Recent questions in Physics

+11 votes

0 answers

How does a computer screen show the color black?

asked Mar 15, 2023 in Physics by Maverick79

+4 votes

0 answers

A cylinder with a movable piston contains 250 cm³ air a5 10° C. If the pressure is kept constant, at what temperature would you expect the volume to be 150 cm ³?

asked Mar 15, 2023 in Physics by StellarWhirl

+327 votes

0 answers

What prevents Betelgeuse from collapsing under its own gravity?

asked Mar 15, 2023 in Physics by freddy198

+10 votes

0 answers

How do I calculate the mass of 2 identical objects if force is 6,67x10^-13 and the distance between the object centers is 10cm?

asked Mar 15, 2023 in Physics by LuminousWhirl

+264 votes

0 answers

If gravity acts because two masses are close to each other, why can't we manipulate or replicate gravity?

asked Mar 15, 2023 in Physics by ZephyrPulse

+16 votes

0 answers

How many km is light’s speed?

asked Mar 15, 2023 in Physics by Jay Jay T

+25 votes

0 answers

How can we use heat to store energy?

asked Mar 15, 2023 in Physics by Super Hans

+15 votes

0 answers

Why can't you simply "turn off" a nuclear reactor in the same way traditional engines are switched on and off?

asked Mar 14, 2023 in Physics by Cocorita

+1 vote

0 answers

What are some consequences and/or applications of the Pauli exclusion principle?

asked Mar 14, 2023 in Physics by P.A.H

+2 votes

0 answers

What is 1/2 minute in a microwave?

asked Mar 14, 2023 in Physics by warey4life

+16 votes

0 answers

What are some ways that we could use electricity to simulate gravity? What would be some uses for this technology if we were able to develop it?

asked Mar 14, 2023 in Physics by StellarHarmony

+5 votes

0 answers

What would happen if a pilot, traveling 1500 mph at 20,000 feet, opened his cockpit?

asked Mar 14, 2023 in Physics by techie

+3 votes

0 answers

What is the linear momentum state law of conservation in linear momentum?

asked Mar 14, 2023 in Physics by Mike808

+6 votes

0 answers

On which axis does the Earth rotate?

asked Mar 14, 2023 in Physics by QuantumDreamer

+120 votes

0 answers

Why are science writers not reporting 20th century dumbest person = Einstein: Solve Newton's F = G m M/r^2 in real numbers and solve Newton's F = G m M/r^2 in complex numbers & subtract the two solutions = Einstein's physics from Newtonian physics?

asked Mar 14, 2023 in Physics by Mkol

0 votes

0 answers

How much does the centrifugal force created by the 1000 mph rotation of the Earth counteract gravity? In other words, if the Earth stopped spinning, would we weigh more?

asked Mar 14, 2023 in Physics by Hillbilly Kid

+15 votes

0 answers

What did Einstein say about the constancy of light speed?

asked Mar 14, 2023 in Physics by EndOfRadio

+177 votes

0 answers

The wheel of a car has a radius 20cm . It initially rotates at 120rpm . A minute later, it makes 90 revolutions . (a) What is the angular acceleration of the wheel? (b) How far does the car travel before coming to rest?

asked Mar 14, 2023 in Physics by Grahamdewalt

+15 votes

0 answers

How do you plot the directivity of a dipole: D=1.67xsin^3 (theta)? I just started learning about antennas and dipoles.

asked Mar 14, 2023 in Physics by EmberHarmony

+21 votes

0 answers

Is it important for a physicist to specialize, or is it okay if a physicist does research on whatever he feels like and not restrict himself to a specialization?

asked Mar 14, 2023 in Physics by widowparcel (3.4k points)

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