# udiboy

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bio website none location Mumbai, India age 17 member for 1 year, 7 months seen Feb 7 at 14:00 profile views 249

A student and enthusiastic programmer. Love learning Physics! And I make android apps as a hobby.

This will make a great and interesting site : Puzzling. Please follow it

Please support Mechanical Engineering. There are many questions on PhysicsSE site related to engineering, which do not get answered because they are off-topic.

 Jan21 comment How can one calculate the distance a particular sound will travel? There won't be a definitive point where the wave will "stop". The wave's intensity would exponentially die down with distance, and it greatly depends on the conditions of the medium it is travelling through. Jan13 comment From where we can view earth moving? You can see the earth moving if you are not moving with it. Nov22 comment Atwood machine problem The impulse might have deformed the pulley a bit(compressed it), like an inelastic collision. That deformation will produce heat, which leads to loss of mechanical energy. Nov15 comment Constant Velocity 'Force'? Why do you feel it is "actually not a force"? Is it because you feel the force doesn't cause any acceleration to the body it hits? That is not because there is no force, but because all the forces acting on that body cancel out. Nov14 comment Initialize a traveling wave in a 1D gas? can show a diagram of how it breaks into two rarefaction waves? Nov10 comment Period of small oscillations Given small vertical oscillations, you can assume the motion to be simple harmonic. Then the time period would be given by $2\pi/\omega$. Nov7 comment Determine if an object is in orbit @MrUniverse, If you want to plot a perfect trajectory of an object under influence of multiple massive bodies, you'll have to solve the kinematical equations using newtonian gravity, which is possible(I think) but tough and no general solution usually exists. So you will have to compute the trajectory for every case separately. Nov6 comment Determine if an object is in orbit @dmckee, you can make it a multibody situation by making some assumptions, like multiple point like satellites(negligible mass) orbiting around a massive body(earth). In that case you can neglect the gravitational effect of the satellites on each other, and the program can still be a very useful real world simulation. Oct25 comment Where does the extra force generated by a lever come from? Now it does matter how long the lever is because the force of the fulcrum cannot make the lever rotate(it is applying torque in the wrong direction), so you need the 1lb of your finger to make the lever rotate, and so you need a long enough lever to make 1lb sufficient. Oct25 comment Where does the extra force generated by a lever come from? Well its like, the lever supports the weight of the load, the fulcrum supports the total force the lever applies downward(force you exert from your hand + weight of the load, i.e. total force of lever + load system), and the ground likewise supports the force fulcrum exerts downward. Oct24 comment Where does the extra force generated by a lever come from? What does "consistently have the same impact mean"? Anyway if you want to look at the forces on the load only, the lever will exert a normal force upward on the load, which in turn will create tension in the lever. So if you use a heavy enough load, the lever can snap apart Oct24 comment Light behaves as a particle or wave in this thought experiment? secondly, are you saying that no photons will reach the trough at all, if we look at it from the particle view-point Oct24 comment Light behaves as a particle or wave in this thought experiment? You don't need to use a thin strip of metal, you can simply cover the metal plate with paper or something else and expose only the region of the trough. Sep14 comment Is the total mass of the universe constant in time? What doubt do you have? Sep14 comment Power delivered by centripetal force Note that the velocity can be varied in Case 1 by a tangential impulse(if change in F is sudden) or by an appropriate tangential force(if change in F is continuous) Sep8 comment Optimal slit width in Young's double slit experiment I have seen it. Coincidentally, that video is what inspired me to do the experiment myself. Unfortunately he uses manufactured slits(I can see they are pretty close together and thin). Sep7 comment Gravitational force exerted by a rod on a point mass You are right. One cannot integrate $x$ wit respect to $dx$. Maybe you are misinterpreting the author. A link to that solution would help. Sep6 comment Two boxes that are connected pushed by force - what happens between two boxes? PS why they move with the same acceleration is not because the forces cancel out, but because the glued bonds would break if they didn't. They are constrained by the glue to move with the same acceleration. Sep6 comment Two boxes that are connected pushed by force - what happens between two boxes? Because according to newton's law, the forces are exactly equal in magnitude and exactly opposite in direction which is why they cancel out. Sep6 comment Two boxes that are connected pushed by force - what happens between two boxes? Do you mean to ask why an internal force(like the force between those two boxes) has no net effect on whole system of those two boxes?