A free `^238U` nucleus kept in a train emits an alpha particle. When the train is stationary, a nucleus decays and a passenger measures that the separation between the alpha particle and the recoiling nucleus becomes x at time t after the decay. If the decay takes place while the train is moving at a uniform velocity v, the distance betwen the alpha particle and the recoiling nucleus at a time t after the decay as measured by the passenger is

Free ^238 U nuclei kept in a train emit alpha particles. When the train is stationary and a uranium nucleus decays, a passenger measures that the separation between the alpha particle and the recoiling nucleus becomes x in time t after the decay. If a decay takes place when the train is moving at a uniform speed v , the distance between the alpha particle and the recoiling nucleus at a time t after the decay, as measured by the passenger will be

Free ^238 U nuclei kept in a train emit alpha particles. When the train is stationary and a uranium nucleus decays, a passenger measues that the separation betwee the alpha particle and the recoiling nucleus becomes x in time t after the decay. If a decay takes place when the train is moving at a uniform speed v , the distance between the alpha particle and the recoiling nucleus at a time t after the decay, as measured by the passenger will be

A uranium 238 nucleus, originally at rest, emits and alpha particle. The alpha particle travels with a speed of v m/s. What is the recoil speed of the residual necleus?

A nucleus ""_(Z)X^(A) emits an alpha - particle with the velocity v. The recoil speed of the daughter nucleus is

Sometimes, the ejection of an alpha -particle does not completely stabilise the nucleus. In such a case, more alpha -particles may be emitted. The alpha -decay

Ne nucleus , the after absorbing energy , decays into two alpha particle and an unknown nucleus . The unknown nucleus is