Which of the following statements is true? 1. All isotopes of a given element have the
same mass.
2. The atomic number of an element is the
number of protons in the nucleus of any of its
isotopes.
3. The nucleus of a neutral atom contains
an equal number of electrons and protons.
4. An ion has the same number of protons
and electrons.

Porque crees que el agua no podia subir mas de 10 m de altura con ese tipo de bomba

Part 1: a magnetic levitation or maglev train rides rails without touching them. explain how this works using your data. include the appropriate magnet drawing in your answer. part 2: two objects are near a bar magnet. one is about 1 cm away, while the other is 6 cm away. compare and contrast the magnetic force that affects each object. use your data to answer the question

** urgent** the voltage across the primary winding is 350,000 v, and the voltage across the secondary winding is 17,500 v. if the secondary winding has 600 coils, how many coils are in the primary winding? a- 30 coilsb- 583 coilsc- 12,000 coilsd- 332,500 coils