Many children with congenital heart defects don't need treatment, but others do. Treatment can include medicines, catheter procedures, surgery, and heart transplants. The treatment depends on the type of the defect, how severe it is, and a child's age, size, and general health.
In a nuclear decay, an unstable atom releases energy or particles to reach a more stable state. The energy released is equivalent to the difference between the mass of the original atom and the resultant atom and particles.
The events involved in the decay arranged in order to describe the process:
1. The nucleus is unstable.
2. The nucleus start to fall apart.
3. Radiation, mass, and energy are released.
4. The nucleus is stable.
Answer: Astronauts only float around in the shuttle when they are outside the gravitational pull of the earth
Explanation: when astronauts takes off from the earth, they get to a point (space) where the earth's gravity can no longer pull them. At this state, they experience weightlessness because there is no gravity. Since there is no gravity to pull them down, hence they start floating.