An electron moves in x direction with a speed of `3.6 xx 10^6 m//s`. we can measure its speed to a precision of `1%`. with what precision can we measure its position?

A particle moves with a speed of 1.5 xx10^(8) m/s. The ratio of its mass to its rest mass is

If a particle moves with a speed of 1.5 xx 10^(8) m/s then the ratio of its mass to its rest mass is

An electron moving near an atomic nucleus has a speed of 6xx10^(6) +- 1% m//s . What is the uncertainty in its position?

(a) An electron moves with a speed of 4.70xx10^6 m//s. What is its de-Broglie wavelength? (b) A proton moves with the same speed. Determine its de - Broglie wavelength.

An electron is accelerated to one -tenth the velocity of light suppose its velocity can be measurted with a precision of 1% what must be the uncertain with qa precition of 1 % what must be the uncertainty in position ?

An electron is moving in a cyclotron at a speed of 3.2 xx 10^(7) m s^(-1) in a magnetic field of 5 xx 10^(-4) T perpendicular to it. What is the frequency of this electron? (q=1.6xx10^(-19)C, m_(c)=9.1xx10^(-31)kg)

A proton is accelerated to one tenth of velocity of light. If the velocity can be measured with a precision of +-0.5 % , what must be the uncertainty in its position ? ( m_(p)=1.675 xx 10^(-27)kg) .

Ram moves in east direction at a speed of 6 m/s and Shyam moves 30^(@) east of north at a speed of 6 m/s. The magnitude of their relative velocity is

A shell is fixed from a cannon with a speed of 100 m//s at an angle 60^(@) with the horizontal (positive x-direction). At the highest point of its trajectory, the shell explodes into two equal fragments. One of the fragments moves along the negative x-direction with a speed of 50 m//s . What is the speed of the other fragment at the time of explosion.