Recent content by mystreet123

Thanks for replying! From the link you gave me, "However the form of the law remains the same: the peak wavelength is inversely proportional to temperature (or the peak frequency is directly proportional to temperature)." Why couldn't I use the v=fλ to find peak frequency?

Homework Statement Two scientists detected the cosmic microwave background radiation at a frequency of 160 GHz. What is the temperature of the universe? Homework Equations peak wavelength x temperature = 2.898 x 10^-3 c = f x wavelength The Attempt at a Solution I calculated the wavelength of...

Thanks for replying! So the reason for shorter sound note is due to resonance? as the energy is transferred on from sound box to air as sound energy more quickly than the tuning fork alone?

Homework Statement I was doing a question about resonance of sound box connecting to a tuning fork. It asks why the sound lasts for a shorter time with sound box than if the tuning fork is struck identically without the sound box. Homework EquationsThe Attempt at a Solution Is it because the...

Thank you so much!

Homework Statement A low-energy particle collides elastically with a stationary particle of the same mass. The angle between the subsequent paths of both particles are 90 degrees. But when a high-energy proton collides with a stationary proton, the angle between the two paths is not 90 degrees...

So for point charge it provides electrostatic force while changing electric field gives electrical force? Thanks for replying!

Homework Statement Is there a difference between electric, electrical and electrostatic force? Homework EquationsThe Attempt at a Solution I used them interchageably. Is it incorrect?

Yes understood thanks!

But why I found N-mg = mw^2.x at highest position? if we take upward positive Because when I use this formula, as x increases, N also increases, instead of becoming zero

Can you open it now?

Yes I did!

Homework Statement Some sand is sprinkled onto the cone. The sand oscillates vertically with the frequency of the cone. The amplitude of oscillation of the cone is increased. At a particular amplitude of oscillation the sand begins to lose contact with the cone. By considering the forces...

During gravitational collapse, gravitational potential energy of the gas is converted to its internal kinetic energy so the internal energy of the clous of gas is said to be increased But isn't gravitational potential energy included in the internal energy? Shouldn't the internal energy remains...