5.05 + 5 + 5.1 = 15.15cm Then you just divide it by the amount of measurements you had like this:15.15 ÷ 3 = 5.04999971cm Then you can just round it to the 3rd figure: 5.05cm < And that's the mean/average length of the bar. :) (Or the one above if you want all of the decimals too)
The sun I hope this helps
Answer:
He2 molecule contains 4 electrons. Each atom gives 2 electrons in 1s orbitals. This way 2 (1s) orbitals combine to give 2 molecular orbitals viz. ... This indicates that there is no bond formation between 2 HE atoms and hence the He2 molecule does not exist.
Explanation:
I believe the correct answer is true. Voltaic cells produces current from spontaneous reactions and is also known as galvanic cell. For electrolytic cells the reactions are not spontaneous and requires input of current for the reaction to occur.
Answer:
d. add another d-cell to the circuit
Explanation:
To make the electromagnet pick something, the student should add another d-cell to the circuit.
Simply, the electromagnet set up is generating very weak magnetic fields.
- To produce an electromagnet, there must be an interaction between electric fields an conductor.
- As the wire turns around in the vicinity of the electric field, it induces magnetism.
- The number of turns of wire here is pretty considerable.
- But the electric field is very weak.
- Additional d-cell in the circuit will circumvent this problem
