Recent questions in Physics

+32 votes

0 answers

Can anything exist outside time and space?

asked Feb 10, 2022 in Physics by LuminousDreamer (2.3k points)

+24 votes

0 answers

What is calculus? How do mathematicians use it? What are some real-life applications for calculus that aren't related to science/physics/engineering?

asked Feb 10, 2022 in Physics by CrystalCharm (2.3k points)

+163 votes

0 answers

How would a photon 'experience' time?

asked Feb 10, 2022 in Physics by Sarah Barker

+176 votes

0 answers

In physics, what cannot be explained by the general theory of relativity?

asked Feb 10, 2022 in Physics by gac1967

+56 votes

0 answers

What experiment, done for under $10,000, could possibly falsify the flat Earthers’ theory?

asked Feb 10, 2022 in Physics by ginger tuffs

+214 votes

0 answers

Why is the Moon visible on both sides of the world if it takes 24 hours to spin the Earth and 29½ days to orbit the Earth?

asked Feb 10, 2022 in Physics by handson

+25 votes

0 answers

Will Newton's laws of motion hold true in all frames of references according to Einstein?

asked Feb 10, 2022 in Physics by ellipticalwaiting

+156 votes

0 answers

A car is running at 12 m/s the force of the car is 1000 N , what is the mass of the car?

asked Feb 10, 2022 in Physics by paul the builder

+197 votes

0 answers

Is there any minimum distance to be maintained between two borewells?

asked Jan 20, 2022 in Physics by Oakey Doke

+1 vote

0 answers

Can you explain how hydroelectric dam creates energy in the simplest of terms?

asked Jan 20, 2022 in Physics by BuildingMad

+6 votes

0 answers

What is the formula for calculating the moment of a force?

asked Jan 20, 2022 in Physics by AstralFlare

+6 votes

0 answers

How is a theory different than an opinion?

asked Jan 20, 2022 in Physics by blannder

+17 votes

0 answers

This morning on the way to school my dad told me the universe is expanding. If the universe is everything, what is it expanding into?

asked Jan 20, 2022 in Physics by QuantumNova

+109 votes

0 answers

Why is the Big Bang the most accepted theory if there was nothing before it to cause the explosion?

asked Jan 20, 2022 in Physics by bcooper

+13 votes

0 answers

What is wrong with saying time is the 4th dimension?

asked Jan 20, 2022 in Physics by SolarisOracle

+62 votes

0 answers

How do cellphones emit radiation? Do all electronic devices emit some kind of dangerous electromagnetic waves or not?

asked Jan 20, 2022 in Physics by hundleton1

0 votes

0 answers

A car is travelling with a speed of 72 km/hr. If the car comes at rest after 5 seconds when brakes are applied, what is the retardation?

asked Jan 20, 2022 in Physics by Andrew Spence

+23 votes

0 answers

Why haven't we detected dark matter yet?

asked Jan 20, 2022 in Physics by mark_h

+25 votes

0 answers

A car travels 120 kilometers in two hours. What is the speed of the car?

asked Jan 19, 2022 in Physics by Phil the Paver

+86 votes

0 answers

Why many experts of general relativity, including Hartle, Caroll, Wheeler, consider the gradient of a scalar function to be a 1-form? Isn’t gradient a vector? Isn’t the differential of the scalar function a 1-form rather than its gradient?

asked Jan 19, 2022 in Physics by TTigger

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