Physics: A particle has a velocity that is 90.% of the speed of light. If the wavelength of the particle is 1.5 x 10^-15 m, calculate the mass of the particle

I THINK C BECAUSE IF IT IS A GLASS BOX HOW DID A CACTUS GET IN AND NOTHING CAN GET IN OR OUT OF THE BOX SO THERE IS NO CACTUS IN THE BOX...

A particle has a velocity that is 90.% of the speed

miriamjb

17.03.2022

$m=1.63\times 10^{-27}\ kg$

Explanation:

The velocity of a particle is 90% of the speed of light.

The wavelength of the particle is $1.5\times 10^{-15}\ m$

We need to find the mass of the particle.

The formula for the wavelength of a particle is given by :

$\lambda=\dfrac{h}{mv}$

h is Planck's constant

v is 90% of speed of light

m is mass of the particle

$m=\dfrac{h}{\lambda v}\\\\m=\dfrac{6.63\times 10^{-34}}{1.5\times 10^{-15}\times 0.9\times 3\times 10^8}\\\\m=1.63\times 10^{-27}\ kg$

So, the mass of the particle is $1.63\times 10^{-27}\ kg$ .

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