Aradioactive element x with atomic number 88 and mass number 226 emits in succession: 1)alpha particle
2)a beta particle
3)gamma radiation
explain using equations where necessary te changes that take place in the atomic structure of the element at each stage

An inclined plane wrapped around a metal shaft is a a. lever b. screw c. pulley d. wedge

In a good thermo flask the main cause of heat loss is

Two 1.20-m nonconducting wires meet at a right angle. one segment carries + 2.50 µc of charge distributed uniformly along its length, and the other carries - 2.50 µc distributed uniformly along it, as shown in fig. 21.50. ( a. find the magnitude and direction of the electric field these wires produce at point p, which is 60.0 cm from each wire. ( b. if an electron is released at p, what are the magnitude and direction of the net force that these wires exert on it?