The setup alongside shows four metal bolts with different number of windings on each. The windings (wires) are connected to a
power source.
6.1 What is this setup known as?
6.2 Which one of the four bolts will have the biggest (strongest) effect?
6.3 To which main requirement must the wire, which is turned around
the bolt comply?​​

If an atom contains 11 protons in its nucleus, predict the element with the atomic number and electronic configuration. will the number of electrons remain the same during the chemical reaction in such an atom? explain.

In which situation is the acceleration of a car negative? question 5 options: a)the velocity of a car was 75 km/hr over 4 hours. b)the velocity of a car reduced from 50 km/hr over one minute. c)the velocity of a car increased from 40 km. h to 75 km/h over 15 minutes. d)the velocity of a car was 45 km/hr at 2: 00pm and at 4: 00pm its velocity was 85 km/ht.

Boiling water is an example of physical change. true or false