Recent questions in Physics

+17 votes

0 answers

Scientists don't know what 95% of the universe is made of, because the atoms, which form everything we see around us, only account for a measly 5%. According to you, what is the rest of the Universe made of?

asked Jan 10, 2023 in Physics by AstralSculptor

+323 votes

0 answers

What are the conduction band theory and lattice structures?

asked Jan 10, 2023 in Physics by mackie

+80 votes

0 answers

For force to exist, there must be pre existing energy (source having energy), am I right? . Can force exist without having a source?

asked Jan 10, 2023 in Physics by NewMaldenBoy

+27 votes

0 answers

What is the motive behind China’s “artificial sun”?

asked Jan 10, 2023 in Physics by aptsandal

+75 votes

0 answers

How can one find out what an exact solution for general relativity looks like?

asked Nov 20, 2022 in Physics by Tracy C

+153 votes

0 answers

What would happen if all of Earth’s mass was compressed into a ball? What would be its density?

asked Nov 20, 2022 in Physics by Rollie

+24 votes

0 answers

What is the power of nature?

asked Nov 20, 2022 in Physics by MysticPulse

+1 vote

0 answers

How do I levitate an object?

asked Nov 20, 2022 in Physics by Jessie_279 (2.2k points)

+21 votes

0 answers

How fast do electrons travel through a wire in an AC circuit?

asked Nov 20, 2022 in Physics by James23

+127 votes

0 answers

If I fall into water from 20m, feet downwards, is this survivable?

asked Nov 20, 2022 in Physics by apl

+6 votes

0 answers

What would happen if light waves could travel through matter?

asked Nov 20, 2022 in Physics by CelestialTwilight

+20 votes

0 answers

The relative density of iron is 8,what does it mean?

asked Nov 20, 2022 in Physics by Nick Diaz

+41 votes

0 answers

What are the causes of inflation in the US?

asked Nov 20, 2022 in Physics by JarraMag

+271 votes

0 answers

What is the negative pressure test?

asked Nov 20, 2022 in Physics by APC

+12 votes

0 answers

Suppose you try to move a crate by tying a rope around it and pulling it at an angle of 30° above the horizontal. What is the tension required to keep the crate moving at a constant velocity (weight = 500N, coefficient of dynamic friction = 0.40)?

asked Nov 20, 2022 in Physics by breathlesswould (3.1k points)

+4 votes

0 answers

If an antiparticle electron has a velocity of 0.99c, what will its energy be?

asked Nov 19, 2022 in Physics by KIAB (2.9k points)

+13 votes

0 answers

How long will it take to walk 2 km?

asked Nov 19, 2022 in Physics by EmberSeeker

+22 votes

0 answers

Does Earth have gravity because of its mass or does it have a large mass because of its gravity?

asked Nov 19, 2022 in Physics by bowmaiden

+23 votes

0 answers

Why does a shadow defy gravity?

asked Nov 19, 2022 in Physics by Rhysie boi

+234 votes

0 answers

How big is a satellite?

asked Nov 19, 2022 in Physics by Graham C

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