votes

0 answers

Does the vapour pressure and external pressure in a closed environment remains same at any temperature? If no, what is the difference between external pressure and vapour pressure in a closed environment/pressure cooker say at 25C or 100C or 120C?

asked Apr 14, 2023 in Physics by robj26

+3 votes

0 answers

What is the relation between Gibbs energy and entropy?

asked Apr 14, 2023 in Physics by Bazza

+8 votes

0 answers

Why do electrons have only certain allowed spins according to the Pauli exclusion principle?

asked Apr 14, 2023 in Physics by blind fitters...

+136 votes

0 answers

What space mysteries can't scientists explain?

asked Apr 13, 2023 in Physics by LuminousSculptor

0 votes

0 answers

What (if anything) is of such light weight & low density that it could be released in orbit, and decelerate without burning up. I’m thinking aerogel, paper, a thin sheet of fiberglass, etc? Could it reach the ground intact?

asked Apr 13, 2023 in Physics by winn

+200 votes

0 answers

Which subject is easier, physics or mathematics in the SSC CGL?

asked Apr 13, 2023 in Physics by LunarHarmony

+10 votes

0 answers

If time dilation makes clocks tick slower in gravity or through motion, shouldn’t this also change the overall frequency (i.e., deeper voices)?

asked Apr 13, 2023 in Physics by Galaxy

+27 votes

0 answers

Can electromagnetic waves be produced by moving charges without using Maxwell's equations (or their equivalents)?

asked Apr 13, 2023 in Physics by Plumber001

+96 votes

0 answers

What is red shift in physics?

asked Apr 13, 2023 in Physics by NebulaPulse

0 votes

0 answers

Is it possible to create an object which can be attracted by the Earth's magnetic force but not repelled by its gravitational force?

asked Apr 13, 2023 in Physics by Mr Kipling

+196 votes

0 answers

What was the maximum speed of the DeLorean time travel (in the 'Back to the Future' trilogy)?

asked Apr 13, 2023 in Physics by LuminousHorizon

+107 votes

0 answers

What is the difference between "natural frequency" and "resonant frequency"? If there is a difference, why do they exist separately in physics/engineering? When should one be used instead of the other?

asked Apr 13, 2023 in Physics by Joao Pequeno

0 votes

0 answers

How long will it take to travel 4 light years?

asked Apr 13, 2023 in Physics by Aura noire

+894 votes

0 answers

A force of 300 N is applied to a 50 kg box. The coefficient of friction between the box and floor is 0.4. What is the acceleration of the box?

asked Apr 13, 2023 in Physics by Bob Rathbone

+44 votes

0 answers

What would happen if all technology stopped working?

asked Apr 13, 2023 in Physics by QuantumHorizon

+125 votes

0 answers

What is potential energy, and why is it important?

asked Apr 13, 2023 in Physics by RadiantCharm

+15 votes

0 answers

What would happen if we moved in space? Would our weight or mass change?

asked Apr 13, 2023 in Physics by BaldyMatt1976

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