Recent questions in Physics

+2 votes

0 answers

What is the mass of 10ml of water?

asked Feb 13, 2022 in Physics by Baxi Boy

+7 votes

0 answers

How is it possible that something can be at rest in space but moving through time? If it moves in time it also needs to be moving in space, say, a gravitational field, isn't that right? Obviously I'm wrong, but this seems so paradoxical.

asked Feb 13, 2022 in Physics by Phil the Decorator

+61 votes

0 answers

If there is both kinetic and potential energy present in an object with mass on Earth, can the total mechanical energy be zero? If so, how can that happen?

asked Feb 13, 2022 in Physics by Robert Stroud (4.3k points)

+7 votes

0 answers

Can ventilation be achieved if the window is opened and the door is locked? Is the airflow unidirectional from the window to the door crack or can the air go in and go out freely through the window? (small room, no air conditioner)

asked Feb 12, 2022 in Physics by Sarah Barker

+204 votes

0 answers

Is it possible to make a ship that travels at FTL speeds (faster than light)? If not, why?

asked Feb 12, 2022 in Physics by masterdiy

+7 votes

0 answers

Does the sound frequency of a car change for people on both sides of the vehicle if it is moving at constant velocity?

asked Feb 12, 2022 in Physics by DIY_Man

+294 votes

0 answers

How do helicopters fly vertically?

asked Feb 12, 2022 in Physics by Richy85

+4 votes

0 answers

What is the difference between Fick's law of diffusion and Fick’s first and second laws?

asked Feb 12, 2022 in Physics by Ryluer

+25 votes

0 answers

Will a substance exist in a gaseous state at high pressure and low temperature?

asked Feb 12, 2022 in Physics by JAP3979

+12 votes

0 answers

Is it true that some parts of the Earth don't have the force of gravity?

asked Feb 11, 2022 in Physics by MikeGaunt

+13 votes

0 answers

Why is a boat so big and heavy floating on the water, but the grain of sand cannot?

asked Feb 11, 2022 in Physics by Connors1993

+3 votes

0 answers

If the sun suddenly gained enough mass to pull the Earth in, how long would we have to live? Would we simply reach a new orbital path or would we fall into it?

asked Feb 11, 2022 in Physics by icerinkconnection

+17 votes

0 answers

How do you explain the phenomenon of land appearing from a distance when viewed through a telescope, refuting the notion of a curved Earth?

asked Feb 11, 2022 in Physics by Karo

+76 votes

0 answers

Why is density derived quantity?

asked Feb 11, 2022 in Physics by Cityboy

+287 votes

0 answers

If a conductor is connected to "ground", then what is the charge on it?

asked Feb 11, 2022 in Physics by Garyevans41

+6 votes

0 answers

If the Big Bang has no cause, how could it have happened at all?

asked Feb 11, 2022 in Physics by bazza1

+57 votes

0 answers

What is the density of a solid?

asked Feb 11, 2022 in Physics by Leigh Harper

0 votes

0 answers

If your velocity is increasing, wouldn't your displacement be increasing over time as well (because of the decrease in distance)?

asked Feb 11, 2022 in Physics by BlazeSculptor

+6 votes

0 answers

Can the pair of forces in a couple produce different kinds of motion, such that one produces clockwise and other anti-clockwise?

asked Feb 11, 2022 in Physics by A DAY WASTED

+8 votes

0 answers

The Block Universe theory of time says all time exists. So why do we experience a now? Is it to do with the arrow of time and entropy, and does entropy cause 'time'?

asked Feb 10, 2022 in Physics by Cbbb

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