Recent content by alphali

So because we can't include all the parameters the equations we use are not fully accurate?

The quark composition of the Δ0 is the same as that of neutron but much heavier and the quark composition of Δ+ is the same as that of proton but also much heavier, so what is the difference between the delta particles and the proton and neutron and where did that extra mass come from?

My friend gave this book "The choice" by Mike Bara, he said that the theories of relativity and quantum mechanics are wrong, it’s a book about ancient civilizations and their prophecies and torsion physics…, normally i would have dismissed this as total bs but he is an aerospace engineer...

I read in a book that "the laws of physics as defined by Newton and Einstein work just fine as long as one don't account for gravity ,rotation or acceleration." Also he said that there is no proof that the space is curved as predicted by Einstein, but i read before that it was poven by an...

I think they mean by lose of energy that it's due to friction, because when dropping an object from a certain hight the object does't lose energy but the energy is converted from potential to kinetic, and so when the question states that there there was loss in energy i think its due to...

light and every other elementary particle act as particle and as a wave it depends on how u look them.

Fnet=ma F(force applied by the crane)-Fr(force of friction)+w(force of gravity on the box)=ma projection along the direction of motion Wx=mgsin22 and Wx is in the opposite direction of motion so it will have negative value F-(Uk.m.g)-(mgsin22)=ma now i think ur missing the force applied by the...

i think u should solve b as follows : \sumF=ma(here u need to use the acceleration) F+W=ma (F is the force u need to find and W is the force of gravity or weight) projection along x-axis f-Wx=ma ( -Wx because the force is acting in the opposite direction)...

1-as u might know protons repel from from each other strongly so how are they bonded together is the nucleus well its because of the strong nuclear force which binds quarks together to form protons and neutrons and it binds protons and neutrons together to form the atomic nuclei.its mediated by...

that's true the problem was here thanks

am sure that the strong interaction mediates the reaction in which a pion and a deuteron form two protons.and yes u should include a color factor.the deuteron is made of a proton and neutron.the positive pion interacts with the neutron and leads to the formation of a proton .is a simple way a...

i think entropy us the measure of disorder an thus it increases when increasing temp and so also in this one the water has greater entropy than ice.

lets say that there is a triplet at the age of exactly 60 years old.one of them A is in space far away from any gravitational field and not moving , B is on planet earth,and C is near a black hole. C looks at A and see that for every 10 min passes according to his clock(hand and biological) A...

i think it happens all the time in particle accelerators when they collide proton-proton beams.its like in the neutron star and black hole, if u have enough energy they will collide (in particle accelerator)and release energy and in case of a black hole the star is made of fermions and it...

u can't talk about time in general u must put a frame of reference . let's say that a spaceship was able to travel at speed of light and u as an observer from outside u can calculate the distance traveled if u know that he is moving at the speed of light by multiplying the speed v by time...